Just found this, guys got loads of cheap exhuasts for retros
www.ebay.co.uk/sch/glynnexs/m.html?item=360434518112&ru=http%3A%2F%2Fwww.ebay.co.uk%3A80%2Fsch%2Fi.html%3F_from%3DR40%26_trksid%3Dp5197.m570.l1313%26_nkw%3D360434518112%26_sacat%3DSee-All-Categories%26_fvi%3D1&_rdc=1&_trksid=p4340.l2562
www.ebay.co.uk/sch/glynnexs/m.html?item=360434518112&ru=http%3A%2F%2Fwww.ebay.co.uk%3A80%2Fsch%2Fi.html%3F_from%3DR40%26_trksid%3Dp5197.m570.l1313%26_nkw%3D360434518112%26_sacat%3DSee-All-Categories%26_fvi%3D1&_rdc=1&_trksid=p4340.l2562