So ive just bought myself a 1999 MY00 WRX...Friggen awesome car, ive had a Twin turbo Legacy RS before and stoked im in a Rex now!
Problem is everytime i give it some toe, it seems sweet up untill bout 4000 revs, then feels like it completely losses boost, and shudders.
Ive just had a 3" full exhaust system from the downpipe bolted on so i have a feeling that may have something to do with it.It has no other Mods.
I got the exhaust on before i got it, so not to sure it was doing it before tho. I spoke with the previous owner and he said he remembers it doing something like that when he first got it, but said when he changed to a different fuel it went away.
Just wondering if any one could throw some light on it, that would be great!