Will it pass MOT emissions testing if the cats are removed?!

4.2 V8 40v biturbo - 450 bhp
4.2 V8 40v biturbo - 480 bhp (plus)
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RS6Jamie
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Will it pass MOT emissions testing if the cats are removed?!

Post by RS6Jamie » Sat Aug 18, 2007 11:18 pm

Possibly a silly question but will an RS6 pass its emission test on its MOT if the cats are removed? Was chatting to some of the B5 RS4 a few days ago and one chap has removed all the cats on his exhaust system and it still passed its MOT! I come from Rover V8-powered TVRs and wondered if I could get some of that rolling thunder back by removing the cats on the RS6. Has anyone on here tried this? Will it pass its MOT? Should I just get a Milltek system + be done with it?! Grateful for your comments.

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BigMo
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RE: Will it pass MOT emissions testing if the cats are remov

Post by BigMo » Sun Aug 19, 2007 4:23 am

milltek all the way. Dude, it'll Def fail if cats removed esp with the huge carbon footprint it has
RS6 (MRC'd with econodrive) is not just for Xmas
Toyota Aygo Platinum for minimising carbon footprint.

MugelloR
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Re: RE: Will it pass MOT emissions testing if the cats are r

Post by MugelloR » Sun Aug 19, 2007 7:34 am

BigMo wrote:milltek all the way. Dude, it'll Def fail if cats removed esp with the huge carbon footprint it has
Jamie, all of wot he said......Milltek looks nice too!! :thumbs:
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einer: Nogaro Blue B6 S4
zwei: Mugello Blue C5 RS6
drei: Magnetite C63 AMG
vier: Ibis White RS5
fünf: Phantom Black B7 RS4 - Currently

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RS6Jamie
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RE: Re: RE: Will it pass MOT emissions testing if the cats a

Post by RS6Jamie » Sun Aug 19, 2007 10:53 am

Now that DOES look good...!

allblack
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RE: Re: RE: Will it pass MOT emissions testing if the cats a

Post by allblack » Sun Aug 19, 2007 1:43 pm

another option if you dont want to go to the expense of milltek....I had the pre cats gutted and a set of 100 cell cats fitted (+ new flexi pipes) noticeable increase in performance, looks like a stock system, no significant change to in car noise (wife hasn't noticed!) and only £500

the car had an MOT last week with new set up and passed without any problems....


PS I'm not in the trade / associated - just a happy customer...

MugelloR
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Re: RE: Re: RE: Will it pass MOT emissions testing if the ca

Post by MugelloR » Sun Aug 19, 2007 3:19 pm

RS6Jamie wrote:Now that DOES look good...!
Thats only a cat back box........ :lol:
einer: Nogaro Blue B6 S4
zwei: Mugello Blue C5 RS6
drei: Magnetite C63 AMG
vier: Ibis White RS5
fünf: Phantom Black B7 RS4 - Currently

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