So, I want to throw money into upgrading the performance of the my JK. So far, theirs a 4" stage one lift, 35's on 18s, and I love the way it looks so far. Brakes are new as of a few weeks ago. But at to overall vehicle performance (trans, engine, exhaust sys, anything hardware wise) what does everyone think are the must haves? Or must change OEM to "so-n-so"? Whatever ya got, I'm intererested!

Thanks, Kevin

 

the obvious statement is drop in a new v8 engine.

but seriously the engine is just a complicated air pump... so the easier it can breath the better performance.

take 2" off your lift its not needed for 35s

intake, exhaust, programer

supercharger, regear axles (4.88),

that's my short list

 

Regear and a tuner...

 

Regear with the 35" tires and it will feel like a whole new jeep

 

What gears r best for 35's?

 

Yup,

Engine swap or regear. Regear 4.56-5.13 for 3.8L. 4.1-4.56 for 3.6L

 

On my 12 JKU regeared...Huge difference...

 

Also the tuner is not a bad idea either, it'll help.

 

Save few bucks and don't lift it so high (don't need a 4" lift for 35's) IMO - I'd do the following: (in general order of ease/expense)
Cold Air Intake (or even a K&N at a minimum in the stock air box to let in inhale easier)
Throttle Body Spacer
Cat-Back exhaust (to let it exhale easier)
Programmer

As others have stated; re-gear

 

he said its already lifted, so to get smaller coils would cost money, how will that save him money? i personally like the 4" lift on 35s, and it also allows for 37s down the road. jks have shitty ground clearance and i like having say 40/60 uptravel to downtravel. MOST people dont need it, but to say everyone doesnt is crazy.