brandon_01_ta

current setup is Hooker lt's with a TSP ORY and Hooker catback.... i expected to have some rasp with the ORY but not as much as i got.... so i'm thinking about throwin on some universal cats on the Y pipe to smoothe it out some.. i dont really care if it quietens it down alot cause i have a cutout... as far as the cats ill prob get the thunderbolt high flow cats with the metallic core.... so who has done this and are u glad u did it?

Brandon35thSS

i done it and couldnt be happier. totally eliminated my rasp problem and still loud as hell. here is a sound clip.

http://www.youtube.com/watch?v=jDYDXfTPwJs

brandon_01_ta

thanks for the vid clip... sounds badass man
which cats did u use?

Brandon35thSS

thanks. i used thunderbolts.

brandon_01_ta

which ones... do u maybe have a link u could send me?

i was lookin on ebay and there a couple different styles of the thunderbolts.... the ones that have the heat shields and the other ones with no heat shields... i think they both have the ceramic core. and were they pretty good on fitment? i was just worried about them hitting the floorboard cause they are 4" in the center

Brandon35thSS

i dont have a link but they look just like the ones that come on a tsp ory. mine does'nt hit the floorboard at all. i got mine off ebay but i cant remember the name of the company i got them from. fitment is great and i had a local shop around here weld them in and it cost me 40 bucks.

nytmare1

iTrader: (7)

I did the same thing. ORY was too raspy and LOUD. So, I put some 3" Thunderbolt High Flow (metal core) stainless steel cats which eliminated the rasp and quieted it down to a low rumble at idle, but brightens up at WOT. I got mine from a guy on eBay. Just did a search and found a bunch of them for good prices.

You'll be happy with the cats.

LilJayV10

iTrader: (39)

Would adding a better merge eliminate the rasp or is adding cats the only way?

brandon_01_ta

ok well ive decided to get the cats then... here's the links for the two, does anybody know which is the better one?

http://cgi.ebay.com/ebaymotors/3-Cat...Q5fAccessories

http://cgi.ebay.com/ebaymotors/Thund...Q5fAccessories

brandon_01_ta

as for the merge.... a bad merge will give u rasp and having a good merge will help alot but not completely eliminate it... i used to have the flowmaster merge and it was really nice.... the merge on my TSP y-pipe is excellent so in my case a different merge prob wont do anything

xricer

where do you get a flowmaster merge? I have the pacesetter ory raspy as hell at certain rpms

brandon_01_ta

i had one on my last car and there was zero rasp... i bought my flowmaster merge from www.ws6store.com but u can also get them at summittracing.com and several other places

nytmare1

iTrader: (7)

The second link are the ones I have. Been using them for about 3 years with no problems.

slow ride 02

Did really help? I have a Kooks catted Y and really dont care for the sound.