exhaust question

[bnasty1031]

i am planning on doing a custom exhaust pretty soon and i thought i had it all planned out, you know the regular, cut out the resonator and put straight pipe, y bracket into two flowmaster 80's. but then i had an idea. i just want opinions because i saw this on a 350z n was wondering if it will work on a grand am. from the manifold add a small straight pipe into a y pipe a cat at the end of each pipe and straight pipes all the way down and a 80 at the end of each straight. i may be completely stupid and saw it wrong and if i am being stupid dont b afraid to tell me because its prolly been done b4 or cant be done but jus want some opinions on what you guys think.

[jonnythan]

Why would you want two cats? What's the point of that setup?

[spy]

two cats redundant and pricey added expense for no reason.

[bnasty1031]

i see yea didnt now what to think of it jus got bored one day and thought up a random idea oh well thanks guys but another question for cusom exhausts if you took it into the exhaust shop i would want to tell them to cut out the resonator, add a straight pipe, weld a y pipe at the end, and add two 80's on there correct?

[Blackhawk]

Transverse 80 with dual outlets, two mufflers won't fit too well and you may have to give up clearance.

[Gagt518]

You dont need 2 Flowmaster 80's. All you need to do is buy 1 80 series, since its single in and dual out. We have V6's not V8's :lol:

[PontiacGT201]

You dont need 2 Flowmaster 80's. All you need to do is buy 1 80 series, since its single in and dual out. We have V6's not V8's :lol:


Well what if he put a V-8 in his GA like the one with the hemi:lol:

[GA_GT1]

well speacking of exhaust questions ... not to hijack the thread but what degree bend are needed and what kind of benda are best, i know theres 2 diff kinds but cant remember what they are, sorry.

[GtAudioFreak]

You dont need 2 Flowmaster 80's. All you need to do is buy 1 80 series, since its single in and dual out. We have V6's not V8's :lol:

You only need one.

http://i58.photobucket.com/albums/g253/grandamgtblk99/th_Picture006.jpg (http://s58.photobucket.com/albums/g253/grandamgtblk99/?action=view&current=Picture006.flv)

[infernus]

hemi:lol:

QFT.

[Blackhawk]

well speacking of exhaust questions ... not to hijack the thread but what degree bend are needed and what kind of benda are best, i know theres 2 diff kinds but cant remember what they are, sorry.

2 90 bends and 4 45 bends, there are three bend types, mandrel (best, interior diameter stays the same), crush or pressure bending, inside edge is pushed in a bit (normally what shops will do), and crinkle bending, where the inside edge is made by pushing in areas to make the desired angle.

[GA_GT1]

thank you for the info, the reasonm i asked was no shops around my area have a madrel pipe bender but the local parts store can order pipe in any size bent however i needed it. Thanks again.

[tjsoulsby]

just off the top of my head, the reason there would be 2 cats right after the ext man would be so they can run a true duel exhaust and not have a section where they would have to have the two pipes from the manifold meet just for a cat. it would not surprise me if they were running a X-pipe duel exhaust on the 350Z. for instance, my other car, a 2001 crown vic(with the handling and performance package) has a true duel and it has the same setup only i have a H-pipe exhaust. just a thought

[bnasty1031]

You only need one.

http://i58.photobucket.com/albums/g253/grandamgtblk99/th_Picture006.jpg (http://s58.photobucket.com/albums/g253/grandamgtblk99/?action=view&current=Picture006.flv)

thats with 1 80?

[bnasty1031]

but is everything else i said bout the custom job right except get 1 80 and not 2?

[GtAudioFreak]

Mine is 2.5 inch piping from the downpipe back with a hi flow catalytic converter, and 1 flowmaster 80 series muffler.