Originally posted by 125shifter
I believe the OD of the pipe and compressor inlet are the same on the stock turbo.
Yeh, it's going to be a mismatch for me as I'm going to run a Garrett GT35R BB turbo, which has a 3.25" inlet on the compressor, so I have to step it down to 2.75" if I use one of those 930 inlet hard pipes
The turbo has a straight 3.25" to 3.0" silicone reducer on it, so I have to reduce it down further to 2.75"
'89 911 Turbo Cab
Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition