Original equipment for a 2004 WRX is an EJ205BW7BB mated to either a TY754VV5AA 5 speed manual or a TV1A4YV3AA 4 speed auto.
Advice
1 - 6 of 6 Posts
Subarus are cheap to get to stock STI power (300HP, roughly). Above that they are expensive. An example, if you launch a WRX 5 speed, it's on borrowed time. The STI 6-speed can handle repeated launches and 500+ HP builds, but that costs $3k-4k or more.
If it were me and I wanted to get a reliable engine for not too much, I would go with a low mileage JDM ej205 wrx motor. The one with AVCS (variable valve timing on intake). With an AVCS harness from iwire, and a compatible ECU, and a tune, you will have a fun ~300hp car for a couple grand.
iwireusa.com
iwireusa.com
If it were me and I wanted to get a reliable engine for not too much, I would go with a low mileage JDM ej205 wrx motor. The one with AVCS (variable valve timing on intake). With an AVCS harness from iwire, and a compatible ECU, and a tune, you will have a fun ~300hp car for a couple grand.
AVCS Bulkhead Kit
Did you feel that? That was the AVCS kicking in (YO) because you installed iWire's AVCS Bulkhead Kit with your new JDM WRX or STi engine! Maximize the Performance of Your JDM V7-9 WRX or STi Engine by Activating the AVCS.To get the most out of this engine, you will want the AVCS working to help...
iwireusa.com
Merge Services
"Subaru Made it Bolt Up. We Make it Plug-In." Thank you for your interest in our wiring services! Our custom harness merges combine the power and features of your new engine and ECU with the factory amenities of your chassis. We strive to make a high-quality and reliable harness so you can enjoy...
iwireusa.com
1 - 6 of 6 Posts
