Down Pipe
 

on a 2002 24 valve what size are the 2 bolts on the factory down pipe, 1/2 inch or 13 mm?(head of the bolt)

Mine are not stock but im sure someone can help ya

Whichever socket fits on the nut....

Cant rememeber off the top of my head but I can check for you tomorrow.

I believe they are 13mm

The ones that come up from the bottom and hold the exhaust in place on the flange are M10 X 1. This is out of a 99 parts manual though so as long as nothin changed there.

they are 13 or 14s i cant remember, but i know they are metric

Mine are 15mm heads,they're stock.

I popped the hood last night, stood on a milk crate and a 13mm socket fit perfect on the 2 bolts that attach the down pipe to the turbo flange. Either way, it's between 13mm-15mm & 7/16" - 5/8". :run: