jeebus! $450 for the QA1's (plus $65 for their eccentric bolts) for 3 degrees of caster! for $300 mas at least you get adjustable with the hotchkis, even if you have to take them off (makes face).
You shouldn’t need the QA1 eccentric bolts unless your factory ones aren’t any good. And you should be able to achieve more than +3° of caster with the QA1 UCA’s too.
