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you'd be best off doing the dump/front pipe as well. then you would have to run it at stock boost as it would flow more air than the stock one, so if you went higher you may hit rich and retard. other than that it would be fine.

as he sed, finish ur exhaust, buy a boost controller and an ecu and tune it. i wudnt run it for too long or give it too hard until uve tuned it, just to be on the safe side.

Edited by moonus

im running slide hiflow,full 3" exhaust n dump, cooler,walbro pump and about 14psi...it feels good but the stock ecu holds the hiflow back something bad..i mean i can barely pull away from stock 33's that are running cooler/exhaust and 14psi :laugh:

Edited by l0WRB

Ive got a highflow, sitting there waiting to go on (found a R34 gcg highflow at a price i couldnt pass up).

batmbl split dump and highflow cat

catback 3in

Turbosmart eboost 2

I ran my standard turbo at 10psi for only short periods. Would the highflow move more air at stock boost than the standard at 10psi?

Im thinking if i run it at standard boost, and set the wastgate pressure to open up at low boost (eboost 2 gate pressure function), will this be ok to cruise around with for a while. Then i can sell my stocko turbo and get FMIC or more likely a PFC while they are still around. Also on the cards is fuel pump and injectors when the $$$s allow.

cheers

Evil

Edited by EvilINGT

I realise that boost is only relative to each specific turbo. Which is why i ask if a gcg highflow moves more air at stock wastegate pressure than the standard turbo at 10psi.

Which also leads to the question, what boost is the wastegate spring set to on A- a r34 turbo, and B- a r34 gcg highflow turbo (sydneykid some help maybe :D )

cheers

Evil

  • 5 weeks later...

ok.. if i have roughly $500 to spend on after turbo upgrade.. what will be the best thing to spend it on? keep in mind.. i only have catback and fmic. cause it doens't look like i'll be able to afford a new ecu for awhile.

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