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-   -   high flow cats (http://986forum.com/forums/boxster-general-discussions/8231-high-flow-cats.html)

djomlas 11-16-2006 07:02 PM

high flow cats
 
would they set off a CEL on?
what are some good brands?

RandallNeighbour 11-16-2006 07:49 PM

Dansk has a set for the low low price of $1350.00 or so. For that price, they better not set off a CE light. If anyone has found quality sport cats for less, please post it here!

djomlas 11-16-2006 08:02 PM

damn thats a lot of gas money :)

Boxtaboy 11-17-2006 03:14 AM

Why not just get cat bypass pipes? 2000+ models have 4 cats (2 precats at the headers and 2 more before the muffler), so if you put in the bypass pipes, you won't get a CEL cause you still have 2 cats up front. Bypass pipes cost btw. $400-500.

edevlin 11-17-2006 04:57 AM

I have been having a little trouble with CEL (1275 and 0133) with the high-flow cats I have been using, but I think that is because they are used. It looks like one of the units is bad and we plan on replacing it. If you have a good quality high-flow cat and the O2 sensors are placed properly, should be no problem.

Ed

:cheers:

djomlas 11-17-2006 07:17 AM

my car is a 98, so i dont have 4 cats.

also, y are bypass pipes so expencive, when i had a ls1 camaro i went to a local muffler shop, they cut the cats off, and velded a pipe in there, and gave me my cats in a box. cost me 45 dollars

Boxtaboy 11-17-2006 07:35 AM

Quote:

Originally Posted by djomlas
my car is a 98, so i dont have 4 cats.

also, y are bypass pipes so expencive, when i had a ls1 camaro i went to a local muffler shop, they cut the cats off, and velded a pipe in there, and gave me my cats in a box. cost me 45 dollars

Because they are for a Porsche. :D You don't think any shop would sell stuff they make for a Porsche for a bargain do ya? :rolleyes:

djomlas 11-17-2006 07:44 AM

good point, but its just a piece of pipe. doesnt have anything to do with porsche or chevy or lexus or whathave you

Boxtaboy 11-17-2006 07:50 AM

Quote:

Originally Posted by djomlas
good point, but its just a piece of pipe. doesnt have anything to do with porsche or chevy or lexus or whathave you

Same concept as cold air intakes, for example. Materials these shops use are the same (a cone filter, plastic intake tubing/box, etc.). Sell it for a Chevy and charge $99 bucks. Sell it for a Porsche, and charge $400. They think Porsche owners expect to pay more and can afford to shell out more. Marketing. Clever marketing.

djomlas 11-17-2006 08:06 AM

i know exactly what ure talking about :) very sad, unethical, but profitable

EPIQTodd 11-17-2006 09:32 AM

Cat bypass will get you more results (headers even more) and shouldn't affect the CEL at all. We've got cat bypass for $495 - http://www.epiqautosport.com/pro_boxster_secondary_catalytic_bypass_pipes.php - and then you still have your primary cats.

djomlas 11-17-2006 01:08 PM

as stated above, i dont have 4 cats, so that wont help me at all


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