Quite impressive when nothing is moving and they are protected by a 10 mm. fiberglsss cover!
I had real bad smell in garage Smoke test found crack in rollover valve Replaced both Now only mild smell Waiting for charcoal canisters to arrive seems there is more then one part number for the 550 (per my mechanic)ordered wrong ones first Wish there was a cross over reference for them we ll see if that helps when they get installed
