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11-16-2006, 07:02 PM
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#1
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Registered User
Join Date: Sep 2006
Location: chicago
Posts: 3,510
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high flow cats
would they set off a CEL on?
what are some good brands?
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http://i34.tinypic.com/157yslk.jpg
"I couldn't find the sports car of my dreams, so I built it myself." ~F. Porsche
Gemballa springs::litronics::Eurotech 18s(275/225)::B&M::MOMO wheel::
exhaust cutouts::EVOcoldair intake::OEM smoked tails & sidemarkers::
colormatched bumperettes::Top Speed Pro-1 exhaust::
my cardomain/pictures page
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11-16-2006, 07:49 PM
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#2
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Registered User
Join Date: Jul 2004
Location: Houston, Texas
Posts: 7,240
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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!
__________________
'97 Boxster (Black Hole for 42,000 Dead Presidents and counting) - 122k
New motor, transmission, suspension, and on and on and on it goes...
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11-16-2006, 08:02 PM
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#3
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Registered User
Join Date: Sep 2006
Location: chicago
Posts: 3,510
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damn thats a lot of gas money 
__________________
http://i34.tinypic.com/157yslk.jpg
"I couldn't find the sports car of my dreams, so I built it myself." ~F. Porsche
Gemballa springs::litronics::Eurotech 18s(275/225)::B&M::MOMO wheel::
exhaust cutouts::EVOcoldair intake::OEM smoked tails & sidemarkers::
colormatched bumperettes::Top Speed Pro-1 exhaust::
my cardomain/pictures page
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11-17-2006, 03:14 AM
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#4
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07 Carrera S Cab
Join Date: Nov 2005
Location: New Jersey
Posts: 2,273
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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.
__________________
Current: 07 Carrera S Cab in Midnight Blue
Previous: 01 Boxster in Arctic Silver, 86 944 in Guards Red
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11-17-2006, 04:57 AM
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#5
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Registered User
Join Date: Jul 2006
Location: Virginia
Posts: 916
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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
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My Car Webpage
2000 2.7L Boxster 102K; TTP intake, headers, high-flow cats; Dansk high-flow muffler; Autothority ECU chip; TechnoTorque 2; Bilstein coilovers; Racing Dynamics strut brace; stress-bar suspension kit; Aasco lightweight flywheel, B&M short shiftkit; 18" wheels; spare tire delete; OEM GT3 seats; JL audio speakers and subwoofer; Alpine PDX-5/PDX-2 amps; Kenwood DNX8120 CD/DVD/Nav; litronics, deambered
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11-17-2006, 07:17 AM
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#6
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Registered User
Join Date: Sep 2006
Location: chicago
Posts: 3,510
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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
__________________
http://i34.tinypic.com/157yslk.jpg
"I couldn't find the sports car of my dreams, so I built it myself." ~F. Porsche
Gemballa springs::litronics::Eurotech 18s(275/225)::B&M::MOMO wheel::
exhaust cutouts::EVOcoldair intake::OEM smoked tails & sidemarkers::
colormatched bumperettes::Top Speed Pro-1 exhaust::
my cardomain/pictures page
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11-17-2006, 07:35 AM
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#7
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07 Carrera S Cab
Join Date: Nov 2005
Location: New Jersey
Posts: 2,273
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Quote:
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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
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Because they are for a Porsche.  You don't think any shop would sell stuff they make for a Porsche for a bargain do ya? 
__________________
Current: 07 Carrera S Cab in Midnight Blue
Previous: 01 Boxster in Arctic Silver, 86 944 in Guards Red
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11-17-2006, 07:44 AM
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#8
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Registered User
Join Date: Sep 2006
Location: chicago
Posts: 3,510
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good point, but its just a piece of pipe. doesnt have anything to do with porsche or chevy or lexus or whathave you
__________________
http://i34.tinypic.com/157yslk.jpg
"I couldn't find the sports car of my dreams, so I built it myself." ~F. Porsche
Gemballa springs::litronics::Eurotech 18s(275/225)::B&M::MOMO wheel::
exhaust cutouts::EVOcoldair intake::OEM smoked tails & sidemarkers::
colormatched bumperettes::Top Speed Pro-1 exhaust::
my cardomain/pictures page
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11-17-2006, 07:50 AM
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#9
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07 Carrera S Cab
Join Date: Nov 2005
Location: New Jersey
Posts: 2,273
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Quote:
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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
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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.
__________________
Current: 07 Carrera S Cab in Midnight Blue
Previous: 01 Boxster in Arctic Silver, 86 944 in Guards Red
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11-17-2006, 08:06 AM
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#10
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Registered User
Join Date: Sep 2006
Location: chicago
Posts: 3,510
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i know exactly what ure talking about very sad, unethical, but profitable
__________________
http://i34.tinypic.com/157yslk.jpg
"I couldn't find the sports car of my dreams, so I built it myself." ~F. Porsche
Gemballa springs::litronics::Eurotech 18s(275/225)::B&M::MOMO wheel::
exhaust cutouts::EVOcoldair intake::OEM smoked tails & sidemarkers::
colormatched bumperettes::Top Speed Pro-1 exhaust::
my cardomain/pictures page
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11-17-2006, 09:32 AM
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#11
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Registered User
Join Date: Jan 2006
Location: CA
Posts: 259
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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.
__________________
Todd
2005 Boxster S - Atlas Grey/Black, PASM, Sport Chrono, Bose
2006 Infiniti M35 Sport
2007 Cadillac Escalade (tow vehicle with bling)
'00 Boxster - 2.7l w/FVD ECU tuning, Moton double adjustable suspension, custom stainless headers, lightweight flywheel, dual Magnaflow mufflers, 18" CCR wheels, 911 front brakes in front, Boxster front brakes in rear, full welded cage.
http://www.epiqautosport.com/images/epiqtoddavatar2.jpg
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11-17-2006, 01:08 PM
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#12
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Registered User
Join Date: Sep 2006
Location: chicago
Posts: 3,510
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as stated above, i dont have 4 cats, so that wont help me at all
__________________
http://i34.tinypic.com/157yslk.jpg
"I couldn't find the sports car of my dreams, so I built it myself." ~F. Porsche
Gemballa springs::litronics::Eurotech 18s(275/225)::B&M::MOMO wheel::
exhaust cutouts::EVOcoldair intake::OEM smoked tails & sidemarkers::
colormatched bumperettes::Top Speed Pro-1 exhaust::
my cardomain/pictures page
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2001 Porsche Boxster
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