I know this has been asked before but please humour me. I've the C63 booked in this Tuesday too have the Milltek secondary catalyst bypass fitted (anything too look out for when it's being fitted?)? I've been told I would be better getting a remap done at the same time but am a little hestitate as there's still 10 months MB warranty left on the C63 plus I really don't want too start going down that slippery slope again by modifying the hell out off it and end up falling out off love with it like I did with my Evo IX. I think it's quick enough for what I us it for but at the same time I'd like it too sound a bit more meaner. Any input would be great, good or bad.