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.
Without going for long tube headers or a full exhaust the secondary cat delete will make little to none what so ever power wise so I would not worry about a remap for that. If you are worried about warranty go for a Eurocharged remap and spend the extra to buy the handheld unit which will let you put the stock map back on if you need to take the car in & then when you leave you can put the remap back on. Its easy to do yourself and takes a few minutes.
I hear you. - My Nissan is pretty heavily modified now, and in some respects that's ruined it. It's much more fun to drive than it was when I bought it, but the suspension is tighter now and the exhaust is louder... and my wife refuses to travel in it any more. I suspect I'll have to let it go at some point fairly soon, and resist doing the same thing to the CLK.
