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Last Friday, I dropped off my 05' Z51 MN6 (mods: Vararam w/spacer, AR headers w/cats & 4:10s) @ ECS for a complete tune, dyno & 160 t/stat. One of the main reason for the tune is the dreaded P0420 code that popped up during a weekend trip in some stop & go traffic. The t/stat because I noticed in the temp gauge was @ 220 constantly in traffic, way too hot for my taste.
When I pick-up the car, I wasn't expecting any noticable difference with a tune... boy was I wrong. Not that there's any noticable difference in power, but the engine just runs a lot better. I put 100 miles this past weekend just to make sure of the differnce the tune made. It just seems to make all the mods I've invested in this car work better. The car pulls so smooth and strong to red line now it's un-real.
Oh yeah, the car dynoed at 369.2 RWHP with the 4:10s. The t/stat did the job it was suppose to, the engine never went above 200 degrees this week end.
Doug did an excellent job with the tune. Once again, I'm very happy with ECS
Kenny
Last edited by c6silverbullet; Jul 2, 2007 at 04:42 PM.