johnny89345

im just wondering if anyone knows if this 3inch piping will bolt directly to my stock cat bec i dont want to cut the old exhaust then it doesnt fit and also whats the easyiest way to install this or are there and probs i should look out for. also i have factory dual exhaust and single cat

tony_cogliandro

iTrader: (3)

your stock cat is 2 1/4 inch out so you can get an adapter and make it fit, but why? spend 130.00 and get the carb approved 3 inch in and out cat.

johnny89345

i know my rs was thaat size but the piping looks much bigger on my 350tpi iroc. i dont get why they say direct bolt on if im going to need to buy adapters

johnny89345

ok it was a direct bolt on. no adapter was needed it was just kind of annoying hooking all the pipes up by myself bec there only held on by 2 brackets near the muffler but overall very easy to swap and sounds amazing when i get on it it turns heads all over

tony_cogliandro

iTrader: (3)

when they say direct bolt on they mean all the pipes are the right size. the dual pipes out the back are direct and so is the muffler into the stock position. the the ss pipes from the muffler, over the rear end and down the drive shaft and bent into where the cat is - is a direct bolt on. but its still a better 3 inch system and it sort of anticipates you will have a 3 inch system to bolt on to - like 2055 headers into a 3 inch y pipe into a 3 inch cat, but if you dont, well it will directly bolt up to the 2 1/4 with a single adapter. the important thing is the car back is a direct fit.

johnny89345

no i know what you your saying but for some reason my factory iroc exhaust was 3 inches so it reallyy was a direct bolt on

Jay

iTrader: (2)

Stock 87 350 exhaust is 2 3/4 not 2 1/4

89ROC-Z

iTrader: (7)

I know it's no help but i got the Magna on two nights ago and i LOVE the sound!! It's a nice rumble in the lower RPMs and when i reved it to 4500 it really roared lol.

ken.bradley

Nice pics. I just ordered mine, can't wait to install.

5-0 Blackbird

Looks good man, now where's the sound clips?!?!? lol. I'm thinkin about goin with a Magnaflow on my 87' Firebird, but I'm not sure. I've heard some people say it's too quiet and others say it's awesome. I could only find a few vids of the exhuast idling + some revving, then under low throttle and then at WOT, so if ya could get around to one of those kinds of vids, that'd be awesome, but even a plain old clip would be great. Anyways, lets hear it roar, lol, nice Camaro by the way.

tony_cogliandro

iTrader: (3)

jay i will remember that. thanks.

johnny89345

i went from american thunder to magnaflow and its efinitly louder. the flowmaster sounds like every truck on the street magnaflow is a much different sound when you are driving it and no droning at all