questions about exhaust

does anyone know anything about a 76 firebird formula exhaust kit i am going to redo it myself since its a 76 do i have to have cats???? and how long the piping be after the headers that lead into the glass packs? and is there a site that anyone knows that sells piping? thanx

jegs sells dual exhaust kits that come with everything even mufflers if you want them

there site is www.jegs.com

and im pretty sure you dont need cats but if you go through air care and they say you need them go grab a pair and hollow them out to flow just like normal piping

hey this is the set http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=112554&prmenbr=361

yeah open them up and gut them and if u cant gut them, weld a peice of tubing right through the cat so no exhaust gets into the honeycomb web, that way its like a strait pipe through the exhaust,

on the headers i know that hooker are the best but how do the compair to summit headers i have heard that they are pretty much the same but i would be paying for the name with hooker and summit uses the exact layout as hooker is this true??

probably but its how they are made

like hooker comps are made with 16 gauge metal so are flowtech but flow tech is cold roll

i dont know what that is exactly but i would go with the hookers if they arnt to much more

the competition headers are only like 150 usd for most applications for older cars

there like 160 or so for hooker but for summit there 62 so saving alot well kinda alot

well then go for it and save some cash

If want a really good full kit I would suggest Performancy Years exhaust:

http://performanceyears.com/exhaust/

If you get the headers from there (Dougs Headers) which happen to be the same as Blackjack and Hedman I believe here is a link on installation to a first gen, it may be helpful to you or not:

http://www.classicfirebird.com/headers/header.html

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One thing if you use the cross pipe (best design) your exhaust will be a little quieter so if you like a really loud type of exhaust you'll probably want an H pipe but it will hurt performance a tiny bit.

one more question where can i get flowmaster muffler that will bolt right up to headers my grand father races with an old el camio and he has a set he likes to use so he can hear his motor when its runnin when he races he takes them off but he told me that there real inexpensive like 70 bucks for the set and i never see him now that race seasons open anyone have a clue the have pipe pre welded like a foot long with the d ring so it will bolt right up summit or jegs doesn't have them can anyone help???? thanx

flowmaster dosent make one of those

but what you could do if you wanted to get flowmasters is just before the mufflers somewhere weld this in http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=102162&prmenbr=361

or get a flowtech warlock muffler if has the same thing built into the muffler

flowmaster dosent make one of those

but what you could do if you wanted to get flowmasters is just before the mufflers somewhere weld this in http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=102162&prmenbr=361

or get a flowtech warlock muffler if has the same thing built into the muffler
are you sure they don't make one of those my grandfather knows more about cars than anyone i know and i seen his set the had flowmaster indented on them do you know if they made them at one time?

The problem with header mufflers is they tend to hang pretty low and get banged up a lot. If you wanted that try an exhaust cut-out. I think the 70 or 72 GTO had it as the "Tiger" option. Pull a switch and it opened up right after the headers/manifolds.

where can i find that at?

petereggy posted a link.

no the exhaust for the 70 or 72?

It was just an exhaust cut-out. The Humbler video, listen to the sound.

http://www.pontiacpower.net/video2.html

what do you mean the exhaust for a 70 or 72?

header mufflers are glasspacks and get screwed up because they are so low

exhaust cutouts just after the headers have free flow so that you can bolt the flange back on for street legal

if your not looking for glasspacks or exhaust cut outs i have no clue what you are looking for