We are proud to announce our F90 downpipes to be the first exhaust system components fully developed, tested and manufactured in the U.S.A. We truly hope this will set our precedent in a future of domestically produced performance products. 

Our downpipes for the F90 BMW M5 completely replace the two lower downpipes eliminating the two secondary catalytic converters improving exhaust flow and turbo response. As the factory catalytic converters remain untouched, our downpipes will not affect the emissions readings of the o2 sensors and cause any "Check Engine Lights".

Our downpipes are constructed with 100% T-304 stainless steel and are designed to be completely bolt-on components requiring no added modification. All products are protected with a 1-year warranty against manufacturer defects. Off-road use only. 

Specifications and Features:
-2018+ BMW M5 (F90)
- Replaces both lower downpipes
- Eliminates secondary catalytic converters
- 100% T-304 stainless steel.
- Complete bolt-on unit.
- 70mm inlet inner diameter.
- 75mm outlet inner diameter.
- Complete bolt-on units.
- Made in U.S.A.
- 1-year warranty against manufacturer defects 

NOTE: All of our products are deemed for "off-road use only"-- please check local laws regarding the modification of the exhaust systems by checking the vehicle code for your state. Many states are more stringent on exhaust modification laws and to pass SMOG. Please check your local laws. 

All of our exhaust system components will alter and affect the vehicle's overall sound in pitch and volume. All to which is subjective in manner. We will not claim responsibility and/or accept returns based on an individual's personal preference.