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'98 RSTI, and some other things
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Discussion Starter · #1 ·
So my turbo works fine.... but in 2500-4500 in 4th-6th, it sounds funny.

Kinda like compressor surge when u let off the gas and u hear is dump the boost.... but imagine and psh-psh-psh-psh sound sucking the air in?

Any ideas why/

Using a perrin turbo inlet, Prodrive CAI, and 3" catback on stock sti downpipe.
 
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