acceleration

About 2 weeks ago I bought a 2008 Mazda speed 3 with 184xxxkms. Test drove it and all went well. On the drive home the bov came out of the hose, tightened back up and it has been misfiring in hard boost ever sense. The car has mishimotto front mount Cts4 turbo Hpfp internals Exhaust 3.5 intake...

Whenever I'm driving with ac on I notice a surge in power or like an acceleration whenever ac compressor switches on. Most of the time it feels like it jolts the whole car other times its less aggressive while cruising on the highway . I usually feel it jerk the car while accelerating through...