Kooks Custom Headers' 2 1/2" Axle Back Muffler Exhaust System is made in 304 Grade Stainless Steel. Kooks Axle back mufflers will bolt to the OEM G8 Axle Forward Exhaust and many of other X Pipes. This
system may sound good with non-Kooks components, but remember-- sound quality is a very subjective thing based on each customer's preference with no implied warranty.