{"title":"BMW M340i (G20)","description":"","products":[{"product_id":"klm-b58-stage-2-engine-build-1-200-whp","title":"KLM B58 Stage 2 Engine Build (1,200 WHP)","description":"\u003cp\u003e\u003cstrong\u003eYou will receive an email after placing this order to confirm freight and final shipping cost.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eStage 2 is where the real upgrades start. If you're already looking at cams and valves for a Stage 1, you're better off here, since Stage 2 isn't a-la-carte parts stacked on a lower tier, it's a complete step up in what the bottom end and head can survive. Rods move to BC I-Beam, stronger under load and built to hold more power. Pistons step up to a higher rated CP-Carrillo spec, and the head gets actual GSC intake and exhaust valves and Kelford or GSC cams instead of a stock valvetrain. We also machine the block in-house to accept oversized ARP studs at this stage, standard hardware doesn't cut it once you're pushing this far past factory.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eIt is built to safely support tuning up to 1,200 WHP, not a promise that your engine makes 1,200 WHP out of the box. Send us your engine or buy a core from us and we build the whole thing start to finish. Either way it comes back ready to run once it's through break-in.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cem\u003eKey Specs\u003c\/em\u003e\u003c\/strong\u003e\u003cbr\u003eRated to safely support tuning up to 1,200 WHP.\u003cbr\u003eEvery build follows our researched and validated Stage 2 spec. Individual engines are not dyno tested.\u003cbr\u003eBreak-in period required. Instructions included with every build.\u003cbr\u003eSend in your own engine or purchase a core from KLM for a complete build.\u003cbr\u003eTurnaround is typically 3 to 4 weeks, occasionally longer depending on parts availability and build queue.\u003c\/p\u003e","brand":"KLM Race","offers":[{"title":"Default Title","offer_id":43439747006538,"sku":"KLM-237","price":16299.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/5431\/9690\/files\/c7c16eb5-B58-Engine-Stage-2-2.jpg?v=1774364129"},{"product_id":"m240i-m340i-g20-g42-billet-catch-can-kit-w-fittings-and-bracket-1","title":"M240i\/M340i (G20\/G42) Billet Catch Can Kit w\/ Fittings and Bracket","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eOur full billet catch can is engineered, designed, and machined completely in-house. The body is machined with no exposed bolts for a clean finish, and it uses an integrated filter instead of the classic external filter, which gives it more clearance and a sleeker profile on the car. Every component is machined from 6061 billet aluminum.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eIt ships with an adjustable mounting bracket for straightforward installation and multiple fitting options so it fits a range of builds. Dimensions are approximately 8\" x 4\", and the can holds over one quart. Inside is our multi-step baffling system that separates oil from the crankcase vapor before it can reach your intake.\u003c\/p\u003e","brand":"KLM Race","offers":[{"title":"Default Title","offer_id":43439747072074,"sku":"KLM-280","price":466.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/5431\/9690\/files\/0326f5c2-M340i-Catch-Can-Kit-V2-scaled.jpg?v=1774364128"},{"product_id":"klm-b58-stage-1-engine-build-1-000-whp","title":"KLM B58 Stage 1 Engine Build (1,000 WHP)","description":"\u003cp\u003e\u003cstrong\u003eYou will receive an email after placing this order to confirm freight and final shipping cost.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eKLM B58 Stage 1 Engine Build (1,000 WHP)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThis is our baseline for anyone pushing a B58 past what the factory internals were ever built to survive. Stage 1 covers the rotating assembly, head hardware, and sealing, everything that has to hold when boost and timing start climbing. It is built to safely support tuning up to 1,000 WHP, not a promise that your engine makes 1,000 WHP out of the box. That number is a ceiling, and we build with margin above it on purpose.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eSend us your engine or buy a core from us and we build the whole thing start to finish. Either way it comes back ready to run once it's through break-in.