90Mustangfan

Do you really make the Hp that the companies say? for instance Mac CIA fenderwall kits, its says youll make 14.5 dyno proven horsepower? And do you really gain 20 hp from headers, and 10 hp from H-pipes or X-pipes? im not sure on these topics, but has anyone dynoed gains from header and pipes and CIA?

619socalstang

the only real numbers are the header #s but there is no way youll gain 44.5 hp from thoose mods thoose mods plus a good set of heads would prally get you 60 hp or a lil more.

mustangman

on factory rateings, those are the #'s that they got under the BEST conditions with BEST match up to engine, heads over all componets. of course the consumer does not always have the same motor and parts as tested, however you gain quite a bit from each of those app.'s

bobby

mustangman said it!!!!!!

USAMuscle

The numbers for LT headers is definitely right, and has been dyno proven many times over. I think it's possible to gain about 10 HP from an off-road X-pipe or H-pipe because all those cats are pretty restrictive, but I think it's more likely if you have an aftermarket cat-back as well. Then I could definitely see it happening. The CIA numbers are pretty much bull, and you shouldn't expect more than a few horses, unless you get a complete fenderwell to intake kit like the densecharger kit.

bobby

how much hp increase do u think when i had totalty stock exhasut and i went to mac equal length headers, bbk o/r h pipe and 2 chamber flows with dumps???? and how much hp do u think im making with the mods listed below thanks

619socalstang

you prally picked up 25-30HP with all the mods 250-255 hp total

Obsol3te

I wouldnt go that far, 619...
I say anywhere from 230-240hp
at the fly
a stock 87-93 stang came with about 200-210 Flywheel HP
thats like around 180RWHP

619socalstang

OK i was thinkin it had 225 stock, my BAD

Stinger

No the mustangs didnt come with 210 hp at the flywheel. Some did but most came with the 225 to the fly.There is like 1 or 2 years with the 210 hp ratings.But i do know the 93 year was only 205 hp. Here is a web site with some facts about GTs. Check it out.http://www.mustanggt.org/93gt.htm:)