Just installed Brenspeed tune!!
12-30-2007, 11:03 PM
#1
1st Gear Member
Thread Starter
Join Date: Oct 2007
Location: Salinas, CA
Posts: 78
Just installed Brenspeed tune!!
I know it is old news but it is freakin' amazing. I just finished my second test drive and I'm floored. I have the 87 octane tune in right now. I can't imagine what the 91 tune will be like. The differences:
1)much better response and accleration
2)sound is awesome, much more intense and throbbing (think I might like to have the h-pipe back)
3) exhaust smell is noticeably different, it smells kind of like a burnt match
I have a couple of questions. I never spoke to Brenspeed in person. I handled the whole purchase via internet and e-mail. Does Brenspeed disable the rear O2 sensors in an application like mine where all I have is a CAI? I read the thread about Bamachips doing so. I thought the rear O2 sensors played a role in keeping the proper A/F mixture. Also, will these performance tunes shorten the life of the engine?
1)much better response and accleration
2)sound is awesome, much more intense and throbbing (think I might like to have the h-pipe back)
3) exhaust smell is noticeably different, it smells kind of like a burnt match
I have a couple of questions. I never spoke to Brenspeed in person. I handled the whole purchase via internet and e-mail. Does Brenspeed disable the rear O2 sensors in an application like mine where all I have is a CAI? I read the thread about Bamachips doing so. I thought the rear O2 sensors played a role in keeping the proper A/F mixture. Also, will these performance tunes shorten the life of the engine?
12-30-2007, 11:44 PM
#2
5th Gear Member
Join Date: Jan 2006
Location:
Posts: 4,333
RE: Just installed Brenspeed tune!!
ORIGINAL: dr350rider
I know it is old news but it is freakin' amazing. I just finished my second test drive and I'm floored. I have the 87 octane tune in right now. I can't imagine what the 91 tune will be like. The differences:
1)much better response and accleration
2)sound is awesome, much more intense and throbbing (think I might like to have the h-pipe back)
3) exhaust smell is noticeably different, it smells kind of like a burnt match
I have a couple of questions. I never spoke to Brenspeed in person. I handled the whole purchase via internet and e-mail. Does Brenspeed disable the rear O2 sensors in an application like mine where all I have is a CAI? I read the thread about Bamachips doing so. I thought the rear O2 sensors played a role in keeping the proper A/F mixture. Also, will these performance tunes shorten the life of the engine?
I know it is old news but it is freakin' amazing. I just finished my second test drive and I'm floored. I have the 87 octane tune in right now. I can't imagine what the 91 tune will be like. The differences:
1)much better response and accleration
2)sound is awesome, much more intense and throbbing (think I might like to have the h-pipe back)
3) exhaust smell is noticeably different, it smells kind of like a burnt match
I have a couple of questions. I never spoke to Brenspeed in person. I handled the whole purchase via internet and e-mail. Does Brenspeed disable the rear O2 sensors in an application like mine where all I have is a CAI? I read the thread about Bamachips doing so. I thought the rear O2 sensors played a role in keeping the proper A/F mixture. Also, will these performance tunes shorten the life of the engine?
congrats man!
12-31-2007, 12:27 AM
#4
5th Gear Member
Join Date: Jun 2007
Location: Decatur AL USA
Posts: 2,176
RE: Just installed Brenspeed tune!!
I dont think anyone actually disables them as in no voltage to the rear 02 (this will cause them to go bad in short order).
I think they program the PCM to ignore them (maybe by changing the parameters for a fail).
How that would effect an emissions test I have no idea.
I would think the emissions test would only look fora DTC code in the PCM for a failed O2.
I have heard that Brenspeed disables rear 02's as a matter of course but I dont know that for a fact.
Why not just ask him?
I think they program the PCM to ignore them (maybe by changing the parameters for a fail).
How that would effect an emissions test I have no idea.
I would think the emissions test would only look fora DTC code in the PCM for a failed O2.
I have heard that Brenspeed disables rear 02's as a matter of course but I dont know that for a fact.
Why not just ask him?
12-31-2007, 04:31 AM
#5
RE: Just installed Brenspeed tune!!
ORIGINAL: Gene K
I dont think anyone actually disables them as in no voltage to the rear 02 (this will cause them to go bad in short order).
I think they program the PCM to ignore them (maybe by changing the parameters for a fail).
How that would effect an emissions test I have no idea.
I would think the emissions test would only look fora DTC code in the PCM for a failed O2.
I have heard that Brenspeed disables rear 02's as a matter of course but I dont know that for a fact.
Why not just ask him?
I dont think anyone actually disables them as in no voltage to the rear 02 (this will cause them to go bad in short order).
I think they program the PCM to ignore them (maybe by changing the parameters for a fail).
How that would effect an emissions test I have no idea.
I would think the emissions test would only look fora DTC code in the PCM for a failed O2.
I have heard that Brenspeed disables rear 02's as a matter of course but I dont know that for a fact.
Why not just ask him?
I dont know if the reading is "shut off" either, but either way the CEL doesnt show up!
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