1warmjku

I noticed a big difference with the sprintbooster! Made it feel Normal and not lag. Didn't add power but sure did feel like it.

Monte417

This^. I had the superchips throttle response set on mine. One trip and I immediately changed it back. Way to jerky in 4lo trying to crawl with a manual nontheless

Zick

Try changing throttle spring in gas pedal assemble.

Pushing that gas pedal - Jeep Wrangler Forum

ronjenx

I wouldn't want to reduce the pedal's ability to return to "closed throttle". Removing one of the springs, or changing to a lighter one would do just that.

LidLess07X

The Sprintbooster is easily adjustable with the three settings and doesnt require any wiring. You basically disconnect the clip on the gas pedal and install it in -between. Fish the little wired remote up to your dash or console and you're done. Those that have them notice a considerable difference. Not many have them as they are pricey.

Fafafofi

My buddy swears the viper throttle body swap on his 2009 JKU was the best for throttle response. I'll be in the market when I get some extra cash

BigSeanE

Get a Superchips flashpaq and a sprintbooster. You'll even dust a 3.6 off the line.

Biginboca

I had the viper throttle body on my 2011 for about 18 months before I pulled it off. It made absolutely no detectable difference except occasionally making the yellow lightning bolt come on and my jeep acting like it was in limp mode.

Do yourself a favor and don't waste a penny on any throttle body or throttle body spacers.

BFGMallTerrains

Just regear to a performance level for your tire size n be done with it. You WILL feel incredible throttle response. Thought I saw Jesus in the road after pushing 3/4 throttle after I regeared