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Old 02-10-2013, 01:09 PM   #1321
Gnarly Adventurer
Joined: Jan 2013
Location: Worcester, Mass
Oddometer: 268
Originally Posted by markjenn View Post
I don't know for sure, but I doubt it. I believe the stock bike has catalysts and you almost never see a catalyst on an aftermarket system. It appears it is just four straight pipes from intake to the rear mufflers, with no provisions for catalysts or O2 sensors. The ECU would operate open loop.

- Mark
With an open loop, can I still tune the bike to make more hp and torque, idle correctly, good throttle tip in, etc?

I'm also worried (naturally) about operating that part of the ECU in an open loop and having a lean out at certain rpms, load, conditions, etc. How critical is the 02 Sensor to the whole picture?

M3-SRT8 screwed with this post 02-10-2013 at 01:25 PM
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