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  1. Remove This Item CATEGORY: Catalytic Converters and Related
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  2. Billy Boat Performance Exhaust (1)
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  2. $300.00 to $399.99 (2)


Search Term: '4S'
Category: 'Catalytic Converters and Related'
Vehicle: ''All Years and Models''

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Catalytic Converter Exhaust Replacement Pipe B&B, For 911® C4 Porsche®, 1989-1994 Part # P900171
This Unit Is Designed For Off-Highway Racing Only & Should Not Be Used On Public Roads This cat delete pipe, which is also often times referred to as a test pipe, is designed and manufactured by Billy Boat Performance Exhaust as a means of removing the Catalytic Converters from your Porsche 911 C4 exhaust application. By doing this, the exhaust is allowed to breathe and flow more naturally and freely, resulting in a much more aggressive performance and exhaust noise. This test-pipe is not road legal and is meant solely for track and off-road racing use.   Learn More
$319.99 ea.
Catalytic By-Pass Pipe, For 928S (4 Valve) Porsche®, 1984-1986 Part # P908216
This By-Pass Pipe Is Designed For Off Road Or Track Use Only/Check Your Local Laws Before Ordering For Use On The Street Boost Performance By 10% Improve Your Racing Edge Bolt Into Place Without Modifications Photo For Reference Only Reduce back pressure and lower exhaust temperature also results in less chance of heat damaged oil seals and premature failure of valves and engine bearings, thus increasing reliability. Come complete with all necessary gaskets. Learn More
$279.99 ea.
Catalytic Converter, California Only, For 914-4 Porsche®, 1975-1976 Part # P904981C
Restore Lost Power Meets EPA Emission Requirements 5-Year, 50,000-Mile Warranty Less Than Half The Price Of OEM Did you know that on older cars you can lose up to 10% of your horsepower per year from catalytic converter blockage! Restore lost power legally with our high-flow catalytic converters. Made in the U.S. with high quality 14-gauge, mandrel bent tubing. Priced to save you money over factory prices. Learn More
$399.99 ea.
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