Guest Geneb Posted December 15, 2006 Share Posted December 15, 2006 Hey Guys which Decat do i need and where from i have a J-spec 93 N/a and have an XS power 3" Cat back System is there 1 cat or 2 of 2 do i replace both? Quote Link to comment Share on other sites More sharing options...
SupraStar 3000 Posted December 15, 2006 Share Posted December 15, 2006 give Chris Wilson a call or e-mail Thats where I got mine from for my 93 NA Quote Link to comment Share on other sites More sharing options...
Guest Geneb Posted December 15, 2006 Share Posted December 15, 2006 how much did u pay? Quote Link to comment Share on other sites More sharing options...
SupraStar 3000 Posted December 15, 2006 Share Posted December 15, 2006 sorry mate, Can't remember! Think it was around £300 for both hand made. Quote Link to comment Share on other sites More sharing options...
Guest mk47 Posted December 15, 2006 Share Posted December 15, 2006 you'd need 2 decats. for a cheaper option you could always call JPS who make their stainless decats and usually have them in stock for the supra. their number is: 01908 367100 and are in milton keynes. Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted December 15, 2006 Share Posted December 15, 2006 You need the two, but don't go for the 3" on an NA unlike a turbo you will need smaller dia to retain some back pressure, or you will loose performance. Quote Link to comment Share on other sites More sharing options...
Dr_Doom Posted December 15, 2006 Share Posted December 15, 2006 you'd need 2 decats. for a cheaper option you could always call JPS who make their stainless decats and usually have them in stock for the supra. their number is: 01908 367100 and are in milton keynes. Does this place sell 1st decat pipes for an NA?.. I'm after one but the cheapest i've seen so far is £160 Cheers Quote Link to comment Share on other sites More sharing options...
Guest Geneb Posted December 15, 2006 Share Posted December 15, 2006 You need the two, but don't go for the 3" on an NA unlike a turbo you will need smaller dia to retain some back pressure, or you will loose performance. bit confused bud, will a 2.5" still attach to me 3" exhaust? Quote Link to comment Share on other sites More sharing options...
Lebsteif Posted December 15, 2006 Share Posted December 15, 2006 Yes it will fit, i have the xspower exhaust as well, fitted with a CW 2,5" second decat pipe. I still have my first cat. You will get a nice sound Quote Link to comment Share on other sites More sharing options...
Guest Geneb Posted December 15, 2006 Share Posted December 15, 2006 Yes it will fit, i have the xspower exhaust as well, fitted with a CW 2,5" second decat pipe. I still have my first cat. You will get a nice sound any performance increase? is it worth doing both cats? Quote Link to comment Share on other sites More sharing options...
Lebsteif Posted December 15, 2006 Share Posted December 15, 2006 There wasn;t a noticeble difference for me. I decided to go for second decat only because of my turbo project. The Downpipe will replace the first decat. Some people think the car will sound too loud with a double decat but thats personal. Some are driving around with a double decat and alternative exhaust headers and thinks its still too quiet (one of the best improvements you can get besides a turbo) Nic (import Pimp) is selling them for a great price. See: http://mkivsupra.net/vbb/showthread.php?t=83236 The header will replace the first cat as well. Quote Link to comment Share on other sites More sharing options...
GOGS Posted December 15, 2006 Share Posted December 15, 2006 I have a 95 NA. Will it still pass an MOT with just the 1st cat if i was to get rid of the 2nd one? Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 15, 2006 Share Posted December 15, 2006 I have all stainless 1st cat N/A removal pipes in stock, with the correct flexi section that's required, at £180 plus £6.50 P&P They will mate up to your HKS second pipe, albeit making it look a bit shoddy They are a bit of a loss leader as they are a nightmare to make up, but I guess the market won't stand a much higher price. I can e-mail you a photo of one if I can find it on my PC, my camera is away being fixed. Quote Link to comment Share on other sites More sharing options...
R Black Posted December 26, 2006 Share Posted December 26, 2006 On a jspec tt will a 3" 1st decat pipe fit into a standard system i.e. header & 2nd cat? I take i i will need a FCD & restrictor ring also. Quote Link to comment Share on other sites More sharing options...
CardiffSupra Posted December 26, 2006 Share Posted December 26, 2006 On a jspec tt will a 3" 1st decat pipe fit into a standard system i.e. header & 2nd cat? I take i i will need a FCD & restrictor ring also. Yes as far as i know, Yep you will need a FCD, I think you only need the ring if you have 2 decatts. Quote Link to comment Share on other sites More sharing options...
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