I've bought quite a bit of stuff from them. Intercooler wise I ended up replacing it asap after purchase. It wasn't cooling the air charge at all. I didn't even bother returning it since it was cheap enough we just used it for target practice. When it comes to piping with them be sure to check the wall thickness. The 3.5in piping I bought from them was excellent but only because I knew the bends, and wall thickness I needed. And they got it for me. Otherwise the generic piping kits they offer are thin, and cheap. With CX you get what you pay for.
Check out
http://www.siliconeintakes.com/ they are basically the same price. But their customer service is alot better. Takes roughly 2-3 days for items to get delivered. But if you have a problem they will go outta their way to make sure your taken care of.