I would recommend a 2.25 inch Magnex Cat-Back system. Depending on your state of tune of engine, if you intend on going mental like some of on here with power in the range of 180bhp+ then you should go upto a 2.5 inch system. Magnex come with nice oval tailpipes. The chap who ran Magnex now runs Milltek and i'm more than happy with my nice new shiney Milltek.
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