O2 sensors
10-23-2005 | 10:49 PM
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From: Boston,MA
My Ride: 2003 X5 3.0----->gone
2004 Porsche Cayenne S : Gemballa front and back bodykit, fabspeed bypass pipes, Gemballa exhaust pipes, full option, 20" factory sport design rims------>gone
2005 545i 6-spd manual---->de-badged, CDV removal, Autosolutions short shift kit, resonator removal, premium package, PDC, xenon, almost full options, hardwire V1 install ....looking for mods...
2007 550i 6-spd----> Premium package, sport package, Logic7, heated everything, Rogue Engineering SSK, CDV removal, hardwire V1 install, aFe cold air intake, Custom Magnaflow exhaust....
As u guys know in my previosu thread I am interested in installing cat bypass pipes. I called fabspeed motorsport and the guy quoted me 500 bucks for installation and making of the new pipes in place of teh catalytic converter. he actually told me that I could expect an increase of at least 17-18 hp. I am skeptical about the figure and expect about a 10-15hp and will be happy enough. He also told me that my exhaust would sound significantly louder. Problem is, I know there are O2 sensors there and there is no way to cheat that one. Anything I can add or change to the O2 sensors so that check engine lights wont come on??
10-24-2005 | 05:11 AM
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From: Indonesia
My Ride: 645Ci black/red, Eibach springs, K&N air filter, Wetterauer ECU upgrade, Eisenmann 83mmx4 exhaust, 20" Sportec wheels-Michelin PS2 tires, Hamann front add-on lip
Originally Posted by Jeffs' date='Oct 24 2005, 01:49 AM
As u guys know in my previosu thread I am interested in installing cat bypass pipes. I called fabspeed motorsport and the guy quoted me 500 bucks for installation and making of the new pipes in place of teh catalytic converter. he actually told me that I could expect an increase of at least 17-18 hp. I am skeptical about the figure and expect about a 10-15hp and will be happy enough. He also told me that my exhaust would sound significantly louder. Problem is, I know there are O2 sensors there and there is no way to cheat that one. Anything I can add or change to the O2 sensors so that check engine lights wont come on??
[snapback]187903[/snapback]
1. We can bypass the cats but we have to fabricated connections for the oxygen sensor which no ordinary muffler shop can fabricate(require very high skill) or,
2. buy a aftermarket performance header which include sockets to connect the oxygen sensors. If you diconnect the oxygen sensor, it will trigger a check engine light warning. You car will also have erractic/rough engine idling thst leads to poorer perfromance.
I hope this helps
10-24-2005 | 01:09 PM
#4
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From: Austin TX
My Ride: 2014 X5 xDrive 5.0 M Package Carbon Black Metallic/2008 M Roadster Imola Red
Originally Posted by Jeffs' date='Oct 24 2005, 01:49 AM
As u guys know in my previosu thread I am interested in installing cat bypass pipes. I called fabspeed motorsport and the guy quoted me 500 bucks for installation and making of the new pipes in place of teh catalytic converter. he actually told me that I could expect an increase of at least 17-18 hp. I am skeptical about the figure and expect about a 10-15hp and will be happy enough. He also told me that my exhaust would sound significantly louder. Problem is, I know there are O2 sensors there and there is no way to cheat that one. Anything I can add or change to the O2 sensors so that check engine lights wont come on??
[snapback]187903[/snapback]
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