I'm going to have my exhaust finshed. just after christmas.



I have a few problems i would like to ask first.



My Current Exhaust is the 1.3 Alpha exhaust what measures 1.68" The Coupe/Tibrunan Measures 2.1"





When i try to put my foot down my car will Bog down and shake. Is this due to the Limits in the exhaust or the Engine management ?





Are far as im aware the fuel map is perfect and the timing and crank settings are fine. Any ideas ?

 

If the car runs fine with just the manifold/header attached, your problem is the exhaust. Otherwise, not.