i was wondering how many people have decat'ed there s3? and what sort of gains you get?, also weighing up the best way of doing it?
im looking to get a milltek performance exhaust for my s3, was only going to go for a cat back(due to budget)
so in terms of a cat bypass i was thinking of getting a cheaper one on ebay rather then spend alot more money on a milltek(or alike) one, i did a quick seach and it seems that space is an issue and it may not be the best idea going cheap as it may be a ***** to fit...am i correct??
that got me on to thinking - it the bore diameter of the stock cats and pipe are large enough - then why not grab a second hand stock cat and pipe and simply gut the internals of the cat and use that??
let me now your thoughts guys