B58 4.5inch Catless Race Downpipe
THESE FIT GEN 1 AND GEN 2 B58 VEHICLES.
These high flow downpipes are hand-crafted from smooth radius 304 grade stainless steel utilizing CNC flanges before being TIG welded in custom-built fixtures. This is a direct replacement and requires no cutting or welding. This downpipe is the perfect match for any BMW with the B58 engine including the Toyota Supra.
Our downpipe is designed to fit the factory exhaust system but can also be utilized with aftermarket catback exhaust systems designed to mate up to the OEM downpipe. Installing this downpipe on its own will provide additional sound, amplifying the cars existing off throttle crackle, as well as an approximately 40whp increase. Combined with custom tuning, this simple modification can yield increases of 100 horsepower and 100 ft/lb of torque.
THESE FIT GEN 1 AND GEN 2 B58 VEHICLES.
These high flow downpipes are hand-crafted from smooth radius 304 grade stainless steel utilizing CNC flanges before being TIG welded in custom-built fixtures. This is a direct replacement and requires no cutting or welding. This downpipe is the perfect match for any BMW with the B58 engine including the Toyota Supra.
Our downpipe is designed to fit the factory exhaust system but can also be utilized with aftermarket catback exhaust systems designed to mate up to the OEM downpipe. Installing this downpipe on its own will provide additional sound, amplifying the cars existing off throttle crackle, as well as an approximately 40whp increase. Combined with custom tuning, this simple modification can yield increases of 100 horsepower and 100 ft/lb of torque.
THESE FIT GEN 1 AND GEN 2 B58 VEHICLES.
These high flow downpipes are hand-crafted from smooth radius 304 grade stainless steel utilizing CNC flanges before being TIG welded in custom-built fixtures. This is a direct replacement and requires no cutting or welding. This downpipe is the perfect match for any BMW with the B58 engine including the Toyota Supra.
Our downpipe is designed to fit the factory exhaust system but can also be utilized with aftermarket catback exhaust systems designed to mate up to the OEM downpipe. Installing this downpipe on its own will provide additional sound, amplifying the cars existing off throttle crackle, as well as an approximately 40whp increase. Combined with custom tuning, this simple modification can yield increases of 100 horsepower and 100 ft/lb of torque.