Got a heads up of a good friend of mine over at Briskoda about the pre-cat removal that a fair few people have been doing to their TFSI. Removing the pre-cat will not affect your MOT, the pre-cat was fitted to aid in the cold-start emissions, which isn't tested in a UK MOT. Reported gains are: - Turbo spools up quicker - More Turbo Sound - Deeper Exhaust Sound - Reported increase in economy of around 5mpg! Looks like something you can do yourself quite easily given basic mechanical know-how and are good with a hammer and chisel think I'll do this when I get a bit of free time. I know my 1.6FSI was also fitted with a pre-cat but I'm not sure how it would affect these engines as the 2 threads I've read on Briskoda.net and mk5golfgti.co.uk were aimed solely at the 2.0TFSI AXX/BWA engine. Threads can be read here: Pre cat removed - BRISKODA.net - The Skoda Forum and Community Pre-cat. . . . . REMOVED! Thoughts anyone?