I dont have a type r sub, i got the shallower type s and and a 600 watt amp for 50 bucks on craigslist, in almost new condition. I figured i would build a box and see how it goes. The sub i have in my truck now has a staggered height which i figured i would have to do when i built the box because people do sit on the back seat. Im buying some mdf tomorrow so.... we'll see