High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust
Fits quattro manual transmission models only - To be used with 2.5" aftermarket exhaust system
High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust
Fits quattro manual transmission models only - To be used with 2.5" aftermarket exhaust system
Post-catalyst system.
Manufactured from T304 stainless steel, hand TIG welded and back purged to ensure years of reliable performance
Connect your exhaust with 2.5" CB Connection
4.00" 304 stainless performance downpipe system with a high flow sports catalyst
This product was last offered at the strikethrough price on
10-23-2026
Maximize your engine's performance!
he Stainless Steel Racing Catalysts offers increased horsepower and torque throughout the powerband, reduced turbocharger lag, improved throttle response, and enhanced exhaust note.
2X Entries Into Our F80 M3 Sweepstakes
Eliminates an additional set of resonators from the car, to produce a louder and deeper tone to the exhaust note.
2X Entries Into Our F80 M3 Sweepstakes
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
10-24-2026
The ultimate in free-flowing exhaust performance
Allow turbos to spool faster and generate more power lower in the RPM range.
This product was last offered at the strikethrough price on
06-11-2026
Connect your exhaust with 2.5" CB Connection
Replacement downpipe - To be used in various B6 A4 1.8T Milltek Exhaust Systems - SSXAU305, SSXAU033, SSXAU089, SSXAU510, SSXAU509, SSXAU304
Contains all of the hardware you need to install a new catalytic converter
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
05-02-2026
Features a full and complete exhaust note with increased flow!
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
Direct bolt-on upgrade with a GESi 5” G-Sport UHO+ 400cpsi Catalytic Converter.