3.8L Upgrades
Just wanted to throw my 2cents in here and hope it can save some cost & aggravation to someone else.
When upgrading my JK, I wanted to do things incrementally so I could note if there were considerable gains from any specific mod.
This is how I started:
- Added a Cold Air Intake and Throttle Body Spacer... difference was barely noticeable, but looked cool LOL!!!
- Added a Cat-Back Stainless Exhaust... same as above, very little difference, but again, looked cool!
- Replaced Spark Plugs with NGK... noticed a little better gas mileage, hardly any power gain.
- Replaced Spark Plug Wires with Granatelli... noticed very modest gain in MPG (probably not worth cost of wires)
- Replaced stock gears with 4.88 (due to having oversize tires) and this upgrade made a decent difference in initial get up and go!
- Installed a Superchips Traildash... this, like the gears, improved pickup and actually improved MPG
All in all, there are SO many products to choose from... the most quantifiable upgrades were the Gears and Tuner.
Even though I like the Superchips Traildash, I'm sure some digging will find similar experiences with certain models of Bully Dog, Diablo, etc... so best wishes fellow JK modders in unleashing your Jeep's inner Mojo, and I hope this helps!