Shift Kit


Asked by Oct 27, 2008 at 12:26 AM about the 2004 Chevrolet Blazer

Question type: Car Customization

If I install a performance chip on my '04 Chevy Blazer ZR2, can I also install a Jet Power Shift Kit also?

3 Answers

Andrew Gilbert

I don't think both would be a good idea. The Jet power shift looks like it would work just fine by it's self, so I would suggest that first and because it would be easy to put in/take out if you don't care for it.

George Papamihalakis

Dont waste your money on any of those chips, you will not see a difference. If you were to get any I would get the Hypertech because you can change gear ratios and tire sizes with it. A custom tune will be more beneficial, however on a stock engine you will not see much of an improvement.

Adrian Treviño

I know this is an old post, but... I don't have first hand experience on the chips and Jet brand products, but I agree with George and recommend the Hypertech products, although, on the '99 Blazer I have on my profile I DID see a big improvement using the Hypertech Programmer III. Check out the Dyno charts for your Blazer at But to answer your question, anything you plug into your OBD II slot re-flashes the computers memory, i'm guessing the Jet Module would just over-ride any setting the performance chip has. Bottom line, go with the Hypertech versus Jet, you have more performance options.

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