Audi S4/S5 B9 Titanium Valved Cat Back Exhaust Start Button It's the small details that

It's the small details that make the biggest difference

This system does not only sound amazing

2015 – 2018 F80/F82/F83 BMW M3 & M4

All G42’s

For Left Hand Drive Vehicles

Audi S4/S5 B9 Titanium Valved Cat Back Exhaust Start Button It's the small details thatFirst ever full titanium exhaust for Audi S4 S5. We have finally released an Audi B9 system that will clear the sport differential without having any fitment issues. Our new B9 system has a new style mid pipe, the mid pipe goes down into one single larger diameter piping that routes past the sport differential without compromising any power loss. The best sounding, most affordable B9 system has finally arrived. Give your 3. 0L Turbocharged V6 the best