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B&B Catback Exhaust System Audi A4 Quattro 2.0T Tiptronic 05-08 Model Number: FPIM-0504 View Price Billy Boat Performance ExhaustÇ_s A4 exhaust is precision crafted using 100% T304 stainless steel. Starting right after the catalytic converter the B&B system has a 2.5Ç_ downpipe that leads into a center muffler. Upon exit of the center muffler the system splits into two 2.25Ç_ pipes that direct the exhaust to a pair of rear mufflers that incorporate B&BÇ_s proprietary Purge Resonance Technology (PRT) which is the latest in resonance control technology. The straight through design mufflers ... |
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