New backbox, decreased performance
#1
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I've just had a new back box fitted on my UK300 impreza and it has decreased the performance of the car a hell of a lot.
When u accelerate it takes ages for the turbo to kick in and also the car shakes like the fuel and air ratio is wrong.
Any ideas???
When u accelerate it takes ages for the turbo to kick in and also the car shakes like the fuel and air ratio is wrong.
Any ideas???
#3
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its a twin 4 and half inch. i dont know what else it could be as the car was running fine up until i had the back box fitted. and i had it fitted professionally through a powerflow outlet.
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