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  1. ATS Performance Mods Forum
    I never done an update since 2019 on here, so here the numbers from 2 different dyno shops, installed my exhaust manifold. 407/400 torque to 447/446 rwhp 16% drivetrain to crank calculates to 518 HP. Get reduced temps by 300/400 degrees= more pulls. Oem Temps 1800°+ vs My exhaust manifold 1495°...
  2. ATS Performance Mods Forum
    I thought I give an update: Cadillac running great. Installing 3.73 differential, torque converter 3800 stall, trans cooler, aluminum drive shaft soon. Turbsmart 10lb and a 7lb spring. Wheels are forged weigh 17.8lbs each vs stock 31lbs. Also custom exhaust manafold, ported intake, nostrum fuel...
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