As someone who frequently changes rotors, I'm thinking the time has come to replace the original 19mm caliper bolts. Can't remember the exact amount, but the dealer wants something like $24 a piece for these (ridicules). Does anyone have a source that can supply the right grade (strength) bolt for this application? I'm thinking I should probably change out my spark plugs as well. The car only has 20K miles on her, but most of them have been at the track. Anyone got a recommendation (I know, I know; this one's been covered a million times and I should just do a search).

 

You may want to try one of the Fastenal's around our area, they seem to have EVERYTHING whenever I go there. Other than that, I don't have anything for ya man. Good luck finding something tho.