As some of you may know ive fitted a hybrid turbo xspower mani and downpipe, wellycooler forged Rods and a few other standard mods, few things the most annoying of which is the support coming off the downpipe onto the subframe actually sits on the subframe support bracket creating the most annoying vibration/rattle can I remove the support altogether or does this put the exaust under undue stress? Secondly I'm getting the fault code 16804 which is to do with rear O2 readings I believe my cause of this is that the sleeve that joins the sports cat to the standard system is not air tight an sucking in air??? And finally my fuel consumption seems quite dodgy I'm getting 0.6% additive and -2.3 multi on block 32 don't know if this helps much its just seems as if I'm dropping 5miles on the dis when I've only went a few hundred metres just wen cruising. All in all a lot less issues that I thought I would have. Awaiting 550 injectors and hopefully getting down to r-tech this month/aug all the way from Glasgow.