Motoria 4-2-1 header quality Q's?
QUOTE (blu_drgn)
So you would just cut out the test cat and weld a highflow in its place?
I only suggested the high flow cat because the test-pipe/cat could cause you some grief for emissions & whatnot... could be a lil' loud too but you should just see how you go with it on first (if you get this setup).
If you look at the pics you'll see the test-pipe/cat is actually a separate section on it's own, with a 2 bolt flange on one side & for some reason a 3 bolt flange on the cat-back side (presumably to cater the cat-back more for RD2s?)... Just get the shop to use the same type of flanges on the high-flow cat if you get one... that way you can just swap them over if you want to.
The test pipe that these headers come with WILL make you throw a cel. Been there done that, before I got my high flow CAT. It is also loud as hell and kinda tinny sounding.


