Im looking at getting a cat back exhaust as ive just had a decat fitted and ive been looking around for off the shelf ones and ive seen the Blueflame one is a good choice for most and ebay seems to be the cheapest bet for these.
When i first got my 330d i took it down to my local custom/performance exhaust garage and asked if they could make a custom cat back for me. They can but they wanted to take it from a dual pipe system to just the one.
is this ok todo, or has it got the twin run system for a reason? if it goes down to the one pipe i presume the pipe needed will have to be bigger to make up for there not being two pipes anymore?
If its ok to take from a twin to a single run system. i can get the high flowing cat back made up for £200 fitted which is alot cheaper then the Blueflame.
Just need a bit of advice really,