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FatLad said:
Result - nice yet subtle increase to exhaust note and definate feeling of better breathing and more power.
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Ah-ha!
A definate FEELING of more power. Have you dyno'd it to see?
I have a Milltek cat on my Mk3 Golf GTI 16v...actually a Corrado VR6 Sports Cat...and a set of Milltek Cats on my S3.
Both make the cars sound a bit deeper, both do seem to make the car a little peppier to drive...but unfortunately neither actually gave anything by way of power gains. Nothing. Nowt. Nadda.
Makes you wonder doesn't it?
In saying that...I still think it's a nice upgrade...almost the same sensation as when you lighten the flywheel...but unfortunately on my 2 cars, and all the others I have seen, there were no power gains to be had.
I still like it as an upgrade, and would do the same again.
The A3 T may be different, of course.