evo462

iTrader: (27)

I have a 2002 Camaro that I purchased some turbo plumbing for. The passenger side of the plumbing connects to "a factory LS1 fbody exhaust manifold". I no longer have my factory manifolds and will have to buy one for the passenger side. Before I do, I wanted to know if the overall geometry of the manifold changed over the years because if so, it might affect what I need for this plumbing. I've seen pictures of the 2 manifolds side by side, and there are slight shape differences, but I couldn't tell if the flange would be in a different spot between the two types. Would you be able to pop a 98 manifold in place of a 2002 and connect it to the same factory Y pipe with no fitment issues?

Thanks!

ibex37

iTrader: (6)

i could really use this info too!!! anyone care to help out. EVO462 did you get any more info on this you could post?

s346k

iTrader: (4)

the pass side is definitely different between 99 and 01+. not sure of 00. i replaced my manifolds with ones off an 01 car and had to have the y altered on the pass side in order for it to work. i believe the newer manifold exits farther down than the older one, but don't quote me on that.

TransamGCS

iTrader: (2)

i believe their is a slight difference between the two stock manifolds the 98-00 have egr provisions on the passenger side 01-02 have no egr

LS1121

iTrader: (17)

98-99 manifolds are the same and the 00-02 are almost the same. The 98-99 use different cats and Y-pipe than the 00-02. Either will bolt up the the motor.
The simple answer to your question is No.

Paul Bell

iTrader: (9)

Wasn't some years stainless tubing and other cast?

LS1121

iTrader: (17)

Yes 98 & 99 were tubing and the others were cast.

NVR_SPDS

iTrader: (39)

The 01-02 Manifolds still have the bosses for the EGR, they are just not drilled/machined to bolt up the EGR pieces to.

Paul Bell

iTrader: (9)

Thanks LS, I knew there was something about them.

I think advantage to 98/99 manifolds for being a bit lighter in weight and perhaps the internals being smoother.

Roel Aguilar

iTrader: (3)

Besides the EGR differences, are they physically the same? For example, will an 02 Y Pipe & 02 cats bolt up to 98 exhaust manifolds?

Thanks

Paul Bell

iTrader: (9)

Yes, the outlets are in identical locations.

blown97ss

iTrader: (8)

Same spots different angles u won't be able to bolt up a 98-99 y pipe to a 00-02 manifolds or vise versa. Atleast for the passenger side. Drivers side are the same for both.

Roel Aguilar

iTrader: (3)

Thanks, that's exactly what I was looking for.

Paul Bell

iTrader: (9)

There was a thread a long time ago, I can't find it now, but this guy was using a 2000 Y-pipe on a 1999 car-it worked.

I looked up the part numbers and blown97ss sure is right, they are different.

I stand corrected. Roel take note!