Not sure which 2004 Chevy Colorado In-Line Modules are right for you? We have over 1502 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"I purchased the stage II performance module for my '04 Colorado, with a current odometer reading at 70,000. I have just the K&N stock replacement air filter, Magnaflow exhaust muffler, and running on 91 octane. I noticed an immediate increase in HP, mainly acceleration. I did not notice a big difference in MPG, though I believe there was an increase. I achieved 24.2 MPG highway running 75MPH constant. Was hoping for better mileage increase, but am satisfied with the extra boost in power!" —Craig R from Ontario, CA bought a Jet Performance Module for a 2004 Chevy Colorado, 3.5L 5-cyl. engine.
"So far so good, the hesitation is gone and it seems that acceleration and performance have improved greatly. Too soon to judge fuel economy but I know it is at least the same if not slightly better. I would recommend it to anyone who is looking for better performance, it will never pay for itself in fuel savings but the performance is what I was looking for and found it at a reasonable price." —Blaine H from Enola, PA bought a Jet Performance Module for a 2004 Chevy Colorado, 3.5L 5-cyl. engine.