I was thinking about buying megan racing headers along with High FLow Cats but I already have an Invidia Pro N1 Exhaust. Do i even need to purchase a High FLow Cat?

 

the cats are the biggest known choke point in the cars exhaust so if you are looking to get better flow out of the exhaust then yes I would say go for it, those are the next mod coming for my car

 

It only makes a difference in the northeast....

 

buy cats

skip the headers

 

I agree with Z1. Thats what i've done. You will notice the cats, but in the end, simple bolt-ons arent worth the money if you're only looking for a highway car.

 

I needa clear this up. I mite be wrong. But I think op thinks catbck exhaust means including cats?? Atleast thats how it sounds. Don't get headers.. Get hfc.

 

cats make a big hp difference and HUGe sound increase

 

No HFC are NOT included in a cat-back exhaust system. (that's why
cat-back) Don't sell your OEM cats you may need them to pass smog. Do
they have smog in the north east.... Magnaflow has HFC that are
legal to replace ORB II cats, they just became available. Us members in
CA. have to be concerned about such things....smog police....air quality....fines in excess of $1K....plus possible impound....Ouch!
Gary

 

ok i understand about the hig flow cats now. But what about the Y PIPE?

 

New York dsn't have smog. So don't worry bout that. Y-pipe. U gotta make sure the exhaust your ordering comes with a y-pipe or x-pipe. I just ordered an exhaust and it dsn't come with a y-pipe. I thought it did. I'm lucky I already have a stillen y-pipe tho. And it is big enough for my exhaust flow needs according to the person that sold me it. A trudual exhaust. There is no need for those are always a full cat-bck exhaust.

 

^ a true dual exhaust doesnt use a y pipe (I think). What kind of exhaust did you get?

 

OP,

the exhaust, as you stated are cat-back. In short, yeah. It would make a difference. If you really want to feel a difference, I'd suggest test pipes but they can be a pain if you want to keep your car smog compliant.

 

i have an Invidia N1 Exhaust which is single piping. So im either going to purchase a Megan Racing Y-Pipe or Megan Racing Headers im not sure which gives more power?

 

smart people have already replied in the thread as to what they suggest - you should follow what they say

 

lol

 

I thought we had a Z pipe?

 

when it comes to headers, dont get low quality.

 

Does anyone have a recommendation for High Flow Cats that don't have a crappy raspy sound to them? Also, are there any that sound good and are legal?

 

LOLOL. Thats great.

 

def gets the cats, headers really dont do anything, the price to hp range gain aint worth the money