I just installed a boost controller and running 1 bar, tonight i took the car out for a spin and when i'm driviing in 3 or 4th the car just slows down as if its down shifting or something (for 2secs) then comes back to normal (it actually did it a few time).
the car is still running the stock exhaust, apart from the boost controller and a blitz bov the car is stock.
I'm guessing slipping clutch, but i've never driven a car with a slipping clutch, any ideas??
also what does a slipping clutch feel like??