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  1. Exhaust
    Hey, I am planning to get a custom catless exhaust system and I am wondering how much harm it would cause my GTO to drive without a tune until I can get an appointment at the local tuning shop. I know it'll throw some check engine codes and a check engine light, I just want to make sure I don't...
  2. LS1/LS2 Engine Tech
    Background: Car has catted Kook's headers and a cone filter, and was tuned for a cam by a remote tuner using EFILive scans. The cam at that time was a 226/230 600/600 112 +3. Recently, I discovered that I will need to have the ability to idle smoothly on the Stock factory tune in order to...
  3. LS1/LS2 Engine Tech
    so i just brought my 04 m6 gto to a tuner and the only mods i did to the car were speed engineering long tube headers (1 7/8) deleted the cats and a k&n cai. the tuner said he got the car to peak at 360-370 wheel on a mustang dyno but every time it pull the engine would sense knock and pull...
1-3 of 5 Results