DO U COMPETE? OR R U GONG FOR JUST GOOD SOUND? SEALED BOXES SOUND GOOD,BUT THATS NOT FOR ME.I WOULD ADD A SUB AND GO FOR A PORTED BOX,THEY POUND SO MUCH HARDER,I WOULD TRY TO FIRE SUBS UP AND PORT BACK,OR FIRE BOTH UP NOT TO SURE BECAUSE I HAVE ONLY DONE WORK ON 3 OR 4 JETTA'S IN MY TIME.. IF U...