I would like to know where the ceiling of the stock turbo is. At a certain point, it's out of it's efficiency range and it's working too hard.
I am thinking 300whp will be no problem with supporting mods(downpipe, intercooler, exhaust, stage 2 tune). But will the stock turbo support 320whp, 340whp?
'98 M Roadster+'06 Saab 9-5 Combi 5mt
'11 Saab 9-3 XWD
'13 M-Sport 328i 6mt FOR SALE
E36/7: Dinan/RMS stage 2+ blower@13lbs of BOOST! 18" BBS LM's, too much more to list
F30: ForgeStar F14 19's summer-OZ Superleggera 17's winter/Rogue Catback/Integral Audio/AFE intake scoop/BMS stage 1