Well I was lucky enough to prototype HPS new silicone intake tube for the OEM box. Install is SUUUUUUUUUUUUUPER simple, no need to mod anything just remove your OEM elbow and replace it with the HPS unit. SIMPLE as that !! The HPS unit does make a little more of a growl under acceleration, throttle response is slightly better. Does make mid range power +4.3 WHP and +3.9 Ft./lbs. Best part about the unit is, there is NO heat soak !! Will probably make a little more power with a drop in filter, say K&N or if there is any other company that makes a drop in. Sorry for the crappy cell pics, but these are the best I have for now.