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  1. 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...
  2. LS1/LS2 Engine Tech
    Just got a 04 gto less then 5 months ago , I already have K&N CAI and SLP Exhaust at the moment but also have longtube headers coming in at the end of the week then they’re getting installed with a dyno tune at a local shop. I’m wondering what people would recommend going with after those few...
  3. LS1/LS2 Engine Tech
    I have a set of prc heads coming in this week. And I got a set of TD machine ls1,6 roller rockers. The prc description says factory rocker friendly. But TD machine is saying that the prc heads are completely different from factory. I’m thinking he could possibly be mistake for the 13 degree...
  4. LS1/LS2 Engine Tech
    Hey all, I have a 2004 auto gto witha cam, headers, etc. I have been driving the car for some time now after the dyno tune and I have noticed a ticking that has been driving me nuts. At idle the car sounds amazing. No ticking whatsoever. But once I hit 1500 and up it gets a tick that isn’t...
  5. Lumina ss/ Holden Monaro / GTO 2004

    Lumina ss/ Holden Monaro / GTO 2004

    Full bolts on soon single turbo, stay tuned
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