ULTIMATEORANGESS

iTrader: (4)

i just realized my KOOKS y is gutted so im thinking i wont gain much. i was hoping to get this done now im not sure.

ULTIMATEORANGESS

iTrader: (4)

has anyone tested this part yet?

maxpower_454

iTrader: (7)

Damn, too late for me... I really do hate the rasp from the old one but if I did anything, I'd probably go TD.

MarylandSpeed

iTrader: (11)

These are in stock and now shipping!

1 of 44

iTrader: (1)

Just ordered it, Lets hope it fits well. Thanks Maryland speed!

2002 Trans Am

What kind of cats are they using?

I have QTP badged headers and the aluminum Y pipe is / looks like a pile of crap. I'm likely having Mufflex make me a SS Y and I might as well swap out the Catco cats I'm currently using.

RedDeadG8

iTrader: (3)

i believe they are Magnaflow metalicore cats.

Did anyone ever do a hp/sound comparison between the old y-pipe and new?

I might just keep my older version and custom fit a Vibrant collector in its place.

BOLO

iTrader: (40)

I have their 2"x3 1/2" LS headers for the Fbody, do they make a 3 1/2" to 4" merge Y pipe?

RedDeadG8

iTrader: (3)

bump for some info on hp/sound difference between the old and new version

1 of 44

iTrader: (1)

i can take a sound clip once mine is on with the new merge, (hopefully by the end of this week or mid next week). It will be Kooks 1 3/4 LT's and the offroad Y going into a slp LM2....i may know someone running the old version with a gmmg if youre interested

MarylandSpeed

iTrader: (11)

Just a bunch more of both types in!

If you order the links below, the new Y-pipes are sent-

http://marylandspeed.com/kooks-3-off...02s-p-702.html

http://marylandspeed.com/kooks-3-ypi...2ms-p-701.html

2002 Trans Am

Does anyone know the diameter of the kooks cat?

I like the Magnaflow Universal 99659HM, but I'm afraid the 5" diameter is too wide to fit just off the headers

There is also the 59959 which is a 4" diameter

What is the difference between pre-OBD2 (59959) and OBD2 (99659)...does it matter for us?

1 of 44

iTrader: (1)

Here is what the offroad y with the new merge sounds like with 1 3/4 headers and slp loudmouth 2 catback

https://www.youtube.com/watch?v=Wdje...ature=youtu.be

BruGTP

iTrader: (3)

Another clip for anyone interested. Huge fan of the new merge. Sounds fantastic with the Kooks 1 3/4 headers and Magnaflow catback. All of the jackhammer light acceleration noise from the previous "T" merge is gone and replaced with a clean burble. It's a little harsher than with a dual 3 inch to 4 inch Flowmaster merge I've also ran but this had much better fitment and I can use the Spohn straight crossmember and this exhaust with near factory-like ground clearance.

MarylandSpeed

iTrader: (11)

Looking good!

99'CajunFirehawk157

iTrader: (57)

Wondering how the fit is under the drivers side floor brace where other Y's have been known to hit?

MarylandSpeed

iTrader: (11)

We have not had a complaint!

MarylandSpeed

iTrader: (11)

We have a bunch of the catted systems in stock we would like to move. If interested, call us @ 443-730-9428 for a great deal!

RedDeadG8

iTrader: (3)

has anyone logged any performance increases with the new design over the old design?

Tang2

I went from their old design with cats to the new ORY. I will have it on the Dyno this Saturday to see if there was any change, but I'd imagine most will be from the cats. I'm expecting 5-7 hp, but I don't imagine more than 2-3 of that (if any) will be from the new merge. I will say that I don't notice any rasp going from the old catted Y to the new ORY, which I was pleasantly surprised by!