sheaadams86

02 has stock manifold aftermarket y pipe and catback exhaust

And I wanna put it on my 99

Both r z28 with stock manifolds

Will it direct bolt or issues? I read that 99 won't fit 02 but it didn't say anything bout vice versa

I'll just be getting the y pipe and catback from 02

AmarilloWS6

iTrader: (3)

I couldn't tell you bud but I know in 2001 GM put less restrictive manifolds on our engines if that has anything to do with it.

moeZ28

iTrader: (7)

Should fit just fine...I dont see why it wouldnt.

99Bluz28

iTrader: (35)

The manifolds on the 02 don't have EGR provision , so you won't be able to use the EGR on your 99; if it maters.
Beside that it should fit just fine.

TransAmWS.6

Should definitely fit, the stock diameter exhaust components on the 98-02 cars are all interchangeable from what I understand.

2xLS1

iTrader: (25)

00-02 y will not bolt up to 98-99 manifolds. Pasenger side 98-99 manifold exit is in a slightly different location than 00-02. The different cast iron manifolds started in 00, not 01. All 98-99 exhaust components will interchange. All 00-02 exhaust components will interchange physical location wise. 00 manifolds have the EGR boss drilled and tapped. 01-02 manifilds have the EGR boss but not drilled and tapped.

sheaadams86

Is this something simple that an exhaust shop could cut and weld to fix?

z-maro

iTrader: (18)

Not to thread jack, but are the cats in different locations too? My dad just bought a '99 and one of the cats is under the car (like on the V6), where both of mine were attached directly to the manifolds.

2xLS1

iTrader: (25)

98-99 drivers side cat is in same location as 00-02, bolted directly to manifold. Passenger side cat on 00-02 bolts to manifold separate from the y-pipe but on 98-99, pass side cat in an integral part of the y-pipe.

sheaadams86

What if I can get manifolds with rest of exhaust? No issues then? I have already done air pump and egr delete on my 99