RESSE

iTrader: (1)

I am not sure of the next thing to do to my 1996 STi RA - I have a performance exhaust + HKS induction kit fitted (not sure of make of exhaust).

Would a decatted downpipe be the next thing to do - or would this be in conflict with the engine management?

Richard

GC8

If you remove the up/down pipe cats you will risk boost spikes so you will need a re-map; not easy on an early car. It depends on your budget and what you wish to achieve; but Id look at removing all cats and fitting a single high flow sports cat in the centre of the car. You will have to bite the bullet and fit a new ECU or at last a piggy back. Apexi and Greddy come to mind but you could go for a full GEMS or Motec. Whether itd be worth this just do de-cat Im not sure; youd be better talking to someone who can supply and map the ECU.

Speed costs money; how fast can you afford to go?

Simon

Andy Porter

I decatted MY94 STI with no remap ect, ran fine, noticeable performance difference to Spooled up much quicker

RESSE

iTrader: (1)

Simon - thank you.

Andy - I have emailed Graham Goode racing (GGR) and asked them to clarify the points raised, as I have read a decat on an STi can cause "problems" - i.e. it is not a case of bolt on and go

I had the decat done on my previous 1995 Triple 5 WRX with no problems, but you always have to be cautious and I am beginning to understand that the STi is quite a different animal to the WRX.

GGR will be delimiting and changing the speedo over to 180 mph one in February + fitting STi red/clear lights, so I thought I would ask a few questions on Scoobynet before I take the plunge on the exhaust route.

Thanks both for your help.

Richard

RoRu

If you have an sti ra it would of come with the sti lights surely?

V LTD sti type RA

i have a full decat ss xhaust and there wasnt any problems atall! i only noticed an increase in responce and a gorgeous growl out the back!(full decat is approx 10% more power) i am geting the odd popping and banging and a blue flame now and again when reved hard at standstill.

RESSE

iTrader: (1)

RoRu - that is what I thought!

Car is definately an Sti RA (rrok vent, correct chassis number/model number/DCCD/white paintwork etc etc) but no red/clear rear lenses.

Has anyone else come across this, as all of the Classic Imports I have owned (3) none have had the red/clear light clusters........?

Puzzling.

Scoobydrive

The red/clear ones only came on the Sti3 onwards so all is ok.

RRH

The earlier STi's had red / orange