Hey whats the best bang for the buck, cold ait intake or exhaust cat back. Where did it make the most difference, low end or mid range etc.....All moders please chime in.

 

I HAVE A FLOWMASTER MUFFLER ONLY AND THAT WAS NOTICEABLE, THEN I WENT TO A K&N DROP IN AND DRILLED THE AIRBOX, SAME EXACT EFFECT AS A C.A.I. AND ITS CHEEP

 

Where and how did you drill the Airbox?

 

Look here.

https://www.jk-forum.com/forums/show...ghlight=airbox

 

07 unlimitd auto ruby
Banks cat back
Jet chip stage 1
Airaid cold air dam intake ( I did not use the box I kept the stock bottom and used the tube and filter.
Also had dealer flash computer for towing to change shift pattern

Mostly high end. very strong compared to stock one.

Avg 20 on high way,
16 in town
12 towing a 3500lb travel trailer

Hope this helps

 

So far I've installed the JET stage 1 chip, and the Gibson axle-back exhaust.
I'd say there is a definite change in the drivability. The 'dead-spot' around 3000-3500 rpm is all but gone and my MPG has gone up 3mpg city and 4mpg highway. Running 91 octane.
The biggest difference I have noticed is my (automatic) tranny is now able to hold the appropriate gear while driving up hills.
Hynometer results (from the seat of my pants) +18-20 HP and +30-40 lb-ft of torque.
The best thing about it is the torque comes in much lower in the RPMs now, where you can actually use it.
I'm holding off on the CAI systems until there is a reputable snorkel available (Volant or ARB) to go with it.

 

Whoh, whoh, whoh here.....................

You mean to tell me that I've been putting up with it shifting WAY too early for NOTHING???

All I have to do is ask the dealer for a REFLASH????

I'm calling for an appointment.

 

Thanks ROBAR. Drill in hand I proceed to the shop.

 

Any time, and welcome to JK-Forum. While you have your drill handy, check out this mod., it is

The Rubimon Special Mirror mod.

 

i had a 7 pin trialer harness installed which included a flashing of the unit the shift points changed. When you get on it you can feel the shift now. Maybe I was told something false but I feel the difference