Pipes & X-over Kits
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SHP-6 2.5" Short Mandrel Headpipe
$135.00Connects factory header and X pipe. These fully aluminized pipes extend to the trans X-member. Correct riser height for RA Dport & Round port factory headers, nice tight fit to undercarriage. 2.5" aluminized with mandrel bends.Fits: 71-85 B-body (Big Car), 2nd Gen. Firebird, ALL A-body (GTO/LM 64-79) and 69 or later Grand Prix with Ram Air style round port or dport factory headers, G body Grand Prix/Grand Am 78-87. Learn More
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X-1JCT 2.5" Junction Piece for X-1 Crossover Kit
$109.00Junction only...same junction as in our X-1 crossover kit Learn More -
X-1 2.5" X-Crossover Kit
$199.002.5" X-crossover junction with 2.5" mandrel bent entry and exit tubes. Universal for all dual exhausts. Requires trimming, clamp or weld.Recommended for all applications to 450hp.
Our X crossovers will deliver bigger torque gains (better acceleration)than any other system or other brand X and we've proven it on the dyno! Our X-crossover features a research-driven design which splits the exhaust into two equal sub-pulses. This is where other brands fall short. On a mild-built big-block we made 10-15ft/lbs more torque than competitors' X. That difference grows with more radical build. More torque than running open headers!. Learn More
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SHP1-7 Mandrel Bent Short Headpipes for Long Branch
$99.00Pair, Mandrel bent short headpipes. These aluminized 2.5" short headpipes extend to trans x-over for easy splice into existing system or for exhaust x-over. These fit all Long Branch equipped Pontiacs: GP 69-72, 1st gen FB & X body72-76. Use with FL-3 flanges.
