Yes they did a pretty good job with the cleanup on them. I'd really like to try that intake manifold on my truck. I have the speedmaster air gap on there now and I've put it on three times now LOL and not looking forward to trying it a fourth time. I put it on originally and for the first time ever didn't get it sealed right and put it on a second time. Then the third time when I blew a head gasket:BangHead:....