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FULL 100% NON CATTED
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U WANTED THEM - WE GOT EM ... BIG POWER - NICE LOW PRICE
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XS-POWER - SSAC - S4 DOWNPIPES, AVANT , QUATTRO , B6 B7 4.2L V8
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S4's. This system replaces the 4-cat factory setup
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SSAC downpipes are now available in catless.
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In testing, a full SSAC / XS-POWER Downpipes produced gains of OVER 25hp and 35lb-ft across most of the engine powerband.
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Throttle response is also greatly improved.
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Audi
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S4
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B6 4.2 V8 (04 - 05)
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Audi
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S4
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B7 4.2 V8 (05.5 - 08)
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One of the best, and certainly most cost-effective, ways to add power to your B6/B7 Audi S4 with the 4.2 V8 is the downpipes.
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The factory system contains two sets of catalytic converters on each downpipe,
(1) pre-cat and (1) main cat.
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The pre-cat in particular robs the engine of power because it is very close to the engine and creates turbulance/disruption very early in the exhaust flow out of the engine.
- CLICK HERE TO SEE A VIDEO
