Exhaust upgrade-MOT emmisions

[Mike HSV]

Hi guys, have any of you HSV owners had any probs with MOT emmisions after having exhaust mods done(headers,new cats+cat back). If so do you have to go to the effort of changing the system back to original every year??
I know this not relevent to a lot of you guys with newer cars but my poor beast has been having MOTs for 5 years and up until this year has breezed it with the standard pipe, im a bit worried for next time!

Mike

[ringram]

As long as you have kept the cats and the engine is stock Im pretty sure you will be fine.

[td*ute]

Mike, I have sent you an e-mail re: MOT's
Trev

[caspy]

Am sure the MOT will be fine.

[Mike HSV]

Thanks guys. Should be up to see you later Brian, all being well.

Mike

[mose]

I've been advised from Milltek that the 200 cell cats on hte full system will fly through an MOT and not cause any probs for emissions.

Or is there a bit of a myth where this i concerned. I am aware that the SuperSprint Race system I was going to have fitted to the M3 guaranteed the same.