BCobaltSS

Hey does anyone know when installing the GMPP manifold if you have to use both of the manifold exhaust gaskets . When I bought part number 9230949 which is the manifold gasket, it came with 2 gaskets . Are they like shims and you have to use both or just one.

I'm going to install this tommorow and I want o make sure I don't screw it up

bump

fr33k

It should be 2 metal gaskets that are pressed/formed together. Mine had one with some holes in it and the other side had tabs that went inside those holes and folded over. Kinda connecting the 2 together. You can seperate them but they are supposed to stay together.

BCobaltSS

ok great thanks man did you put one on yours and did you feel a difference.

fr33k

Yea. I didn't really notice a difference though. Peeps on here says it's about a 4hp/6tq difference. I dont drive mine hard so that might be the reason I didn't feel it. My wife's the one with road rage lol. She'll race anyone

BCobaltSS

did you do the install yourself and was it a hard install and how long did it take you?

wdsoccer

i tried to install my CA header (it didnt fit so i put the stock manifold back on) it wasnt very hard. the longest part was waiting for the engine to cool down before you take the manifold off.

fr33k

It was installed by one of the techs here at the dealership I work at.

BCobaltSS

do you know how long it took the tech and do they give instructions with the manifold from GMPP

fr33k

The manifold I received didn't have any paper work with it. Nor gaskets. Not sure on the time. He done it while doin the TSB on the timing chain. I'll go ask though . He's just right outside my door . Will post in a sec on time.

edit: He said that he had troubles with one of the studs stripping out so it took him about 45 min or so.

BCobaltSS

cool, what TSB are you talking about for the timing chain. Was it for the regular SS no the SS/SC

R&C_rallySS

Search for: Secret TSB You will find it, the title is something like Secret TSB you all should know about or something.

BCobaltSS

intersting on the TSB but mine is an 05 so 06-07 are only effected.