Header banner
Revain logoHome Page
Jonathan Fernandez photo
1 Level
795 Review
52 Karma

Review on JET 89417 Manual Transmission Module by Jonathan Fernandez

Revainrating 5 out of 5

Direct installation. Immediately improved gas mileage: 3 mpg.

Easy to install but the bottom nut is difficult to access so you will need a 10mm connecting rod and an extension to loosen it. Gas mileage improved immediately, with 3mpg combined and 7mpg highway. The only downside is that I have to use mid-range to prevent ping, but if it's guaranteed to keep going, it'll put money in your wallet!

Pros
  • Designed to increase horsepower
Cons
  • Drill pack