tasilver

iTrader: (2)

I Have A 99 Ta And I Am Having An Obx Header System Installed. Over All The Kit Is Very High Quality From The Doughnut Gaskets To The Header Gaskets. My Only Problem Is What I Thought Where Cats Are Actually Resinators. The Guy At The Performace Shop Said My Car Will Be Very Loud. I Already Have A Magnaflow Cat Back System On The Car And Thought It Sounded Nice. I Know I Can Pass The Inspection Since My Buddy Owns An Inspection Station And The Resinators Look Like Cats. Does Anybody Have Any Suggestions. Thanks For Any Info.

jimbo98z

iTrader: (3)

What exactly do you want answered? I'll take a stab though...

With resonators where the cats were, it shouldn't make it too much louder, but it will get a little raspier.

tasilver

iTrader: (2)

I Just Wanted To Know If There Is Huge Difference In The Sound Of The Exhaust Without The Cats From Anyone Who Has Removed Them Or Has A Similar Set Up. Thanks

CHRISPY

Let me know how you find the system. I am interested to hear how it works for you. Are you going to dyno it?

NHRAMAN

iTrader: (1)

if u have lt's--go no cats..if u have stock manifolds--go no cats...pretty simple---guy at shop--------what does he drive...a rice burner....too loud my ***. ------------------------------------------just read again...WHY RESONATORS AT ALL..?????

brad8266

iTrader: (23)

No cats if you dont have to pass a smog sniffer test. I have gutted cats with a straight through pipe welded in them in case i ever need a visual or cops gimme ****.

tasilver

iTrader: (2)

I will try to dyno sometime in the near future. I am also Having a 3:73 rear put in at the same time. I guess I will just have to wait and hear the car for myself. If I like the sound does anyone know which sponser site would have the O2 sims so I will not have the ses light on all the time. thanks

brad8266

iTrader: (23)

get the codes for rear O2's deleted out, screw the sims

sickws698

iTrader: (2)

With out cats it will make your car alot raspier!!! but better flowing. some guys gutt there cats and will weld in straight tubing.

brad8266

iTrader: (23)

I did that.

S99TA

I have long tubes with an off road Y pipe and a edelbrock muffler and it sounds good and not that loud till you push the long skinny pedal to the floor

Dr. Jeckel

iTrader: (12)

Get the magnaflow metallic spun-cats. The flow like 570-590cfm a piece. I had them when I had macs and loved the way the exhaust sounded with the open cutouts(no rasp). I switched to LT's and ORYP and am just saving to install another set or the magnaflow cats.
5rwhp or nicer sound?....me, I'll chose the nicer sound

BirdmanLS1

iTrader: (3)

Get the metallic cats from EADPerformance. They actually lessen the sound less than alot of bullets. I think they reduce sound by 3dB's, wheras the dynomax bullets im have reduce sound by like 4dB's... and will sound much nicer and deeper. Plus they flow 570-590 cfm like stated ^^, which doesnt even restrict hp till like close to 500 hp. And then u dont have to worry about being illegal or passing emmisions... somethin to think about.

lsx24

iTrader: (45)

If you don't want to spend the money on the metallic core, just get the Magnaflow cats that are ceramic core. They are only around $50 each and will not cost you more than a handful of hp. It's better to run cats imo because of less rasp, less smell of gas, and cleaner emissions.