jonny_693

iTrader: (5)

Thinking of putting a decat down pipe on my MY97 WRX. The only mods are K@N panel filter, samco Y-pipe, centre de-cat and Prodrive back. So is it advisable without a re-map? Obviously a re-map on this MY requires a new ECU and havent heard anything else about ECUTEK becoming available for a while. The Engines been rebuilt by scooby clinic 15k ago,

cheers jonny.

nampahc01

check your ecu may be 4 pin at that age. thats the change ffrom 3 to 4.

my 97wrx is only 3 pin but some are 4 and your right you can't map them but i believe you can chip them and then map them.

jonny_693

iTrader: (5)

Thanks I'll do that but still not sure if It needs mapping at this level, allthough I know I would gain more power from a remap. Would it be safe without?

his-n-her-scoobs

iTrader: (5)

Hi Jonny,

Looks like sensible starting mods you have there. How does it feel compared to standard? Only asking as it seems I am heading down the same route.

cheers
Tony

Ciaran

iTrader: (16)

All the supposid experts on here will tell you that you need a re-map.
U DON'T!!!!
To get the full benefit from it you will need a re-map but it won't blow up without it!!

his-n-her-scoobs

iTrader: (5)

What mods you running then Ciaran?

Ciaran

iTrader: (16)

Currently just a full 3" de-cat and HKS ssqv and it has made all the difference already wait till the turbo and re-map are done amongst other things

tath

you do risk boost spiking and it will be a bit further from ideal map... whether either is enough to cause serious damage is very unlikely, but possible.

jonny_693

iTrader: (5)

Hi mate, to be honest it doesnt feel much different from standard. The centre decat didn't make much difference apart from noise but the when I fitted the samco Y-pipe It did seem to pick up better and you can see why when you look at the pipe it replaces. I'm aiming to keep it simple i.e exhaust and induction. Also done few small mods like removing the throttle body coolant feed and intercooler tilt and splitter but the difference is negligable.

jonny_693

iTrader: (5)

So the general thoughts are its safe to do. Will I see any noise difference? I want it louder but want to keep the prodrive BB, I like its understated look. Cheers for the replys

StickyMicky

my 97wrx was fine.......

it was also fine with a swap to a td05 and a boost controller running at 1.45bar.....

jonny_693

iTrader: (5)

Interesting, dunno what I'm worrying about then. Rumour has it WRX's run a little rich anyway.