I was looking at other vendors in the reviews section and found none on Justin aka GrimmSpeed, so I thought I'd start it off.
Customer service is way beyond excellent, as Justin goes far and above all expectations:
-replies to PMs in a timely manner; great communication before/during/after order
-never hesitates to give advice and help if asked
-straightforward with suggestions on projects
-willing to 'take care of you' if at all possible, if core is available he'll get it out to you so little to no car downtime
My expericence so far with GrimmSpeed applies to:
-Massive Port TD04.
Great pricing ,fast shipment and product is great as expected for both x-over and turbo.
Also looking out to expand not only his great port and polish skills, but also to provide new and price conscious products; i.e. hood dampners, Phenolic spacers.
Thanks for everything Justin!