I aksed justin from HC a few questions about some wrx’s, here was his respond, maybe this will help you with performance mods and picking what year u want
Originally Posted by dreid
hey, i was wondering what kind of mods were done to that white wrx?? i am considering a wrx soon. I would love a sti but dunno about the extra 10K. also wondering what kind of mods would u consider if I was looking to make a 300 hp wrx as my DD. I am guessing that I could take a stock wrx from 220hp to 300 for far less than 10K. Lmk what you think and thanks in advance
Hey man,
Gary forwarded this PM to me and I hope I can answer all of your questions.
That white WRX had a FP Green turbo (good for 400-450hp), 3" Inlet, Bigger Injectors, Walbro Fuel Pump, and poor fitting intercooler hoses.
First off, it depends on what year WRX you are considering for your power goals. It can be done with either the 02-05, or the new 06. The difference is that the 06 now has the 2.5 liter engine, compared to the 2.0 of the 02-05s.
If you were looking for around 300hp, there are different routes to take. With the 06, you can do a turboback exhaust and Cobb Accessport (ECU Reflash). That nets you around 285hp and 340tq. You can always upgrade from there, but that is a good way to start, and costs only around $1500.
For the earlier model WRX, to get around 300whp you are looking at a turbo upgrade. For a list of what I’d put on my car if I had it again.
FP Subaru Evo III 16g (good for 330whp)
Turbo Inlet Pipe
Turboback (Our own)
Uppipe
Bigger Injectors
Walbro 255lph
FMIC (Bigger topmounts are about as much as a Front Mount Kit)
TurboXS UTEC or Cobb Protune
Boost & EGT Gauges
and probably a Clutch (ACT).
The STi although being more expensive, comes with alot more to offer. Brembo brakes, 6 speed tranny, active differentials, etc. Trying to make a WRX into a STI with the 02-05s costs WAY more than the approximate $10k difference.
Also, you will want to consider upgraded brakes for the 02-05 as they aren’t the greatest (new pads and lines are the cure), and 300-350whp is around where the WRX tranny breaks depending on how you drive it.
I hope this helped answer some of your questions, if you have any more don’t hesitate to ask.
Justin
Hybrid Connection