I know this has been asked so many times but do i need to have remap for fitting complete including downpipe decat system to my98 terzo. It hasnt got a front mount on

 

Yes you do

 

thought it was only if have front mount as runs lean

 

I might be wrong,just fully decated mine and need one

 

fingers crossed you are as they are about £800

 

Been quoted £600ish plus new fuel pump and a few other bits,,,,,,,still learning

 

i had decat downpipe, and centre on a blob wrx and ran for 8months with no problems that i was aware of!!! only things that can happen is that you may get your /CEL come up due to not monitoring the lamda properly due to the change in emissions, or somehting like that!!!!!

 

I've got a full decat on my classic uk turbo my98 aswell as green panel filter and haven't had it remapped and it's never missed a beat (touch wood)....never had overboost,surging etc........even been round Nurburgring giving it large and engines still going......at 120k!!!

 

Coddy220 Do you have to put the cat back in for the Mot? I have 1 cat left in mine and I want to remove it but I dont wan the hassle of putting the cat back in every mot time.


Cheers mate.



Matt.

 

i think you need a catted downpipe for MOT , everything else can stay decat

dont quote me

 

No you don't!

Although, to see the full benifit of the decat, it is a good idea.

I have run 2 classic sti's now with a decat with no problems whatsoever.

 

yes you do unless you get it running really hot and get them checked straight away or know i very understanding mot station lol

 

FFS he has a classic uk turbo! Very different ecu's to blobeyes!

 

best to remap a decatted classic,can be run without and no issues but it can vary from car to car with lean running and overboost problems,some are okbut its a chance to take,remappng will get the best performance from running no cats at all.... as for the mot no need to refit the downpipe cat,get a uk center cat and fit that for the mot and remove it afterwards,as long as the car is up to operating temp and the cat is hot it will pass no problem,4 bolts 15 min job.