Side question, but how do you know the gain came from the header and not the Woolich Tune?I've ridden several times after updating ECU with Woolich, according to the log TPS % max is 98.3 every time I pin it. Is this normal or do I need to adjust the throttle? BTW I understand the difference Akrapovic header makes, WOW crazy mid acceleration. On my Gen4 I kept the factory header.
I only have a slip-on and after the tune the bike is insane. Feels like it's always trying to throw me off.