weird.. and u didnt change anything?
if you check everything we told you to check i have no idea.. someone else smarter than me should chime in eventually lol
the n/a have a 4.30
the turbo is 3.91 for pre 89 and 3.73 for post 89
meaning your engine will be revving higher with the n/a at the same speed as a turbo diff hopefully that made sense
i dont understand how that causes fuel cut.. when exhaust has nothing to do with it. fuel cut is dependent on the air flow meter.. when too much air comes the afm reads it up to a certain frequency (cant remember off the top of my head what it was)but then the ecu see's it and cuts the fuel.
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