God of Thunder

a friend of mine has an '89 GTA Trans am and wants to buy my LM. will it fit his car? and if so, would it sound decent??? thanks a lot

WILWAXU

iTrader: (6)

I would give SLP a call.

demonspeed

iTrader: (7)

Also make sure when you ask someone to mention if it has dual cats or not.

MachoCamacho

it should fit if its 3" piping, but it probly wont mount the same, might have to make custom brackets.

16nrollininaws6

I dont know....the piping might be routed differently, and I would say its safe to say the mounting points would be different. Just give SLP a call like WILWAXU said

God of Thunder

thanks guys. ill call em tomorrow

00BadaSS

my buddy has a lm on his 91 z. not sure what he did to get it on, i can ask him if u want but he has shorty's and it sounds really good

demonspeed

iTrader: (7)

You can get GMMG to fit a 3rd gen, so i'm sure you'll be able to figure some way to get the loudmouth on too.

you also might want to check out http:www.thirdgen.org

ninobrn99

iTrader: (8)

well fwiw i was able to mount a borla catback to my 3rd gen that came off of a 02 ss. it was a little offset, but then I read that it was normal....think im going to put it on my ta now.

riddler

iTrader: (4)

Yeah it will fit. It will be just slightly off with the brackets though. If you don't mind slipping the local muffler guy a case of beer he will just cut off the brackes and reweld them about an inch over for you. Piece of cake. I did it on my 85 IROC with Headman Headers and ORY. Sounds rather wicked....

God of Thunder

thanks guys. preciate the response. ill let him know. this is probably a stupid question, but would the stock manifolds off of a 99 fit on his 89? i just thought it would be a good way to gaurantee he had a decent sound and improve his performance a little. i dont see those old maniflods flowing as good as the newer ones. thanks a lot

demonspeed

iTrader: (7)

Absolutely not. The orginal SBC exhaust ports look like this ---> 0 00 0
Whereas the LS1 looks like this ---> O O O O (like a Ford)

riddler

iTrader: (4)

You can buy headmans and an ORY for $199.99

God of Thunder

ah, that makes sense. i thought it might be a good way to get rid of my old manifolds and help him out a little. thanks for the input!