Wow that is strange. I got my type r's sealed because I listen to a ton of rock. I am doing 144.3 on the tl and 140.2 on the 190 a/c. I am only running a tad over 500rms to them too. My sealed box is a t 1.75cft though. If you want output though then do ported, although I heard 3 12" r's in a ported box in a 4runner and wasnt impressed. He was doing high 140's but still. I guess it is true that you need to get the tcab box to get them to slam.//content.invisioncic.com/y282845/emoticons/eyebrow.gif.fe2c18d8720fe8c7eaed347b21ea05a5.gif//content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif