[Jayota]

For 91 pickup - 3.0L. I heard it was 2.25", wanted to make sure I ordered the right cat and muffler for my new catback im getting bent up.

 

[rogerman]

nope. 1 7/8" i think. or a bit bigger. i know 22re is 1 7/8

 

[silvers000]

I can't remember, but I think it's either 2" or 2.25".

 

[Jayota]

Hmm. anyone else have any idea?

 

[Dave102429]

It's 2.0".

 

[shoes1382006]

i dont think it is, i think its 2.25

 

[Dave102429]

Well...my stock exhaust is 2.0", from the left exhaust manifold to the muffler. One of the first mods I did was buy a 2.25" Flowmaster muffler and my exhaust guy did an excellent job of welding in the gap.

 

[Jayota]

Looks like its 2" from the cat back.

Bought new 2.25" muffler and cat (and new pipes). Going to get it installed this week

 

[Vicoor]

Actually, Toyota pipe diameters are metric. So it's not 2" or 2.25"

I have not measured V6 exhaust but it is bigger that a 22RE.

I'd say it is likely that it is closer to 2.125" but that is just an estimate.

 

[Jayota]

Yay for no standard measuring system..

vicoor wows me:clap:

 

[Vicoor]

I think if I was having a custom exhaust made, I'd be looking to up the size a bit from stock. 2.25" at least, but probably not bigger than 2.5"