Im not at 400whp but my car dynod at 330whp on a Mustang. Feel nice, quick spool, holds all the way to redline. This is all at 19psi on a Rob's 440 tune. Specs below.
Version 2 STI swap (rebuilt 20,000km ago)
TD05H 16G
Robs 440 Tune @ 19psi (10.5AFR at WOT)
AEM Wideband AFR
AEM Boost Gauge
Hallmans MBC
APEXI Power Intake System
Cometic metal head gasket
ACL race bearings
ARP head studs
OEM replacement piston rings
OEM front and rear main seals
OEM camshaft seals Timing belt, tensioner and pulleys
Bully stage 3, 6 puck Kevlar sprung clutch Bully stage 3 pressure plate
Syms headers
zero sports World Leaguer downpipe
Zero sports world Leaguer Cat back exhaust
poly urethane exhaust bushings
Greddy RS blow off valve
Suspension
Gab Damping adjustable coilovers with camber plates
Rear white line camber bolts
Rear cusco Strut bar
Front cusco Strut bar
Whiteline 22mm rear Sway
Brakes
STI brembos up front w/hawk race pads
2.5rs set up in the rear w/hawk race pads