ChrisUUC Posted September 18, 2011 Share Posted September 18, 2011 At the minute im running HFC's stock hr y pipe and Nismo exhaust system. Want to add a XYZ pipe with race cat but worried about it the exhaust becoming really loud/raspy. Anyone running something similar and could shed some light ... Chris Quote Link to comment Share on other sites More sharing options...
Wasso Posted September 18, 2011 Share Posted September 18, 2011 Not sure if the sound would be far different from the revup, running XYZ pipe and decats, stock exhaust. No rasp and great sound Quote Link to comment Share on other sites More sharing options...
Neilp Posted September 18, 2011 Share Posted September 18, 2011 the nismo exhaust will probably never become raspy, especially with a race cat. If you decat'd it then it may be a bit more louder but dont imagine a great deal of rasp due to the center section being 3" and generally thick stainless. Cheaper exhausts with 2.5" center section with thin stainless will rasp more Quote Link to comment Share on other sites More sharing options...
Adam@Z1auto.com Posted September 18, 2011 Share Posted September 18, 2011 the nismo exhaust will probably never become raspy, especially with a race cat. If you decat'd it then it may be a bit more louder but dont imagine a great deal of rasp due to the center section being 3" and generally thick stainless. Cheaper exhausts with 2.5" center section with thin stainless will rasp more it becomes raspy if run fully decated - its a natural byproduct of a single pipe exhaust and test pipes why would you consider a Y pipe with a cat when your car has 2 cats already? makes no sense and you're going to decrease performance, not increase it Quote Link to comment Share on other sites More sharing options...
ChrisUUC Posted September 18, 2011 Author Share Posted September 18, 2011 So then xyz with decat would advise?? Quote Link to comment Share on other sites More sharing options...
Neilp Posted September 18, 2011 Share Posted September 18, 2011 So then xyz with decat would advise?? decat the car, sell the hfc's. buy xyz pipe with race cat.... Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted September 19, 2011 Share Posted September 19, 2011 If your running stock exhaust I would just run full de-cat , it wont be to raspy , I have tuned a few cars running de-cats. Mark Quote Link to comment Share on other sites More sharing options...
ChrisUUC Posted September 20, 2011 Author Share Posted September 20, 2011 Thanks guys. Mark think ive decided to decat and put a race cat in the Y pipe. Are the ART pipes the best decats? Or are they all basically the same? Any chance you will be over in Ireland anytime over the next few months to tweak my map on the zed? Might have a mate around the same time looking his DE mapped also. Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted September 21, 2011 Share Posted September 21, 2011 Chris, I do not have any plan to be in Ireland in the near future. To bo 100% honest it will be better to have a trip to the UK , if you want me to come to Ireland to tune yu need to pay for my flights/travelling time and the dyno time at TDP minimum would be far cheaper to travel to the UK. Mark Quote Link to comment Share on other sites More sharing options...
JB350 Posted September 27, 2011 Share Posted September 27, 2011 Hi Chris, If you haven't already bought your de-cats I have a set of H-Devs I took of my 03 de you can have a play with. I had them with a stillen true duel and whilst the sound was immense I couldn't live with the drone but to be fair the stillen is bleedin' loud on its own. Jonny Quote Link to comment Share on other sites More sharing options...
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