Performance (HP, Torque) Mods

I was wondering what can be done for performance mods to the 4.0L beyond the usual air intake, exhaust mods? I know there are a ton of threads but thought that having it all in one place might be easier. Thanks.

 

A supercharger is what everyone will recommend as the best thing (TRD makes one that has a long warranty if the dealer does the install).

You can do headers for some power.

URD makes a MAF calibrator that will give some power, especially along with intake/exhaust mods, but nothing too major (they claim 15hp on a stock truck with dyno charts as proof).

Not going to get a whole lot without a supercharger/turbo.

 

x2. Headers, pulleys, maf cal, and if you have the cash the supercharger.

I'll personally be ordering URD's maf calibrator pretty soon.

 

mine runs fine the way it is.

 

Mine too Pataco! For a truck, this thing screams. Sure more power is cool, but when I nail the pedal in this thing, it impresses me every time. And I just came from a BMW 330i ZHP.

 

I agree and have everything except the pulleys. Pulleys are tricky and can cause more trouble than they are worth.

Here is what you can get over stock with simply CAI, exhaust, MAF sensor cal.

http://www.youtube.com/watch?v=BNQFyhYqxC8

 

Meh, more power just gets you to the speed limiter faster. When I feel the need for speed I roll in my E39 M5.

 

When I want more power I just get on my Polaris 500 H.O. and bend the block for an hour or so. That always seems to calm my inner speed demon. Lol

 

yeap,me to .just hop on the bike and twist her around.ahhhhhhhhhhhh.

 

One of these days I am gonna floor it. But I am still very new to a truck.

 

Well, being that it's a truck, I'd say it helps more with hauling/towing and keeps you in lower gear/rpm ranges when going up hills and what not. Nice to have the low end torque offroad aswell.