Any time the intake plenum comes off the S62 V8 in an E39 M5 or Z8, the intake gaskets should be replaced.
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply