got my remus centre pipe (race pipe) fitted on saturday,
it wasnt as easy as expected, firstly the front connection had rusted together so needed to be grided off, then both of the rear nuts had been welded out of line with the holes so needed to be drilled through and new nuts/washers/bolts to be used, but was all fitted very well,
so i can say 100% the remus pipe fits a std pipe perfectly and sounds loads better,
dont notice and power gains (but i wasnt expecting any tbh) but does sound nicer,
has a nice deep "rumble" when at idle and a deep "roar" when pulling away, both are pretty quiet but are noticeable and definetly makes a much nicer sound over standard.
I would reccommend it to anyone who can afford near on £80 for the pipe (£68 from roadrunner +£10 deliver neat day) who wants to improve the sound in a subtle way.
I also got the veccy pipes yesterday which ill fit when i can (can someone please give a link to a how2 if there is one)