BMW TUNING PRODUCTS
Exhaust Prototype: G29/Z4-B48 Engine
This is the exhaust system from behind the catalytic converter to the tailpipes.
The exhaust flaps are installed by relocating the genuine BMW actuators.
Using a rear diffuser designed for the M40i, the quad-exit tailpipes emphasize a sporty look.
Designed with a focus on engine power, it produces a smooth and pleasant exhaust note at high RPMs.
We’ve made adjustments based on driving tests in various locations—including city streets, highways, hill climbs, and racetracks—and plan to release it around December.
The G29/Z4-20i features a short wheelbase and a 4-cylinder turbocharged engine ( B48 ), giving it a light front end and excellent handling. With light tuning that boosts power by about 100 horsepower, it transforms into a car that offers an exceptional motorsports experience.
We want you to experience this fun, so we’ve started developing an exhaust system for the 4-cylinder model.


