You can use 3 inch mndrel bends and copy the CRX style CAI. The oval hose will fit a round pipe easy. Or you can do the following:
'02 Subaru WRX firstname.lastname@example.org bone stock
'95 R33 Nissan Skyline GT-R Vspec NISMO stage 1 400bhp
'88 Fiero Formula 5-speed, sunroof, YELLOW! **under restoration**
'87 Fiero GT 4.9/4T60e w/3.33 final drive, ZEX nitrous 65hp shot, 88 cradle w/ 325# coil overs, Poly everything, Upgraded sway bars, KYB's, 16X7 M11's, 11.25 "Zettner" front brakes, Complete MSD ignition w/ 6AL box, Custom 2.5" Flowmaster exhaust, Grand Sport Corvette paint, Carbon fiber interior trim, '98 T/A CD w/ ETR, Reverse Indiglo guages, Pillar mounted AutoMeter O2, Hella H4 conversion.
Follow its built up here: