Exhaust Rules

[Russ59]

Took this snippet from Pistonheads about exhaust rules. I never knew there was a rule as to what exhaust goes to what engine.
So is the dual exit extension (similar to the M) some people have done within the law?

http://www.pistonheads.com/roadtests/doc.asp?c=2&i=27946

 

[ben g]

You do realise they're not actually the rules on exhausts, don't you?

If not, major fail :lol: it's just a pistonheads joke article.