Reviewed By John B (Saint Augustine, FL) Reviewed for a 2010 Ford F-150 —2/24/2017 4:47 AM
Installed it on my truck that already had a k&n intake system and noticed a huge difference in performance. Sounds pretty good too.
Reviewed By Robert S (HARRISBURG, PA) Reviewed for a 2006 Chevy Trailblazer —3/25/2017 8:23 AM
The Jet Power-flow spacer has helped the other engine upgrades that I have installed. These include a PCM of NC performance PCM, Jet Power MASS sensor and a Volant Cold air intake that connects directly to the throttle body. I'm not sure of the total HP/ torque increase, but this upgrades have made the 4.2L perform like a V-8 and has given a consistent 20MPG on the highway (highest was 23MPG on the highway) which is better than the 17MPG that I was getting in stock form.
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