Fits well and doesn't leak, didn't provide a huge improvement in performance over my plenum spacer aside from no vacuum leaks. I did notice some molding flash that had left a 3mm lip inside the elbow from the throttle body and another lip where the neck joins the main part of the plenum. The rest of the molding was fine, with no blemishes. Supplied hardware was good and the instructions helpful. Worth the price, but could be tidier.

Well made, instructions were ok, I cannot say I noticed much performance gain (seat of pants). Engine cover will not fit with my Rev up and the plenum. I have Megan test pipes with resonators also.