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Billy Boat Cat-back/Turbo-Back Exhaust for 1999-2006 Audi TT [MK 1 8N] 180/225


Quick Overview

Unleash all your power and give your car a deep one of a kind rumble with this BB exhaust system!!!

Sku # : BB_Exhaust_Audi_MK1_TT_ER3
Downpipe? (225 only)

Billy Boat Performance Exhaust is the first manufacturer to offer a 100% T-304 stainless steel exhaust system for the Audi RS6. This high-performance system begins at the factory catalytic converter with 2.5" tubing and exits the center muffler with dual 3" tubing. The 3" tubing continues to fully-polished low-restriction mufflers that hang in the factory mounting location. This true-dual system finishes nicely with fully polished twin 3" double-wall tips

Installation is simplified with this completely bolt-on system. Absolutely no cutting, welding or modifications are needed for installation! This true-dual system is TIG welded and completely mandrel bent resulting in a precision fit and an even exhaust flow.


  • Limited lifetime warranty
  • Guaranteed to produce huge HP and TQ gains
  • Fully polished mandrel bent SS tubing
  • Increase in fuel mileage
  • No interior resonance
  • Incredibly deep rumble
  • Designed to fit perfectly
  • All bolt on


FPIM-0555 TT 180/225 CAT BACK 00-06
FPIM-0565 TT 225 3" CAT BACK 00-06
FPIM-0560 TT 225 3" DOWN PIPE 00-06

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