Catted vs Cattless

When i do this TBE is it a big difference between the two. I was told that i would want a catt but does it make that big of a difference?

 

A single, good, high flow cat vs. no cat will not make much of a difference. Your car won't smell as bad with the 1 cat as without any cats. If you do get a cat get a high flow replacement for the 3rd cat as that will have the smallest effect on power.

 

i was thinking about doing a high flow cat on my car too. this good information.

 

I am buying tbe in the near future. I am going to get the single high flow cat. IMO it will help keep the car a little quieter and not so smelly. Just my .02

 

imo, even a single high flow cat will make a TON of diffrence.

 

pretty much the only reason in my opinion to keep a cat is so that you don't get stuck in SM for autocross. the extra cost for a high flow cat isn't worth it otherwise.

 

I think you should check your info.

 

I think if you get a tbe the cated ones are about 100 bucks more.

 

I would never pay extra money for less performance. If volume and smell are issues then get a cat. This is my second car with modded exhaust and both cars were catless and I would do it again also.

 

I do not understand why people think it stinks. Been running without for little while now and seems fine to me. Does not smell that bad to me... well then again I think I might even like it and that probably make me a just a little strange I guess.

 

I totally agree, especially now that I'm running 110 octane..I love the smell :slayer:

 

ok one sec.....
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yep, huge diffrence.

 

making the same peak hp at lower boost levels.

APSWRX-HOE/R8 with Cat
HP -225 - 325 - 425 - 525 - 625 - 725
Lbs-2.0---3.5---6.0---12.0 ---------

APSWRX-HOE/R8 without Cat
HP -225 - 325 - 425 - 525 - 625 - 725
Lbs-0.5---1.0---1.5---2.5---3.5---5.0

 

MA! Pete's getting HIGH again!

 

i agree on the smell. no cats, like the smell, have no issues. I don't carry passengers too often, but when I do they have not complained about the smell.

 

Its the smell of POWA

 

I'm pretty sure he's check it, heck he sold me his catted dp....

Even with my catted dp in I still get a little smell. personally I'm happy with it, I wouldn't change a thing.

 

I have a cat-less car, and my bro has a "race-cat" in his. The diff in power is next to nothing. 5hp at the crank at tops! High flow race cats are what it's called for a reason! They are high flow!

If you can't handle the smell, can your wallet handle the $200-300 diff for a race cat setup?

 

this cat thing doesn't get old.

 

Thats what I was getting at. Plus most tbe come with high flow cats. Thats all. Also I was not saying that cats make the same power but its a minimal difference.

 

Cobb thinks that a single high flow cat will have minimal effect as well. On just about any street car there will not be a noticable difference in performance.