Yeah, stock is neat in itself. The truck made a statement in 2004. A touch quicker in 2005 with 4:56 axle. However, picking up a 1/2 second with proven, simple, reversible and reliable bolt on's really makes an impact on overall drive-ability. Like I've stated before, my buddy with a 2017 392 Scat Pack Charger was COMPLETELY humbled after quite a bit of shit talking prior to running up against the Superbeast. From a roll or 0-120+, he had nothing for the RC. The visions of grandeur of showing me his new, beautiful taillights was immediately shattered and his view was full of big, black Ram wondering if he will even be able to catch up. The way a stock truck lays over rich at high RPM would have fell to the mighty 392 Hemi. Not so with an uncorked engine and a Torrie custom tune. :rock: Yeah, keep the stock exhaust, TB etc. If you choose to or when your done and want it in a museum, you can bolt it all back on.