Plus he noticed the infamous dip in power at around 2,500 RPM had been dialled out, too. Andy was impressed too, since he felt it delivered improved drivability and more torque in daily driving situations. Even more impressive was the mid-range power gains from about 3,000 RPM on up, most of which can be attributed to the higher boost pressure the Stage 1 OTS tune utilizes but the smoothness in both the HP and TQ graphs also indicate significant refinement to the fuel and ignition maps as well. All in all we were very impressed by the results of simply plugging in the APV3 and installing the OTS Stage 1 tune. The gains were pretty startling on an otherwise stock GR STI, peak horsepower jumping from 233-whp to 240-whp and peak torque jumping from 247.5-wtq to 280-wtq. Andy’s STI was the perfect machine to test it out on, which involved a trip to visit Brian at Advance Powerhouse in Toronto to baseline the car and then try out the Stage 1 OTS (Off The Shelf) tune on APH’s Dynapack dyno. We’ve always been big fans of the GR chassis STI, so when Andy expressed some interest in doing a little light tuning to his, we were more than happy to help.Ībout a year and a half ago our friends at Cobb Tuning sent us one of the very first production unit AccessPORT V3‘s as a viral marketing strategy, since they knew I’m a Facebook junky and would post about it. Our buddy Andy, who we met autocrossing about 15 years ago, owns this 2012 Subaru Impreza WRX STI hatchback. He picked it up a few years ago because he wanted something equal parts fast, fun and practical, and it’s hard to argue with his choice.
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