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APR FE100032 2.25" Header-back Exhaust for Audi B6 S4 A/T
Achtuning Price: $2,239.00
Item Number: FE100032
Manufacturer: APR
Manufacturer Part No: FE100032
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The APR FE100032 B6 S4 full exhaust includes downpipes with high flow cats and a dual 2.25" stainless steel, mandrel bent, full catback system as well. The APR downpipes replace the 4-cat factory setup with a pair of metal matrix catalysts. The APR exhaust then splits and each mandrel bent pipe goes to its own muffler with a 3.5" (90mm) bevel-cut, round tip. In testing, a full APR FE100032 exhaust produces gains of 25hp and 35lb-ft across most of the engine powerband. Throttle response is also greatly improved.
The APR FE100032 exhaust is very quiet and simply changes the tone of the exhaust to a deep, unobtrusive sound. With TIG welding, fully stainless construction, and CNC'ed hangers, you will not find a higher quality system on the market.

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