a lot more people are getting them on their sentras, and some have shown dyno results of 10-12 hp. what exactly is it, and what is a fair price to get it done…
it is a machine that cuts 5 different angles in the valve seat and valve. It helps the flow of the head. I wouldnt take the head off just to get it done, but if it is already off go for it
radius valve job is even better, but more dollas
what is a fair price?? and who can do it on here???
If your looking for more power why dont you just spray it?