I had Ark exhaust and Berk HFCs installed a few weeks back - definitely felt more powerful.
However, in the last two days, I've noticed my oil temps are 220-230 with normal driving and the car doesn't feel as fast - normally, my temps are 180-200. I used Sunoco gas (usually use BP) for my last tank and have 1/4 tank left - could that be it? Is this just in my mind? Could it be the exhaust "breaking in" and changing the RPM where max torque/power are made?
I'm confused