Just been on the milltek website and it says down pipe must be fitted with Milltek cat back....??
What downpipes can be fitted with the standard exhaust?
thast rubbish. Purely to make you buy the full system from them. All you need is a reducer from 2.75" to 2.5"(for the GTI 200ps) and 3" to 2.5" (k04 TFSI) is all that is required to mate it to your standard system. My Pipewerx downpipe had the reducer built in and went from 3" to 2.5". Sounded great as well.
Janner- why would I need to go to stage 2 to fit a new exhaust? I have known people to fit a new exhaust without even having a remap. Do you mean its only worthwhile if I was to get a remap stage 2? Thanks
When you fit the downpipe, it removes the pre-cat and fits a free'er flowing 2'nd cat. This means that the lambda sensor readings on the exhaust will be outside the normal range and more often than not you will end up with an engine management light flashing up. This doesnt necessarily mean you need a stage 2 map, as a stage 1 car can have those sensors mapped out with no issues, but if your sticking on the downpipe you may as well go stage 2 IMO.
Quite alot of guys on here have run the Miltek with a reducer with zero issues, same with blueflame and pipewerx.