Quote:
Originally Posted by cgeise
On my 525 - it starts to get into back pressure "issues" at about 22 to 24 psi - we had the tubine housings modified and it helpped but is still there - I have been told the only way to fix it is 91s or 94s -- and those things are huge -
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Did they go into specifics on why those would fix the problem? Better/bigger turbine housings than the 88s? just curious
