Stock Y Pipe Question

[jnxV6]

I was wondering what the outlet size of a stock Y Pipe is in a 94. I saw someone said 3" for the outlet of a stock Y Pipe but that was for a 97. Is there a difference in sizes for the outlet between a 94 and a 97? Thanks

[badinfluenceRS]

Re: Stock Y Pipe Question

pretty sure it's still 3"...

search and see if i'm right

[loser]

Re: Stock Y Pipe Question

3.4 Y pipe is NOT 3" i think its 2.5 stock but im not 100% sure. search, your'll find it in 2 minutes.

[Fbody3400]

Re: Stock Y Pipe Question

IIRC it is 3 inches. When we did a straight pipe on the ole 3.4 it went 3" to a 2 1/2 reducer down to the catback.

[loser]

Re: Stock Y Pipe Question

im 99% sure its not 3". im pretty sure stock 3.4 y pipe is 2.5".

[ninety4three4]

Re: Stock Y Pipe Question

if this dosent get ansewrd by this thursday i will get underneath my car and measure it when i get home from school

[wolf]

Re: Stock Y Pipe Question

stock 3.4 y pipe outlet is 2.5, got one rusting away beside the garage :p
like the 3.8 the stock cat has a smaller (2.25) outlet

[BLLDOGG]

Re: Stock Y Pipe Question

all other measurement the same between the two engines?

[loser]

Re: Stock Y Pipe Question

all other measurement the same between the two engines?

from the s pipe back is the same, y pipe and cat sizes are different. and of course mani's and headers are way different.

[BLLDOGG]

Re: Stock Y Pipe Question

just making sure. I edited the FAQ