a18eem Posted September 23, 2005 Report Share Posted September 23, 2005 i have a SKN remap on my s3 and a milltek cat back exhaust. has anyone upgraded their cat? which one should i go for? are there any real/big power gains? how and when will i feel the difference? also thinking about a haldex upgrade, any comments ?? anybody...??!! Link to comment Share on other sites More sharing options...
danksy Posted September 24, 2005 Report Share Posted September 24, 2005 On the cat front, it's unlikely you will get any gains unless you have a map that takes account of the higher flow capacity. Rgarding the exhaust upgrade, I have had a couple of Millteks, both on the TT's I had. The Milltek made the car have a nice rumble to it, without being too boomy, and i think improved throttle response. So I would recommend it! Not sure about the haldex upgrade, do you mean a haldex controller upgrade? Link to comment Share on other sites More sharing options...
DuncS3 Posted September 24, 2005 Report Share Posted September 24, 2005 I would put the Haldex upgrade bottom of the list of upgrades - look at suspension and especially ARBS first Dunc Link to comment Share on other sites More sharing options...
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