standard ARB size?
 

anyone know the standard rear arb size on a 53 plate blob sti. I want new bushes for it but I need the correct size

Think its 19F 21R
may be wrong but that rings a bell

cheers, anyone confirm this

Buy a caliper gauge and stick your head under the car and measure it, they are only a couple of quid.

still cant get an answer lol ive measured the bar and I get 20mm yet most of my online searchs suggest 19mm.. I found a supplier that states 19mm. ive been told 21mm by above.

my 20mm measurement is on the original bar but that may have a slight build up of grime over time I don't know. I cleaned where I measured but who knows.

I think the front standard size is 20mm and rear is smaller as standard.

My 06 WRX is 20mm at the front. I suspect they are the same.

I'm looking at bushes for the rear bar