are the performance gains from throttle body spacers and after market air intakes very noticable? are they worth the cost? wich brands are best?
troy 95yj 4.0

here is a good read... it's on a TJ though.

IMO the money spent to upgrade the intake isn't worth the gain. i would rather spend a few hundred dollars on something else. i have come to accept that jeeps just aren't built for power and i just go with it. i have a 4 banger and wheni bought it i was trying to get more and more power - but for me the best bang for the buck was regearing the axles.

Doc in AZ wrote:

IMO the money spent to upgrade the intake isn't worth the gain. i would rather spend a few hundred dollars on something else.

yep

I have the KN FIPK on mine. Not worth it.