Anoyone have these? Are they pretty easy to install (wiring included)? Are they worth the $ to you?

 

Where did you get them from? I don't know about a mustang but I know a guy here with a ls1 camaro that picked up a tenth with them.

 

I haven't purchased any yet. I also know a guy with an LS1 (Trans-Am Firehawk) with electric cut-outs. He can control how wide to open the port with a switch. It sounds ridiculous when he opens it up right after the headers.

Didn't know if there were any performance gains to be seen as well. I figured you might lose a little TQ, but wasn't sure.

 

with my cutouts open I can easilly tell that there is a power loss.