BMW E46 M3 Exhaust SECTION 1 with Active AFlow extra high flow catalysts F36 If your car was built

If your car was built in the cutover months 08/2020 and 09/2020

Hard coat anodized for long life and reliability

Lean/Rich evaluation

and octane levels unique to other countries

year-2003-make-bmw

BMW E46 M3 Exhaust SECTION 1 with Active AFlow extra high flow catalysts F36 If your car was builtActive Autowerke BMW E46 M3 Exhaust SECTION 1 with Active AFlow ultra high flow catalysts NO PERFORMANCE TUNE NEEDED. Combine the Active Autowerke Exhaust SECTION 1 with a pair of Active AFlow catalysts and you have part of a winning combination for your BMW E46 M3. Design and Concept: Why create an exhaust SECTION 1 when the USA version BMW factory SECTION 1 already comes from the factory as a straight through design with two separate pipes and