\u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cem\u003eKey Specs\u003c\/em\u003e\u003c\/strong\u003e\u003cbr\u003eRated to safely support tuning up to 1,000 WHP.\u003cbr\u003eEvery build follows our researched and validated Stage 1 spec. Individual engines are not dyno tested.\u003cbr\u003eBreak-in period required. Instructions included with every build.\u003cbr\u003eSend in your own engine or purchase a core from KLM for a complete build.\u003cbr\u003eTurnaround is typically 3 to 4 weeks, occasionally longer depending on parts availability and build queue.\u003cbr\u003e\u003c\/p\u003e","brand":"KLM Race","offers":[{"title":"Default Title","offer_id":43439747334218,"sku":"KLM-236","price":11999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/5431\/9690\/files\/4daa48c4-B58-Engine-Stage-1.jpg?v=1774364133"},{"product_id":"bmw-m240i-m340i-g20-g42-1","title":"BMW M240i\/M340i (G20\/G42) Turbo Kit","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe M240i \/ M340i Turbo Kit is our standard big-single setup for the Gen 2 B58, covering both the G42 and G20 on the same hardware. It's built the way we build all our hot parts: fabricated in-house so the packaging is ours instead of a vendor's. The manifold and downpipe are welded up here, which keeps the runners tight to the head and prioritizes the wastegate so exhaust energy reaches boost control before it hits the turbine. We run the Turbosmart GenV HyperGate45 to keep that control honest under load.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe fittings and block adapters are machined in-house. Oil feed, oil return, and both coolant block fittings are cut for the B58, so they seat clean without stacking adapters to make something generic fit. The drain line, the 10AN oil drain outlet flange, and the 22\" stainless feed line are built to the kit, not adapted to it.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eWe don't modify the compressor housing to make a turbo fit. That's on purpose. You can swap turbos at the track without cutting or welding, so when your combo changes the kit doesn't fight you.\u003c\/p\u003e","brand":"KLM Race","offers":[{"title":"Precision 6466","offer_id":43762036703306,"sku":"KLM-158","price":6170.55,"currency_code":"USD","in_stock":true},{"title":"Precision 6870","offer_id":43762036736074,"sku":"KLM-160","price":8769.8,"currency_code":"USD","in_stock":true},{"title":"Precision 7275","offer_id":43762036768842,"sku":"KLM-157","price":8816.28,"currency_code":"USD","in_stock":true},{"title":"Precision 7675","offer_id":43762036801610,"sku":"KLM-161","price":8869.27,"currency_code":"USD","in_stock":true},{"title":"Garrett G35-1050","offer_id":43762036834378,"sku":"KLM-162","price":8980.6,"currency_code":"USD","in_stock":true},{"title":"Garrett G40-1150","offer_id":43762036867146,"sku":"KLM-163","price":9080.6,"currency_code":"USD","in_stock":true},{"title":"Turbosmart 6870","offer_id":43762036899914,"sku":"KLM-164","price":8899.34,"currency_code":"USD","in_stock":true},{"title":"Turbosmart 7275","offer_id":43762036932682,"sku":"KLM-165","price":9082.94,"currency_code":"USD","in_stock":true},{"title":"Turbosmart 7675","offer_id":43762036965450,"sku":"KLM-166","price":9129.73,"currency_code":"USD","in_stock":true},{"title":"No Turbo","offer_id":43762036998218,"sku":"KLM-158","price":6170.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/5431\/9690\/files\/660d428d-KLM-A91-6-Port-Complete-scaled.jpg?v=1774364149"},{"product_id":"bmw-m240i-m340i-savage-series-turbo-kitg20-g42-1","title":"BMW M240i\/M340i SAVAGE Series Turbo Kit(G20\/G42)","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe M240i \/ M340i SAVAGE is our big-single kit for the Gen 2 B58 in the G42 and G20, built on the same hardware for both chassis. Hot parts are fabricated in-house so the packaging is ours instead of a vendor's. The manifold, 4\" downpipe, and turndown are welded up as one assembly, which keeps the runners tight to the head and prioritizes the wastegate so exhaust energy reaches boost control before it hits the turbine. We run the Turbosmart GenV HyperGate45 to keep that control honest under load.