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engine performance

  1. PCMforLess Review

    PCM of NC
    [Updated] PCMforLess Review Overview Alright after a few days of testing I've assessed the PCMforLess tune. I am very pleased. This truly does "wake up the engine". Totally worth the money. I chose the Core program. I however decided to keep the old PCM for that "just in case situation"...
  2. Battery Impact on Engine Performance

    I took my 04 TB into the shop because the battery would go dead if not driven for a couple of days. Prior to this, I was experiencing some performance issues (rough idle, lower fuel mileage, shifting at higher RPM in low gears, etc). I think the battery might have had a bad cell (brand new 6...