Hello,
The mrs has been asking what she should get me for my '94 WRX. I'd like a full decat system, but also some other bits i have been thinking about.

Z4 ECU - there's one for sale on here but i'm not sure what i can expect to gain, retarded/advanced ignition ? better throttle response ?

TD05 turbo - not even sure if this would fit, is this larger than the turbo i currently have ?

Induction kit/ K and N filter ? If so i expect an induction kit is more beneficial then just a straight K and N ? Are K and N the best Filters/Inductions when it comes to scoobs ?

Any help would be appreciated, as you can tell i'm a noob, not when it comes to engines, just scoobs. I've cleaned the outside up a touch but now needs a little attention under the bonnet.
Thanks

 

Induction kits sound v nice but they dont improve performance or so powerstation told me they have tried and tested them.

 

From this....


To....

 

Alone i expect they don't but i would assume when you add decat pipes which allow faster exhaust flow i suppose a faster flow air filter/system would then be beneficial.

 

Looks much better - alloys, sills/spats and best rear spoiler imo (same as my MY00 ).

Surely have to de-tango next?

Then STi rear lights?

Maybe then grill and lower splitter - my old MY95 had a V6 grill and Jun (copy) splitter and looked great.

Engine/Power:

Z4 ecu will give you an easy extra 20bhp, and will be quite happy on Optimax - its a very similar map to the prodrive of the time. My MY95 WRX had a Z4 and no worries with Optimax alone, even after full decat (fitted a knocklink and no activity).

Fully decat with a Z4 ecu, and you should be running 260-270 bhp.

My old WRX had Afterburner downpipe and centre with a Ninja backbox - great combo if you like it pretty loud and big.

Don't bother with the induction kit, just change the panel filter to a Green, JR or STi replacement.

 

Cheers, thats all i need to know .

 

Oh, and you should already have a TD05 which is good for 350bhp

 

Heres what my old scoob looked like, with crystal fogs, clear front and side indicators, JUN copy splitter and a V6 copy grill:

 

and my new one, bit of a crappy pic but anyway

 

Very nice stix, thanks for all the info....

 

No probs. I'll shut up now - too much time on my hands, or rather I should have been doing something else but couldn't be arsed!