[mcrews]

as long as you dont do 3" piping on anything under 600hp you'll be fine. 2.5" is pretty big in fact but its the aftermarket common.

Wait........you said that, then you tell him to go back to stock?????????


1. A rice muffler is not a "cat back" unless you are making things up.
2. You refer to a borla. Key word "system" . not a rice muffler......

3. Headers and aftermarket piping to an aftermarket muffler. Manifold back means the car still has the stock exhaust manifolds but has everything else. And NO you don't need catalytic converters to have a cat-back
really? When you say "catback' it implies that the product is designed w/ the cat in place . A ricer muffler is not a catback......
I said "A "CAT BACK" exhaust is an aftermarket system that is designed to keep the catalitic converter in place."

Never said it HAS to be there. as you seem to think........

As you tried,and failed to explain, a cat back SYSTEM is something that is installed from the after the cat and replaces the rest of the exhaust system.

While you may have chosen to replace your maifold and you cat, you did in fact install an aftermarket 'cat back sysytem' (or did you just bolt a glasspack on the end)

FACT: a rice muffler is not a cat back.
Meaning exactly what randomfact314 said he had "HEADERS ALL THE WAY BACK TO A GAINT CATBACKyou clearly stated that what he has is a Headers and aftermarket piping to an aftermarket muffler.

WHAT??????? seems odd to me but your descrption of what he has seem to match my dscription a hell of a lot better than his!!!!!

then you tell him to go back to stock.........

'stupid is as stupid does'

but what it always goes to show.........

there is a reason we do a-b-a testing on this forum.

That's so ramdon phrases with no source or proof aren't accepted as facts