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Originally Posted by BLACKISWHACK
^ ugh yeah definitely.
I am definitely not trying to rice around and leave it on all the time. The major reason I am considering it is because I can shut it the hell up whenever I want, and then when I need it in race mode, I fip the switch or push the button, etc.
In the past I called Blacktrax and the person who answered the phone said that on application to a lude, the ECS system was 5whp after the cat and 10whp before the cat. But I did not know who was on the phone, but it was a girl.
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If the cutout is electronic, then what you want to do is wire up the cutout to turn on the same time that the IAB solenoid engages (or VTEC, same concept). That way you get the most benefit at high RPM and keep your torque down low.
The problem that you haven't addressed yet is tuning. Running an open header will make an otherwise well-tuned motor run lean. This is especially true with a stock ECU. You are going to need a different engine tune when the cutout is open.