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Speed Engineering's 1-7/8" longtube headers are dyno proven to add over 25 rear-wheel horsepower on C6 Corvette applications compared to stock exhaust manifolds
BD hose and clamp kits are a must for any modified turbo diesel
Banks Dual Heat Capable Monster-Ram® improves throttle response and fuel economy by eliminating airflow restrictions
Fits vehicles with or without AFM valves and / or NPP valves (dual mode exhaust)
X-pipe and robust resonated midpipes keep rasp in check
Speed Engineering 1-3/4" Longtube Headers — 2004–2007 Cadillac CTS-V LS1/LS2 5.7L/6.0L | 25-1088 1989-chevrolet-v3500-esi1325804 Speed Engineering's 1-7/8" longtube headersThe factory exhaust manifolds on your CTS V are one of the first restrictions holding back your LS1 or LS2. Speed Engineering's 1 3 4" longtube headers are a direct fit, dyno proven upgrade that frees up exhaust flow, improves throttle response, and delivers over 23 rear wheel horsepower over stock. Built from 304 natural stainless steel with mandrel bent primary tubes, CNC machined flanges, and full TIG welded construction engineered to fit right and
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