Hey,
I would like someone from Z1 to take a look at the Intake manifold I received from them. I installed it 2 days ago, along with a bunch of other stuff, and it seems there is a crack between the two parts of the plenum that they glued together. I went to a dynojet tune and they told me that Bank 1 (passenger side) is running lean(around 11.5:1) - a.k.a. Vacuum leak. Any thoughts? Thanks.