Evening all. i have a 2004 lcr, next week im ordering my blueflame exhaust so im not limited to rear arbs. i have got my 23mm front r32 arb from the dealer. mate works there so got it all for 60 quid. now which rear arb should i go for to best suit the front. i want it to stick to the road . should i go 28mm or 25mm? and what make seems to be the favorite. thanks alot james