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  1. ECU Tuning & Performance Electronics
    Hello all, pardon my ignorance or lack of proper post placement. Car is completely stock aside from Group N transmission mount, shifter bushings, and rear diff carrier bushings. My AP is currently installed only as a monitor, using the Stage 0 v400 Cobb OTS tune. I'm just looking for some...
  2. Warranty / Service Issues
    I have a 2020 sti. I had it on stage 1 that does not require any mods. I flat foot shifted the car and didnt seem like there was any problem at that time. 2 days later, I get a cylinder 4 misfire and white smoke was coming out on cold starts and my coolant was low. I cleared the code because i...
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