Bruce Nunnally Posted September 6, 2008 Report Share Posted September 6, 2008 Exoticperformanceplus.com has a nice photo essay of mods they offer for the 04-07 CTS-V. headers: cats: With a supercharger, intercooler, headers, cats and tune they made: 602 rwhp and 637 ft lbs of torque with 11 psi of boost, not bad considering the hot and muggy weather we are currently having, plus the fresh engine only has about 100 miles on it. This would be 640 to 650 rwhp on a DynoJet unloaded type of dyno. Our Mustang Chassis Dyno, using eddy current, is more accurate but it does give lower numbers. Add approx 20% to the 650 rwhp number and you would be close to what this V is making at the engine! Bruce 2023 Cadillac CT4-V Blackwing Follow me on: Twitter Instagram Youtube Link to comment Share on other sites More sharing options...
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