I tried everything imaginable before beating on my $1000 headers of course. Mounts are good, no amount of shimming on earth could help the passenger side clear the torsion bar or driver side from clearing the zbar. Ya you said it biggest piss off was the Doug’s instructions meantioned nothing about the z bar conflict with the header And the passenger side header conflict with the torsion bar. I’m complaining about everything to do with Doug’s. Like I said for the price I was shocked how bad they worked overall. Sure do sound good but not fun/easy or worth it to me