OSU4Runner

I did some searching, but couldn't find an answer....Does anyone know the stock exhaust diameter for a 3rd gen 4Runner? I'm going to buy a aftermarket muffler this weekend, but I'm not sure on the size of the inlet and outlet. Thanks....

okie81

1 3/4 I believe?

Godzilla

hmm...i searched this sub forum with the words exhaust size...

https://www.yotatech.com/forums/f2/d...runner-159407/
https://www.yotatech.com/forums/f2/e...-size-150427/]
https://www.yotatech.com/forums/f2/m...-sorry-136700/
https://www.yotatech.com/forums/f2/s...3rd-gen-89150/

Elton

it's like 2.25''

okie81

Thanks for the clarification Elton

JC_ez

It's metric. The closest pipe size is 2.375 OD and ~2.25 ID.

OSU4Runner

Ok....thanks guys, I think I'm gonna order the flowmaster 50 series SUV.

GoHideTheAsian

you know you can weld a piping to the inlet and weld a bolt on plate it really doesnt matter. mines a 3inch in and 2.5 dual out.

xjsqared

How do you like the flowmaster? and did you just re-use the remaining tailpipe, my muffler is crumbling and tailpipe looks nasty. I am thinking also either a flowmaster or magnaflow 18" who knows maybe even dynomax still, but the tailpipe is the problem, to go stock replacement or other, how much should a muffler shop be...sounds expensive, I need bang for buck at 260k.

GoHideTheAsian

no i got dual out its just turn downs so its pretty loud. just get the turn downs if your tailpipes out the garbage