EVIL ENERGYAN10 10AN Flare to 10AN ORB Male O-Ring Boss Fuel Pump Rail Adapter Fitting Aluminum Black Pack of 2

compared to Vibrant or Russell brand this is the same function and better price.

I am concerned with this review, because In my application (derale transmission cooler) these both leaked, badly. But whose fault is that? I replaced these fittings with 'genuine derale fittings' and everything worked great, no leaks. But that still doesn't tell me are the derale fittings non-standard for their application (which would be there fault since there is a standard for these fittings), or was there something wrong with these fittings. I have had several AN fittings and AN tools from this company, and they all worked great except for this pair, so like I said, not sure if I can blame the fittings or not.

I was very excited to finally receive my 10an fittings to finish my car build. All I needed were these fittings on my catch can to be able to go to the tuner. How exciting! I got my order, nice and quick, go downstairs to put it on my catch can, and!!!!....there was nothing there.There was an envelope, with a paper envelope inside, with another tiny black EVIL ENERGY envelope inside, completely sealed, with nothing but air. How could you do this to me!?!?!?Bright side, the black EVIL ENERGY packaging was quite nice. Unfortunately can't quite tune my car with it...

Used these fittings on my valve cover breather setup, good quality, they fit a little on the tight side, the nut side is bigger then most other fittings, so check clearance if threaded hole is recessed..

Order a few things from evil energy and has been very consistent with quality products.