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eThe fittings and block adapters are machined in-house. Oil feed, oil return, and both coolant block fittings are cut for the B58, so they seat clean without stacking adapters to make something generic fit. The drain line, the Sportsman 10AN oil drain outlet flange, and the 22\" stainless feed line are built to the kit, not adapted to it.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eWe don't modify the compressor housing to make a turbo fit. That's on purpose. You can swap turbos at the track without cutting or welding, so when your combo changes the kit doesn't fight you.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eSelect your turbo at checkout, or choose No Turbo and supply your own.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003e\u003cstrong\u003eImportant, read before you buy:\u003c\/strong\u003e This SAVAGE kit ships with a 4\" downpipe and turndown. Running a full exhaust means going 4\" all the way back, or modifying your existing exhaust to mate to the 4\" downpipe. Plan for that before you order.\u003c\/p\u003e","brand":"KLM Race","offers":[{"title":"Precision 6880","offer_id":43758874034250,"sku":"KLM-168","price":10559.28,"currency_code":"USD","in_stock":true},{"title":"Precision 7480","offer_id":43758874067018,"sku":"KLM-169","price":10750.78,"currency_code":"USD","in_stock":true},{"title":"Precision 7680","offer_id":43758874099786,"sku":"KLM-170","price":11373.16,"currency_code":"USD","in_stock":true},{"title":"Precision 8080","offer_id":43758874132554,"sku":"KLM-171","price":11373.14,"currency_code":"USD","in_stock":true},{"title":"Precision 8085","offer_id":43758874165322,"sku":"KLM-172","price":11540.7,"currency_code":"USD","in_stock":true},{"title":"Precision 8385","offer_id":43758874198090,"sku":"KLM-173","price":11612.52,"currency_code":"USD","in_stock":true},{"title":"Precision 8685","offer_id":43758874230858,"sku":"KLM-174","price":11782.23,"currency_code":"USD","in_stock":true},{"title":"Garrett 1200","offer_id":43758874263626,"sku":"KLM-176","price":9971.27,"currency_code":"USD","in_stock":true},{"title":"Garrett 1475","offer_id":43758874296394,"sku":"KLM-177","price":12049.3,"currency_code":"USD","in_stock":true},{"title":"Turbo Smart 7880","offer_id":43758874329162,"sku":"KLM-178","price":12239.99,"currency_code":"USD","in_stock":true},{"title":"Turbo Smart 8280","offer_id":43758874361930,"sku":"KLM-179","price":11039.99,"currency_code":"USD","in_stock":true},{"title":"Garrett 4268","offer_id":43758874394698,"sku":"KLM-180","price":10661.2,"currency_code":"USD","in_stock":true},{"title":"Garrett 4573","offer_id":43758874427466,"sku":"KLM-181","price":11626.23,"currency_code":"USD","in_stock":true},{"title":"No Turbo","offer_id":43758874460234,"sku":"KLM-167","price":7400.0,"currency_code":"USD","in_stock":true},{"title":"Precision 73.9","offer_id":43758874493002,"sku":"KLM-175","price":11540.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/5431\/9690\/files\/76af182d-Untitled-1.jpg?v=1774364136"},{"product_id":"klm-b58-stage-3-engine-build-1-300-whp","title":"KLM B58 Stage 3 Engine Build (1,300 WHP)","description":"\u003cp\u003e\u003cstrong\u003eYou will receive an email after placing this order to confirm freight and final shipping cost.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eStage 3 keeps the factory 3.0L stroke and shifts the focus to the head. We do 5-axis CNC porting in-house along with a full valve job, smoother ports, less turbulence, better seal, more air moving through the head at the same displacement. Rods, pistons, bearings, and cams carry over from Stage 2, and oversized ARP studs with the in-house machining that fits them carry through as well.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eIt is built to safely support tuning up to 1,300 WHP, not a promise that your engine makes 1,300 WHP out of the box. Send us your engine or buy a core from us and we build the whole thing start to finish. Either way it comes back ready to run once it's through break-in.\u003cbr\u003e\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cem\u003eKey Specs\u003c\/em\u003e\u003c\/strong\u003e\u003cbr\u003eRated to safely support tuning up to 1,300 WHP.\u003cbr\u003eEvery build follows our researched and validated Stage 3 spec. Individual engines are not dyno tested.\u003cbr\u003eBreak-in period required. Instructions included with every build.