My engine is stock internally , but I have the following bolt ons:Form and Function Ported intake, BBK throttle body, Volant ram air, MoFo headers, true dual equal length catless exhaust with an X-pipe, twin Borla race mufflers, 170 therm, underdrive pully,JMB battery relocate kit, QA1 shocks front and rear, CalTracks, McLeod aluminum flwheel and twin disc clutch, JTS Venom coils and wires, JTS Venom shifter and a custom tune by Chris at DC Performance. I removed my front sway bar,I have fiberglass front fenders, carbon fiber hood, no spare, no spare carrier, no tow bar, and on race day I remove the bed cover, tailgate, seats and console, subwoofer, package tray and bolt in a stock cloth manual seat from an 03 Ram. I have a set of lightweight doors (from the 03 Ram) that are completely gutted with only a lexan window and outer skin (no mirrors,door panel,glass,speaker,side beam, window mechanism, or inside door frame.). It takes about 12 minutes to change both doors and saves close to 200 lbs for the pair. I also have Bogart 18 x7 front wheels and M&H 390-40-17 Drag radials on Weld racing 17 x 10 wheels. Oh, and a Hurst line lock. Truck is an 04 RC with 4.56 gears and has 60,520 miles. I almost forgot...I have cryoed and polished spider gears, getting ready to try a cheater slick for more traction.