I put a fosgate punch, stage 1 in there from crutchfield. the stock one sounded much better. tighter, and alittle boomer. me and my buddy were suprised. He's got a new EVO with the best infinity system they stick in there and its no contest, the svt is way louder and much better bass. he went and picked up a alpine deck today to replace his. lol.
Also, i had to make an adapter ring to space the sub outta the box cuz the box is too shallow. acorrding to crutcfield, they dont have a sub that is shallow enuff to fit the stock box