which exhaust down pipe to fit?

need a bit of advice,been looking at replacement down pipes as mine has a little blow,but looking online some say fit 1.6 to 1.8 and show upto the 135 bhp version but not my 160vvc,confused is there a difference ? i assumed all six bolt versions were the same or am i wrong?

ohh and are the stainless ones on ebay any good? ive already got a scorpian back box fitted... thanks guys

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