Zugara Posted July 21, 2010 Share Posted July 21, 2010 Can someone please please explain about these different types of exhaust systems. Decat? Cat back? Bungs? Race cats. Ypipes.Ok get that one What happens to the Lambda sensors wiith a new exhaust? What will pass an mot or not? Its just Dont mean to sound like a complete mong here but which one would you buy and what brought you too that choice? Anyone willing to PM me their best price for plenum spacer plz. Quote Link to comment Share on other sites More sharing options...
MattMe Posted July 21, 2010 Share Posted July 21, 2010 Can someone please please explain about these different types of exhaust systems. Decat? Cat back? Bungs? Race cats. Ypipes.Ok get that one What happens to the Lambda sensors wiith a new exhaust? What will pass an mot or not? Its just Dont mean to sound like a complete mong here but which one would you buy and what brought you too that choice? Anyone willing to PM me their best price for plenum spacer plz. You'll never know unless you ask (or search ) Decat? Is where you replace your cat (catalitic converter) with a straight-through pipe, replacing the cats completely. This won't pass an MOT Cat back? The exhaust section from the catalitic converter backwards (not including cats) so mid section and back box. Bungs? I don't know! Probably baffles that go in the back box, sometimes removable. Race cats. AKA high flow cats. Allow more airflow through the cats and usually louder. Most will pass an MOT, although techincally I think they're supposed to be marked with a british standard, though doubt many, if any, would check. Hope that helps a little... Quote Link to comment Share on other sites More sharing options...
Ian Posted July 21, 2010 Share Posted July 21, 2010 Can someone please please explain about these different types of exhaust systems. Decat? Cat back? Bungs? Race cats. Ypipes.Ok get that one What happens to the Lambda sensors wiith a new exhaust? What will pass an mot or not? Its just Dont mean to sound like a complete mong here but which one would you buy and what brought you too that choice? Anyone willing to PM me their best price for plenum spacer plz. You'll never know unless you ask (or search ) Decat? Is where you replace your cat (catalitic converter) with a straight-through pipe, replacing the cats completely. This won't pass an MOT Cat back? The exhaust section from the catalitic converter backwards (not including cats) so mid section and back box. Bungs? I don't know! Probably baffles that go in the back box, sometimes removable. Race cats. AKA high flow cats. Allow more airflow through the cats and usually louder. Most will pass an MOT, although techincally I think they're supposed to be marked with a british standard, though doubt many, if any, would check. Hope that helps a little... Bungs are fitted in the tail pipe to reduce noise Lambda sensors are in the cats & not the exhaust, all hiflow/de cats for the Z have bungs to refit the sensors. MOT with decats = fail Everything else "should" pass Quote Link to comment Share on other sites More sharing options...
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