I just wanted to tell you what you probably already know, Superformance makes some of the best gaskets out there! For several years I have struggled with intake sealing on my 528 Hemi,I have run Felpro, Mr. Gasket, and about anything else I could find, they would never stay sealed and everytime I tightened them down, they went down a bunch. I finally ordered some from RoadHazard, and they sealed great! It has been several months and last night I remembered to check the torque on the bolts and they were dead nut on. I torqed them when I put them on and once more after several cruises, that's it, and they are rock solid! What a nice change and no more mosquito fogging when hard on the throttle! A great product!