Just looking at the prices on Hennessey Performance | High Performance Upgrades, Parts & Accessories | Camaro SS, ZL1, F-150 Raptor, Corvette, CTS-V, Challenger SRT8, Jeep SRT8, GT-R for a buddy of mine that has a 6.1L Challenger, its like 10x the price for parts compared to our cars. $600 for a top swap for ours and $6K+ for a supercharger for the Challenger.