3" downpipe with HJS-approved high flow catalytic converter
3" downpipe with HJS-approved high flow catalytic converter
Stainless steel 3" downpipe with high flow catalytic converter designed to work with 3" cat-back exhaust systems.
For use with Milltek cat-back exhaust only
An upgraded downpipe is a must-have item for any owner looking to make serious power from their vehicle.
Stainless steel 3" downpipe with high flow catalytic converter designed to work with 3" cat-back exhaust systems.
For use with Milltek cat-back exhaust only
This product was last offered at the strikethrough price on
08-17-2026
Stainless steel 3" downpipe with high flow catalytic converter designed to work with factory cat-back exhaust systems.
For use with factory cat-back exhaust only
This product was last offered at the strikethrough price on
08-17-2026
3.00" 304 stainless performance downpipe system with a high flow sports catalyst
This product was last offered at the strikethrough price on
10-22-2026
Built to last with 304 stainless steel and engineered for dyno-proven power gains.
This product was last offered at the strikethrough price on
10-22-2026
Provides increased horsepower and torque throughout the powerband, reduced turbocharger lag, and an enhanced exhaust note!
2X Entries Into Our F80 M3 Sweepstakes
3.00" 304 stainless performance downpipe system with a high flow sports catalyst
A great way to add power through the entire RPM range
304 Stainless construction with 200 cell, high flow catalytic converter
Stainless steel 3" downpipe with a EC-approved high flow catalytic converter, for use with Milltek cat-back only
Stainless steel 3" downpipe with a EC-approved high flow catalytic converter, for use with the stock cat-back
Performance downpipe for use with OEM exhaust system. 200 Cell Catalytic Converter
Includes HJS high-volume metallic catalytic converter - 200CPSI
Includes HJS high-volume metallic catalytic converter - 200CPSI