To add cat or not

[rpm620]

ok reason for this post is to get some idea's... I live in VA DC area where we do have emissions... now.. i can take care of that if i dont have a cat.. anyway.

Current exhaust setup

SS longtubes
2.5" exhaust all the way back
Magnaflow 6"x15" center muffler
Vibrant 2.5" in / Dual 2.5" out

now... should i add a 2.5" cat or not? im not sure if adding one will hurt the performance of the car or help it.

Motor:
M50
S52 cam's / Trays
intake
TMS chip

also i will say that to some of my friends they tell me it feels faster then my 95 M3 i had.. now idk if that is because of the weight diff but i know the M50 is only rated for what 180hp? but dont really know how much the cams hp the cams are getting me.


Any ideas?

[LowR3V'in]

As far as performance a cat. converter won't restrict shit. ;)

[rpm620]

As far as performance a cat. converter won't restrict shit. ;)

If i add a cat should i take out the center muffler?? i know the cat will change the sound of it and i could pass emissions the right way.

[LowR3V'in]

It's up to you.
I like a quiet car myself.

[Voluted]

It should slightly reduce rasp.

[BMW_TUNER]

I ran this unit which is nice because it is an x-pipe as well.

http://www.summitracing.com/parts/MPE-94008/

My system is dual 2 inch from the headers to the cat then dual 2 unch back to E36b M3UUC muffler.
I am having a resonator put in soon to knock down the drone.

[Wh33lhop]

I'd add a cat if I were you. It's just stupid not to, you pollute literally ten+ times as much without one and you really don't gain more than 1-2hp.

As far as power, you're probably around 190whp, maybe a tiny bit more.

[xwill112x]

i wouldn't put a cat on it if i liked my current exhaust note, its its just meh then do it...hopfully it'll sound better. lol

[rpm620]

ya my exhaust does sound good... its loud as hell but it sounds good.

[flyboyx]

man, if i were you, i would install the cat. the reasons mentioned above should be good enough reason to do it. i'm not a tree hugger, but why be selfish and pollute the environment like that when you don't have to. what happens if down the road, the pencil whipping shop that gives you a pass goes out of business?

[evil_twin]

fuck the performance mikey, add a cat its not a racecar... yet. :)

[rpm620]

well ya this car wont be a race car its the DD..