ZZP isn't well liked around here for these kinds of reasons.
Yea I'm not a big fan anymore this would be why I was forced to buy headers... After there pos rear plog leaked because there welder warped the flanges...
00 Grand Prix GT, top swapped, .020 FMP, GT1 Cam, SFI Crank pulley, SSM90, 3.3 MPS, ZZP ported Gen 3/LIM, ported heads, #90's, N* TB, SLP Intake/Headers/Catback, F-body brakes, KYB AGX, Aeroforce, AEM, 93 octane.