The CTS B5 A4 1.8T cat pipe is the premier cat pipe for your B5 Audi A4 1.8T.  Our cat pipe is designed to seamlessly fit in place of your restrictive stock catalytic converter, which is situated immediately after the turbocharger.  Our cat pipe features 3" stainless steel piping, smooth mandrel bends, three 02 sensor bungs.  Substantial power gains, improved exhaust flow, and a more throaty sound are the main benefits of installing our cat pipe. Upon inspection, you will notice smooth mandrel bent piping with seamless transitions from the turbocharger to the exhaust system.  In addition to being one of the best bang-for-the-buck performance upgrades for A4 owners, our cat pipe is also a very attractive piece.  Each 3" cat pipe is mandrel bent and hand tig welded.

Product details

• T304 stainless steel construction
• Mandrel-bent stainless steel
• Fully tig welded design
• Three 02 bungs
• Includes high-flow catalytic converter
• Install hardware included
• Throaty sound 
• Great power upgrade
• 1-year limited warranty

Emissions Disclaimer

• This product is sold for off-road use only.
• By purchasing this product, you understand this product is sold for competition use and is not legal for use in highway or street vehicles.