herbiemercman Posted March 23, 2016 Share Posted March 23, 2016 When i had my NA/T done, with a full decat, i asked for the OEM silencer to be retained, it has the two pipes entering the silencer from the large pipe which is connected to the down pipe from the turbo. I retained the set up as it is all stainless steel apart from the OEM silencer and it has a good solid burble sound. My question is, will i need a re-map if i replace the system with say a three inch "Japspeed" ? like the one advertised in parts for sale. I ask this as the NA/T man said the car had to be specially mapped to my OEM system and it was not the usual big bore types he was used to. I don't want the fueling to go off, and i can just replace the OEM silencer when it fails, it is 8 years old. I am also anxious about my imminent MOT test for emmisions, all be it i am aware that imports get the low readings default values.What experience is there in the club for the decat MOT ? Herbie. Quote Link to comment Share on other sites More sharing options...
Style Posted March 24, 2016 Share Posted March 24, 2016 I wouldn't have thought you'd need a remap. Back pressure is about the only thing that'll change won't it? If your car is pre 1996 it'll just get a standing idle test and should be fine as long as it's warm. People seem to pass no problem with a fully decatted NA-T. I have a 96 so the regs are stricter for mine, not looking forward to MOT time! Quote Link to comment Share on other sites More sharing options...
herbiemercman Posted March 24, 2016 Author Share Posted March 24, 2016 Thanks Style. I was not aware of the standing idle test, i will have to make sure my local MOT garage guy is familiar with the rules for these cars. All the cars i have seen on the test are reved to 3k RPM. Quote Link to comment Share on other sites More sharing options...
tony1 Posted March 24, 2016 Share Posted March 24, 2016 I reckon you should go for it. Lol Quote Link to comment Share on other sites More sharing options...
herbiemercman Posted March 24, 2016 Author Share Posted March 24, 2016 I think you exhaust is a bargain but i have had a close look at my set up today and the OEM stock silencer is in very good condition and the rest of the pipes are stainless steel, so i have decided to keep it as it is and just replace the silencer when it corrodes, the stock chrome pipe on the silencer looks quite neat and good sound. Changing the subject, your car looks very good, quite close to the sort of stock look which i have, is the bonnet vent an add on, or a different bonnet? I would love to buy this kind of vent and open an air way to the engine, are the vents available as an add on? Herbie. Quote Link to comment Share on other sites More sharing options...
Max5437 Posted March 24, 2016 Share Posted March 24, 2016 The bonnet vent is a stock item on UK cars Quote Link to comment Share on other sites More sharing options...
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