billy42017

i don't have them on my stang but my buddie has them on is 89 gt. he said its not worth it unless u don't have emissions in ur state cause it bypassed all his emissions stuff. but i don't know a lot about underdrive.

w8less

i agree its not that big of a hp increase at all and i have the BBK set. i checked into buying a better alt and they said my car already has a 130amp. After a while it gets annoying when ur sitting at a stop light and lights are always dimming or when its summer time and ur sitting a stop light and u have to continuously rev ur car so ur ac actually works. i would say buy a set where u don't use the alt pulley or use ur money towards something that gives u more than a couple hp increase.

blkgt50

I know that they were talking about pullies. I had put the pullies on my 92. I haven't put any on my 88 (h-pipe). I was just saying that you could feel it even if you just put the pullies. I'm sure if you put both you could feel the difference. One is good both are better.

EGSRacer

They make a great add-on when you are adding them along with a few other upgrades, 2 - 5 hp here and there will add up eventually

stanglx2002

every HP counts in the end

89Convert

absolutely

tomabram

yes, but the mod is not worth it.

blkgt50

we like it so keep your money in your pocket and when those 5-10 hp help us kick you a** then you'll want to spend the money to get some.

tomabram

Sorry but 5-10 hp wont do sh*t to kick anybodys ***. Save your money for some real mods.

Quik

for the price its worth the gain, its alot better then buying a expensive CAI