Just got the fastman on for my friends 4.0 TJ

difference was VERY impressive, the only thing changed was the TB, the stock tb was spotless, so the difference wasn't simply because it was clean, and we didn't replace the IAC/TBPS or anything like that, so just a bolted swap and plug

theres a, i guess you could say moderate boost out of the hole, but the biggest thing we noticed was that it didn't feel neutered after 3 grand where prior, at 3500ish or so on up, it was just pitiful

anyway, just thought i'd pass that on

for 160 (190 minus 30 dollar core) I'd def. say it was worthy of being swapped

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03 Renegade (Black)
177k miles 3.7L gas - 45RFE
Command Trac / 4.10s
Lift: ft. 790+ rr. JBA4+
The last of the TrailReady Front&Rear Bumpers and TR Rock Rails
Jarhead Offroad light covers
31x10.5R15 RedLetter Grabbers on Blackrock Dunes
L.O.S.T #KD098632