Elevate the performance and acoustic profile of your BMW G8X with Valvetronic Designs' EPA-compliant 400-cell catted downpipes.
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Elevate the performance and acoustic profile of your BMW G8X with Valvetronic Designs' EPA-compliant 400-cell catted downpipes.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Upgrade your M3/M4's exhaust to make the S58's naturally aggresive tone shine!
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Enables the control of a single electronic exhaust valve
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Please visually confirm the exhaust valve actuator installed on your vehicle prior to purchase or installation - Only compatible with systems requiring a single electric valve actuator
Upgrade your M3/M4's exhaust to make the S58's naturally aggresive tone shine!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Upgrade your M3/M4's exhaust to make the S58's naturally aggresive tone shine!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Features a durable billet aluminum construction that provides improved cooling and reduces heat soak.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
Features a durable billet aluminum construction that provides improved cooling and reduces heat soak. Cerakoted with thermal Dispersion
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
Features a durable billet aluminum construction that provides improved cooling and reduces heat soak.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
Features a durable billet aluminum construction that provides improved cooling and reduces heat soak. Cerakoted with thermal Dispersion
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
Increase flow and performance and get that beautiful carbon look every time you open up your hood!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 2X Entries For Our 25th Anniversary Sweepstakes!
Includes gasket
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This product was last offered at the strikethrough price on
05-07-2026
Unleash the power of your car by reducing the biggest restriction in your exhaust, while remaining emissions compliant.
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Increase of +25 Horsepower, and +25 Torque, Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!
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Astonishing gains up to +295 Horsepower & 344 Torque! 100% Bolt-on installation / Upgrade. You are required to ship Weistec your OE turbochargers as a core.
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You are required to ship Weistec your OE turbochargers as a core.
Increase of +170 Horsepower, and +294 Torque! Eliminate top speed limiter, Increased throttle response. W.2 Tunes are designed for vehicles with performance exhausts & high-flow air filters!
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This software is only compatible with Windows PC / Laptop.
Increase of +121 Horsepower, and +269 Torque! Eliminate top speed limiter, Increased throttle response. W.1 Tunes are designed for completely stock vehicles with no other modifications!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
This software is only compatible with Windows PC / Laptop. CARB certified for sale in all 50 states.