i want to replace both drivers and passenger blades on my RB5, which sizes do i need?

WS45CEB - 7 - 450 mm / 18 inch
WS48CEB - 8 - 475 mm / 19 inch
WS50CEB - 10 - 500 mm / 20 inch
WS53CEB - 11 - 525 mm / 21 inch
WS55CEB - 12 - 550 mm / 22 inch

http://www.priracing.com/product.php/155

also, is it worth going for the sporza one over the regular standard wipers as above? http://www.priracing.com/product.php/153

 

get them from here mate, if not it tells the size u need. these are brill, got mine a few weeks ago

http://scoobyparts.com/acatalog/PIAA...NE_WIPERS.html

 

thanks!