Quote:
Originally Posted by talkingcars
One day someone will do a back to back power run with a working one and a gutted one (and maybe a rattling one) so we can actually see which gives what power graph.
Until then I remain doubtful.
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I know a few people have done it and said they've not noticed any difference but surely without the butterflys the car is running as a v6 all the time which will deffo hurt your mpg's at low revs.