PST steering boxes

I bought the 16:1 manual box, and did not check it as closely as I should have before putting it in the car. The unit was set up so tight It required two hands to get it off of center once off center not too bad. I needed to Clearance about a 32nd of an inch off of the casting to clear the headers. When I called pst they said if you adjust the unit you void the warranty. If you modify the unit you void the warranty. NO Iwould NOT buy from pst again.