tarrano

Hi all,
I've tried searching, but can't find a definitive answer, so...
For a 96 JDM WRX ( pre-facelift, V2 ? ) got a HKS super drager cat back exhaust with a HKS mushroom filter and Bailey dumpvalve, Walbro pump, this is how i bought it.
What i want to know is, can i fully decat it SAFELY as i know i the ECU isn't remapable?
I've been told this makes quite a difference to response/performance, is this TRUE?
Cheers

midnight

iTrader: (10)

In a word yes ,decat will make the turbo more responsive allowing quicker spool up, as the exhaust gases have a less restrictive path to the atmosphere. Personally i would remove the dumpvalve after owning 5 various bov's (incl baileys) in the last 2 years,and nothing to be gained bar a noise ,but if your happy with it then ignore the last sentence.

tarrano

Thanks for reply, so will the ECU sort out the fuelling itself ? Paranoid about it running too lean!

tarrano

Has anyone else had any experience or advice on this?

madscoob

iTrader: (3)

full decat on mine reset ecu then have afrs checked on rolling road , no problem , the only prob you may have is overboosting due to it being more freeflowing

tarrano

Sorry for my ignorance, but what is overboosting? what are the symptoms, and what can be done about it?
Cheers.,,,