for a new set of exhaust system including downpipe with sportscat (to passed emmision?) reason for asking this is that my car currently fitted with full de-cat system but for some reason all the section has been welded together rather than fixed with bolts so this must be a custom made exhaust i assumed [:@] im not a big fan of this and would like to replace to somthing else in the future, with cat if possible for mot purposes. My car also been remaped with ecutek if i change the type of exhaust will this damage my engine or this only apply to different size of downpipe only? Im new to all this as i only have my scooby for about 3 weeks and there is still so many things to learn, any help would be much appreciated.
cheers,