\u003cbr\u003eSend in your own engine or purchase a core from KLM for a complete build.\u003cbr\u003eTurnaround is typically 3 to 4 weeks, occasionally longer depending on parts availability and build queue.\u003c\/p\u003e","brand":"KLM Race","offers":[{"title":"Default Title","offer_id":43439747891274,"sku":"KLM-238","price":19999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/5431\/9690\/files\/ab837e5c-B58-Stage-3.jpg?v=1774364137"},{"product_id":"b58-s58-arp-flex-plate-bolt-upgrade-1","title":"B58\/S58 ARP Flex Plate Bolt Upgrade","description":"We have worked with ARP to bring you a reliable upgrade option for your flex plate bolts. These bolts will replace your torque to yield bolts that come standard on your B58\/S58 engine.","brand":"KLM Race","offers":[{"title":"Default Title","offer_id":43439748022346,"sku":null,"price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/5431\/9690\/files\/fd0c1c01-DSC08264-Enhanced-NR-Edit-scaled.jpg?v=1774364141"},{"product_id":"b58-engine-core","title":"B58 Engine Core","description":"","brand":"KLM Race","offers":[{"title":"Default Title","offer_id":43439748317258,"sku":null,"price":9500.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/5431\/9690\/files\/7d3a1ef9-DSC02372-scaled.jpg?v=1774364140"},{"product_id":"klm-b58-stage-4-savage-engine-build-1-500-whp","title":"KLM B58 Stage 4 SAVAGE Engine Build (1,500 WHP)","description":"\u003cp\u003e\u003cstrong\u003eYou will receive an email after placing this order to confirm freight and final shipping cost.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eIf you're building a Stage 4, we already know what you're doing. This is drag car territory, or you're chasing a number most B58 owners will never see. This is our peak build, the one we throw everything at because anything less won't survive what you're about to put it through. Displacement moves to a 3.2L stroker as standard, not an add-on. Pistons are KLM Custom Spec, made to our own spec, not a catalog part with a rating stamped on the box. The head gets our KLM Spec modification, welding and machining to reinforce it beyond what the casting can handle stock, on top of the same 5-axis CNC porting from Stage 3. At 1,500 plus whp, the head has to survive just as hard as the bottom end.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\"\u003eSend us your engine or buy a core from us and we build the whole thing start to finish. Either way it comes back ready to run once it's through break-in.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cem\u003eKey Specs\u003c\/em\u003e\u003c\/strong\u003e\u003cbr\u003eRated for 1,500+ WHP. Our own shop car and several customer builds are currently running in the 1,600 whp range on this spec.\u003cbr\u003eThis is our current peak build level. No stage above this exists.\u003cbr\u003eEvery build follows our researched and validated Stage 4 spec. Individual engines are not dyno tested.\u003cbr\u003eBreak-in period required. Instructions included with every build.\u003cbr\u003eSend in your own engine or purchase a core from KLM for a complete build.\u003cbr\u003eTurnaround is typically 3 to 4 weeks, occasionally longer depending on parts availability and build queue.\u003c\/p\u003e","brand":"KLM Race","offers":[{"title":"Default Title","offer_id":43439748546634,"sku":"KLM-239","price":26999.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/5431\/9690\/files\/79b49575-B58-Stage-4-SAVAGE.jpg?v=1774364144"},{"product_id":"klm-parachute-kits-g-series","title":"KLM Parachute Kits (G-Series)","description":"\u003cp data-start=\"228\" data-end=\"599\"\u003eOur KLM Parachute Kit has been purpose-built for the BMW G-Series chassis, delivering a clean and functional solution for high-speed drag racing applications. Designed with both performance and practicality in mind, our parachute kit utilizes factory OEM mounting points, allowing for a straightforward installation without the need for extensive chassis modifications.\u003c\/p\u003e\r\n\u003cp data-start=\"601\" data-end=\"1034\"\u003eIn drag racing, safety and compliance are critical once vehicles begin reaching certain speeds. A drag parachute becomes mandatory for vehicles exceeding 150 mph, ensuring safe and controlled deceleration at the end of the track. According to racing regulations, both the NHRA and IHRA require a single parachute for vehicles running between 150–199 mph, while dual parachutes are required for vehicles exceeding 200 mph.