Engineered to eliminate the pneumatic bottlenecks found in the stock S58 airboxes.
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Engineered to eliminate the pneumatic bottlenecks found in the stock S58 airboxes.
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A precision-engineered solution designed to optimize the breathing of the BMW S58 engine.
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Upgrade your Valve Springs in your BMW S58! - 84lbs
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Upgrade to Supertech's High Performance Oversized Valve Kit!
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Upgrade to Supertech's High Performance Standard Sized Valve Kit!
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Upgrade your Valve Springs in your BMW S58! - 75lbs
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Full Frame Upgraded Twin Turbo Kit!
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This "No Limit" manifold is built for serious drag racers and enthusiasts aiming to surpass the 1500 WHP mark.
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Lead time may vary, call for availability.
Unlock the true performance potential of your S58-powered BMW with the Dorch Engineering Flex Fuel ECA Kit.
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Engages water-methanol system at 35PSI
Adjustable from 25-50psi
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Includes 2.5 gallon tank, red high temp nylon tubing, and quick-connect fittings
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This block-off ensures a factory-level fit and finish while providing the durability required for high-heat and high-pressure racing environments.
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This product was last offered at the strikethrough price on
07-02-2026
This adapter is purpose-built, ensuring that DIY builders and professional tuners have a reliable point of attachment for custom oil or coolant return plumbing.
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This product was last offered at the strikethrough price on
07-02-2026
Whether you are running the stock turbos or have upgraded to high-flow "stock frame" units, these inlets ensure your engine breathes without effort.
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This product was last offered at the strikethrough price on
07-02-2026
This kit addresses the inherent weakness in the G8X rear end by filling the air gaps in the front differential bushings with high-strength billet aluminum.
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This product was last offered at the strikethrough price on
07-02-2026