Ash_WRXSTi

I know this question seems to have been asked a lot but im new to scoobys and cannot find a specific enough answer for my particular situation.

I have a 98 V4 STi, I bought it with an Apexi backbox and air filter.

Ive just added a 2.5" stainless centre section which eliminated the standard centre silencer box for a bit more grunt from the exhaust - but have seen I may need a remap to accomodate. The car seems fine and isnt boosting any more that it was before (I have a blitz DTTC with a max boost reading on it).

What are the implications of me not getting a remap? If any?
Where are good places (in the North West area) to get one?
How much are they?

Thanks for your help and apologies for the noob questions.

Ash

TonyBurns

iTrader: (3)

You should be ok, but with all JDM cars I would recommend adding gauges or a KS3 to monitor what the engine is doing as these cars are mapped differently to UK ones and have a more agressive map and are more highly strung when it comes to changes from the standard spec

Tony

PS, google KS3 if you dont know what it is

Ash_WRXSTi

Thanks Tony, much appreciated the response there.

Ive looked into those KS3's and TBH i think they will just make me even more paranoid than I already am about the car!

I still might get one though. The exhaust is the first time ive spent money modifying the scoob. So far ive only bought things to make sure the cars safe! I already have oil press/temp gauges a boost gauge and also the aforementioned turbo timer...

Its good to know that what ive done is not a total "no no" though and im not going to have any major issues. Thanks.

I take it a decetted section for the downpipe would then require remap?

Can 98 ECU's be remapped, I read somewhere they cant???

Jolly Green Monster

iTrader: (4)

Imho it most likely should be mapped.

However is it possible to check it to tell you.

The 97/98 requires a replacement ecu to be mapped yes (apexi, simtek, syvecs etc)

Simon

Ash_WRXSTi

Well JGM, my most cost effective solution here then would be to take the pipe back off then. Because the cost of an ECU plus a remap, hardly warrants me wanting a bit more noise from the exhaust does it?

It will cost me about £1000!

When you say it is possible to check and tell me, how do you do this? And how much am I looking at?

Thanks again,
Ash.

midnight

iTrader: (10)

You sould not need a remap if you are just replacing the centre section of your exhaust,and as you say will allow the gases a speedier exit from your exhaust, so leave it on and leave the normal downpipe on and you have no worries come mot time..

However quite a few classic owners decat there cars and have no running issues so the choice is yours. I decatted both mine(uk cars) as well as 4x wrx imports up to 2 yrs ago and all running ok up to now

Jolly Green Monster

iTrader: (4)

Just get it fuelling and det checked and use decent (shell vpower) and go from there