letmeshowyou Posted April 10, 2007 Share Posted April 10, 2007 IK22's will be fine. I've got the NGK equivalent to IK24's in mine though. Link to comment Share on other sites More sharing options...
cheekymonkey Posted April 10, 2007 Author Share Posted April 10, 2007 IK22's will be fine. I've got the NGK equivalent to IK24's in mine though. I don't want to give my car something that's "fine" what are the *best*? Or does it not really matter with spark plugs? Link to comment Share on other sites More sharing options...
Sheefa Posted April 10, 2007 Share Posted April 10, 2007 The Iridum plugs are good for 10k apparently, that's what I have and they're all good so far after covering around 4000 miles Link to comment Share on other sites More sharing options...
cheekymonkey Posted April 12, 2007 Author Share Posted April 12, 2007 Here is a picture down the exhaust side of the engine. Is that a cat in the middle of a picture? Looks like it to me but would like confirmation. If it is indeed a cat then I am running 2nd decat only, which is still really loud. Would decatting this one make it even louder? Link to comment Share on other sites More sharing options...
Supragaz Posted April 12, 2007 Share Posted April 12, 2007 Here is a picture down the exhaust side of the engine. Is that a cat in the middle of a picture? Looks like it to me but would like confirmation. If it is indeed a cat then I am running 2nd decat only, which is still really loud. Would decatting this one make it even louder? Does look very Cat like to me mate. And Yes it would be a lot louder with a second decat pipe on there Link to comment Share on other sites More sharing options...
Homer Posted April 12, 2007 Share Posted April 12, 2007 Yep, thats a stock cat for sure. Removing the first cat on a TT won;t make much difference to the noise level, but it does make the car sound nicer Link to comment Share on other sites More sharing options...
cheekymonkey Posted April 12, 2007 Author Share Posted April 12, 2007 Yep, thats a stock cat for sure. Removing the first cat on a TT won;t make much difference to the noise level, but it does make the car sound nicer One thing to to note is that I have a custom exhaust - it's a straight through pipe from cat 1 to the back of the car, no muffler or anything. Would the noise level really not be affected that much? Also, to go BPU would I definately need to remove it? Am guessing Yes but want to hear your thoughts Mr Simpson. Link to comment Share on other sites More sharing options...
Homer Posted April 12, 2007 Share Posted April 12, 2007 Yes, you should remove that cat, its not good to have a restriction so close to the turbo with increased boost. Most aftermarket exhuasts have only one straight through silencer at the back, does yours have any silencer at all? Link to comment Share on other sites More sharing options...
cheekymonkey Posted April 12, 2007 Author Share Posted April 12, 2007 Yes, you should remove that cat, its not good to have a restriction so close to the turbo with increased boost. Most aftermarket exhuasts have only one straight through silencer at the back, does yours have any silencer at all? There is certainly nothing visible under the car, it's just one long pipe with the same diameter all the way up to Cat 1. I am assuming a silencer would be fairly obvious? Link to comment Share on other sites More sharing options...
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