Cats or no Cats

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Aug 22, 2007 | 10:52 PM

Mex02Camaro

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From: High Desert

Cats or no Cats

I have the LM II Catback and going to out some PS header's in. Question is should i get the Y pipe with Cats or ORY? I want to keep the sound it has already has. Is there a big difference in power between in no cats and high flow cats?

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Aug 22, 2007 | 10:55 PM

Tainted

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From: Indianapolis

high flow cats will loose maybe 5hp tops, and will help quiet it down some and keep out a lot of rasp. If you want all opwer, go ORY, but if youre going for sound go with a catted Y

Aug 22, 2007 | 10:58 PM

crazboy99

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From: Powder Springs, GA

do you have emisssion inspections where you live...that plays a huge role in what you want to do...might also effect if you can get LT's or not

Aug 22, 2007 | 11:04 PM

Mex02Camaro

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From: High Desert

yea, the PS are LTs and i dont care about emissions i just dont want that raspy sound. TSP catted y sound like it will be a good fit for my setup no?

Aug 22, 2007 | 11:13 PM

Tainted

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the TSP catted y WILL NOT be a direct fit. I suggest you buy 2 high flow magnaflow cats and have a shop fab you up a Y pipe, asnd if possible, get a flowmaster merge

Aug 22, 2007 | 11:17 PM

RevGTO

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With the LM II you will definitely want cats. Even with cats, my GMMG still had some rasp. I had to add a powerpack resonator to clear it all up.

Aug 22, 2007 | 11:29 PM

Mex02Camaro

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From: High Desert

I thought the TSP Y was a direct fit thats why they sell it in a set. hmmm so custom Y is the best way to go?

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Aug 23, 2007 | 07:26 AM

Fb0dy0nly

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From: Detroit ROCK City

I would go with the cats with the LM2 cuz that setup will be nasty loud and raspy without, and the spun cats would be a good idea as tainted pointed out but you might be able to get away with the TSP setup because it "is" suppose to fit the PS headers...

Aug 23, 2007 | 07:39 AM

#10

RacerScott

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From: St. Joseph, MI

The TSP catted Y was a direct fit for me on PS LT's to hooker cat-back, sliped right over the collectors the first time I tried

Aug 23, 2007 | 07:28 PM

#11

Mex02Camaro

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From: High Desert

anyone else had problems fitting the tsp y with the PS LT's? If its too much, rasp does matter where i add the resonator before or after the LM muffer?