Dynamic Performance Tuning

[Jonclark]

Hi guys, Im looking to order a re-ring kit for my 93 stock KAde and found a great price from a place called Dynamic Perfomance Tuning out of California.
I was hoping maybe someone here could tell me whether theyre legit or if I should look elsewhere?
Forgive me if this kind of post isnt allowed or is in the wrong place, Im very new to using the forum for anything more than reading other peoples posts.
Thanks in advance for any help.