\u003c\/p\u003e\r\n\u003cp data-start=\"1036\" data-end=\"1352\"\u003eOur KLM Parachute Kit provides the necessary mounting solution to meet these requirements while maintaining a clean integration with the G-Series chassis. This system is ideal for high-performance builds competing in classes where braking alone may not provide sufficient stopping power before the end of the track.\u003c\/p\u003e\r\n\u003cp data-start=\"1354\" data-end=\"1552\"\u003eEngineered for strength, reliability, and ease of installation, the KLM Parachute Kit is the perfect solution for racers pushing their BMW G-Series builds into the 150+ mph range and beyond.\u003c\/p\u003e\r\n\u003cstrong\u003eParachute Kit Includes:\u003c\/strong\u003e\r\n\u003cul\u003e\r\n \t\u003cli\u003eMain Bar\u003c\/li\u003e\r\n \t\u003cli\u003eParachute Mount Bar\u003c\/li\u003e\r\n \t\u003cli\u003eStroud Parachute\u003c\/li\u003e\r\n \t\u003cli\u003eParachute Release Cable\u003c\/li\u003e\r\n \t\u003cli\u003eCable Holder\u003c\/li\u003e\r\n \t\u003cli\u003eBillet Handle with Assembly\u003c\/li\u003e\r\n \t\u003cli\u003eHandle Mounting Plate\u003c\/li\u003e\r\n \t\u003cli\u003eKLM Parachute Billet Spacer\u003c\/li\u003e\r\n \t\u003cli\u003e1\/2\" Bolts (Qty. 2)\u003c\/li\u003e\r\n \t\u003cli\u003e1\/2\" Washers (Qty. 4)\u003c\/li\u003e\r\n \t\u003cli\u003e1\/2\" Nuts (Qty. 2)\u003c\/li\u003e\r\n \t\u003cli\u003eButton Head Bolts (Qty. 4)\u003c\/li\u003e\r\n \t\u003cli\u003e1\/4\" Nuts (Qty. 4)\u003c\/li\u003e\r\n\u003c\/ul\u003e","brand":"KLM Race","offers":[{"title":"Default Title","offer_id":43439748677706,"sku":null,"price":2499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/5431\/9690\/files\/8cadb667-KLM-Parachute-Kit1-scaled.jpg?v=1774364144"},{"product_id":"savage-turbo-kit-upgrade","title":"SAVAGE Turbo Kit Upgrade","description":"\u003cp\u003eUpgrade your standard turbo kit to our SAVAGE kit with the key components needed to pair up to a Sportsman size turbo.\u003c\/p\u003e","brand":"KLM Race","offers":[{"title":"Default Title","offer_id":43439748776010,"sku":null,"price":1600.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/5431\/9690\/files\/b8a341f8-SAVAGE-Upgrade.jpg?v=1774364144"},{"product_id":"klm-transmission-build-zf-8hp51-a90-a91-and-g20-g42","title":"KLM Transmission Build - ZF 8HP51  (A90\/A91 and G20\/G42)","description":"\u003cp\u003e\u003cstrong\u003eYou will receive an email after placing this order to confirm freight and final shipping cost.\u003c\/strong\u003e\u003c\/p\u003e\nDodson has applied its world-leading expertise in DCT transmissions to the automatic transmission market, and is proud to introduce high horsepower upgrade packages for the Toyota Supra. If you’ve upgraded the turbos on an 8HP51-equipped vehicle and are experiencing clutch slip, our quick-and-easy to install Dodson upgrades are a must-have. \r\n\r\nStage 1 - Superstock (1,000HP)\r\nStage 2 - Sportsman (1,300HP)\r\nStage 3 - Sportsman Plus (1,500+HP)","brand":"KLM Race","offers":[{"title":"Stage 1 :Superstock (1000hp \/ 1000tq)","offer_id":43447838310474,"sku":"BUILD-TRANS-KLM-ZF8HP51","price":5500.0,"currency_code":"USD","in_stock":true},{"title":"Stage 2: Sportsman (1400hp \/ 1200tq)","offer_id":43447838441546,"sku":"BUILD-TRANS-KLM-ZF8HP55","price":7499.99,"currency_code":"USD","in_stock":true},{"title":"Stage 3 : Sportsman Plus (1500+hp \/  1300+tq)","offer_id":43447838572618,"sku":"BUILD-TRANS-KLM-ZF8HP59","price":10499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0614\/5431\/9690\/files\/60b19fc1-8HP51-Build.jpg?v=1774364144"},{"product_id":"5-axis-cnc-head-porting-b58-s58","title":"5-Axis CNC Head Porting (B58\/S58)","description":"CNC head porting offers several performance benefits by optimizing airflow through the engine's cylinder head. By optimizing airflow with CNC porting, you are increasing the engine's ability to fill the cylinders with air and fuel, leading to more power. This process involves precisely shaping the intake and exhaust ports which leads to improved throttle response and enhanced fuel efficiency. 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