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Old 11-01-2012, 12:21 AM   #4
the suicidal eggroll
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region: RMIC
Location: Broomfield, CO
2005 STi
2012 WRX


As tunertype mentioned, there are two rev limiters on the 32-bit ECUs. The first is the throttle limiter, which dials back the throttle plate open angle significantly as you approach redline. The second is the hard fuel cut, which usually comes 1-200 RPM after the throttle limiter.

Both of these limits must be adjusted if you want to change the car's redline.
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