MILLTEK SSXAU836 Cat-back AUDI RS5 B9 2.9 V6 Turbo Sportback (OPF/GPF Models) ymm_54 The Polyphonic Harmonizer uses patented

The Polyphonic Harmonizer uses patented units with pipes of varying diameters and lengths to create multiple exhaust notes that harmonize for a clean

The buffed aluminum pipe looks beautiful in the engine room

Designed to increase horsepower and improve engine performance

73 HP @ 5100 RPM

MILLTEK SSXAU836 Cat-back AUDI RS5 B9 2.9 V6 Turbo Sportback (OPF/GPF Models) ymm_54 The Polyphonic Harmonizer uses patentedDescription MILLTEK SSXAU836 Cat back AUDI RS5 B9 2. 9 V6 Turbo Sportback (OPF GPF Models) The Cat Back systems are designed as direct replacements for the original exhaust, offering improved sound and aesthetics. Multiple configurations are available, allowing the owner to select the desired exhaust volume and tone. All products are manufactured from 304L aircraft grade stainless steel, ensuring durability in harsh conditions. Performance exhaust