Hi folks

I am looking at purchasing an Afterburner Vortex backbox and de-cat centre section for my 99 import STi

My question is will this set up cause any issues with MOT emissions?

Cheers

Stooboy

 

Decat might, but probably not as i think you'll still have one cat in the downpipe.

Correct me if I'm wrong though!

Iain

 

...correct.
Will fail if you remove both cats.

 

Ok thanks

 

AFAIK MY99 STi's don't have a centre cat anyway just a resonator box, my old type r did.
Fitted a 3" straight through centre and new backbox, passed the MOT no problems.

 

Oh ok. So is it worth buying the Afterburner de-cat centre section if my car already has no cat in the center section. Surley it wont be any different or are these aftermarket jobbies more free flowing?

Whats a resinator box, will the Afterburner de-cat centre section not have this therefore have better perfomance?

Thanks dont want to spend approx £100 for nothing

 

Resonator box cuts down on the noise from the exhaust. I suggest you try just backbox first then if it isnt loud enough buy the straight through de-cat section for your aural pleasure.

 

Ok cool. Like it loud anyway to be honest! I miss the loud burble from my old scoob with Blitz Nur spec!

Mite as well go for both Back box and centre.

Thanks

 

If you liked your blitz then the vortex wont be a problem for you , from a noise point of view.
I found that to make the vortex come alive it needed the non-resonated centre section, but its all down to your own taste.
I have just had a full de-cat which has reduced slightly the motorway drone which is the noise that is the most anonying IMO.