Ive a BMC CDA on mine mate. Very nice sound and improved response. I got mine off-
http://www.venommotorsport.com/shop/index.html
Must too much power for normal use. lol.![]()
Its just air filter, not booster controller:w4nk:

HERE ARE SOME VIPER KITS - THESE ARE THE BEST, AND ARE THE CHEAPSET COMPAREC TO OTHERS
http://www.edworthys.co.uk/prodlist~catID~12438~product_category~Seat Leon Mk1.htm
D_MCa - was the BMC CDA easy to fit, and is it any good?
Easy enough to fit just make sure everything is secure and sealed so no cold air can escape. Yip very good ive my leon chipped and once I put the BMC on it was a lot more repsonsive and had a lot more lift in all gears. Works well with my chip.