OBX03GT

I want to know how u can tell between a O/R H pipe and a OEM H? I bought my car and it has a H on it but i dont know if it is stock or not....it looks like there is O2 sensor adapters on it if that means anything.

lizzyfan

It'll still have the four cats on it, two a side

OBX03GT

If its stock it has the four cats?

Du510

yea.

4 cats: stock
2 smaller cats: aftermarket, catted
no cats: aftermarket, offroad

adam_ferguson

ya , you can't miss em. big dumb *** metal lookin things toward the front of the pipe. oh another good symptom of and OFFROAD h , loud as all hell.

handyandy

Also, I think an offroad pipe will kinda smell slightly like old school muscle, like old school exhaust where you smell like car smell

but yea: 4 cats: stock
2 smaller cats: aftermarket, catted
no cats: aftermarket, offroad

Gar4pt6

on both the v6 and v8 you can see the 4 catalytic converters on the left (side bolted to stock manafolds)

http://www.miracerros.com/mustang/pipes_V6_V8.gif

this is what the CATS look like with a hi-flow aftermarket midpipe

http://www.v6mustangstuff.com/images/05magnaflowx.bmp

offroad H pipe with no cats

http://jdsperformance.com/images/maclthp.jpg

OBX03GT

Thanks for all the help.....i didnt know because i havent had the car that long...and looked under the car and seen what appeared to be a H pipe LOL....thing is i think the previous owner hollowed out the cats.....how can i tell for sure he did? its hard to get under the car in my yard but them cats are hotter then sh*t when i touch em and the pipes arent as hot.