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    Fast Intentions is proud to present our B8 S5 Lead Pipes & X-Pipe.

    This Cat Back exhaust system is the premier upgrade for all S4 owners looking to maximize the performance from their 4.2L FSI V8 or 3.0L 24V TFSI V6 engine. Our Lead Pipes & X-Pipe will enhance the sound that Audi created from the factory by making it smoother, deeper, and louder.

    Built as a direct OEM replacement, our Lead Pipes & X-Pipe are easy to install with simple hand tools; no cutting or welding required. Our X Pipe is designed to increase low end torque and maximize power throughout the entire RPM band. The exhaust system is unobtrusive at idle and cruising speeds; but comes to life at wide open throttle.


    • Direct OEM replacement: no cutting or welding required.
    • 2.5″ T-304 mandrel bent stainless steel tubing.
    • All flange connection points are precision Tig welded around the outside.  The inside is sanded down and port-n-polished for a smooth exhaust flow.  This process reduces exhaust turbulence at the flange connection points.
    • Neck down (stock) connection size will allow fitment with the OEM Audi S5 exhaust system.
    • Neck down (stock) connection size will not allow fitment with the Fast Intentions B8 S5 Mid-Pipe & Rear Section.
    • Limited 3-year warranty on all welds and craftsmanship.
    • Application Specific: 2008-2012 B8-S5 4.2L V8
    • Application Specific: 2013-2017 B8.5-S5 3.0L V6
    • Not compatible with Cabriolet models.
    • All installation hardware included.
    • Hand built in the USA.


    • Improved exhaust flow and throttle response.
    • Refining the factory exhaust note by increasing depth and volume.
    • Reduction in EGT’s (Exhaust Gas Temperature) by freeing up back pressure.


    • This product is hand built (in house) to order with a standard lead time of 2 – 4 weeks. Once your order is placed, you will receive an invoice with your estimated shipping date. Note: The lead time may fluctuate less than 2 or greater than 4 weeks based on order volume.
    • California customers are subject to sales tax.
    • Customers outside the continental U.S. are subject to additional shipping charges.
    • Image(s) shown may not reflect actual product.
    Connection Size