MILLTEK SSXAU650 Cat-back Quad 100mm GT100 AUDI S4 3.0 Turbo V6 B9 - Saloon/Sedan&Avant (Non Sport Diff Cars) ymm_77 allowing adjustment of the SPL

allowing adjustment of the SPL (Sound Pressure Level) to preference

The improved boost spool delivers increased throttle response across the whole RPM range

Our C8 Intake has been independently tested by Corvette specialists

Description BILSTEIN 19-183473 Rear Shock Absorber B4 OE Replacement

MILLTEK SSXAU650 Cat-back Quad 100mm GT100 AUDI S4 3.0 Turbo V6 B9 - Saloon/Sedan&Avant (Non Sport Diff Cars) ymm_77 allowing adjustment of the SPLDescription MILLTEK SSXAU650 Cat back Quad 100mm GT100 AUDI S4 3. 0 Turbo V6 B9 Saloon Sedan&Avant (Non Sport Diff Cars) 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 increase in exhaust volume or a more aggressive tone. Manufactured from 304L aircraft grade stainless steel, these systems are