BMW X3M and X4M F97 F98 chassis S58 Engine Titanium Decat Downpipes
These downpipes will fit the following models:
We have tested this product and found increases of 30-40bhp on a standard car.
These downpipes fit the stock catback as well as all aftermarket catbacks that match up with the OEM downpipe.
Professional installation is recommended as some exhausts sit slightly different from others and can be tight. You may also need to code out the new PPF filters on some of the newer cars.
We also recommend purchasing a Lambda Sensor Spacer(s) to prevent the engine light coming on in most cases. If you search our other items you will find these.
Key Features:
* Increase Horsepower
* Increase Torque
* Reduce Weight
* Enhanced sound of Exhaust