Been gathering all my mods over the last few months and want some advice as to anything that might be missing. Especially bearing in mind age of car (low mileage though):

Car - 1993 WRX (standard engine except Exhaust below from Turbo back)
Aim - 300 - 320 bhp

Mods acquired or just about to acquire:

Apexi PFC & Commander
Apexi Power Intake
Apexi AVC-R
HKS Headers
HKS FMIC
550cc Multi-Spray Injectors
Fuelab Reg (the new SX I think)
Walbro
H&S Up-pipe (hopefully will link ok with HKS headers)
Scoobyworld open neck downpipe and resonated centre section (2 1/2" I think)
H&S Backbox
Gauges - Boost, Oil Temp, Oil Pressure, Air/Fuel (maybe)
Lots of wrap

All views welcomed

 

Front Brake upgrade from 2pots to at least 4pots

 

ah yes, forgot to add that one in. It is at the back of my mind, though I know it should be at the front!

When I said standard, I meant the engine and brakes only.

 

If you haven't already got them forget the HKS FMIC and headers, the H&S uppipe and the AVCR.

Speak with Harvey about his front mounts, I believe they are reasonably priced and perform very well.
Get yourself some headers like those available from GT-Spec, there GenII headers complete with uppipe and heat coating (so no need for miles of wrap!) can be had for around half the price of the HKS offering.

And with the money you've saved, upgrade your brakes

 

HKS Headers, HKS FMIC and up-pipe are all used, so mucho savings already made

AVC-R admittedly is an expensive add-on, but I have read too many good things about it from the like of Andy F and others to omit it.

 

If you're aiming for more than 1.1bar then you'll need the ACVR for the MAP sensor anyway. Well, you could go for the Apexi boost control kit, but for the extra £100 the ACVR does so much more its worth the extra outlay.

Uprate the OE DV if you're planning on raising boost over 1.2 bar, the older ones have been known to leak over this.

Also

vent breathers
parallel fuel rail mod
cold air box for filter

Every little helps

Then see how long the clutch lasts

 

map sensor problem was definitely one thing I was wondering about, so thats cleared that up thanks

Cold air box - something that will need doing.
Vent Breathers - no idea what they are, where they are or how
to vent them
Parallel fuel rail - will speak to the lucky person who fits the mods.

I forgot I had the Bailey VTA on so no problem with DV (apart from the fact that its a VTA )

Clutch, yes well thats staying standard until it breaks, along with the gearbox.

 

Breathers: If you look at the turbo inlet pipe where the OE DV returns to (yours is probably blocked off having a vta), next to that there are 2 other pipes joining the inlet pipe. One is from the crankcase, the other is from the cam covers. These need to be re-routed to an oil catch tank (or direct to atmos) and the holes in the inlet pipe blanked off.

Best done when the manifold is off doing the parallel rails.