I understand that when you market a product, you look for anything that can be described as a benefit for using your product. Two things I have read seem to be of very little merit:
*Better exhaust clearance!
Huh? With TTI, Dougs, Hedman, Hooker and a few others, finding a header to fit your car with a stock K member isn't that difficult.
*Suspension tunability!
Again, with Firm Feel, Hotchkis, Helwig, Koni, Bilstein, Fox, etc, tuning a stock based setup isn't difficult. Ride height changes are not hard. Changing shocks isn't difficult.
I do appreciate the precise steering feel that you get from a well designed rack and pinion setup. My 280,000 mile 2007 Ram 1500 still feels and steers tight. The stock classic Mopar power steering, even with Firm Feel stuff in there, still has some freeplay. The wifes 2015 Challenger R/T has R/P and feels great.
I would LOVE to pilfer some things from the newer cars to integrate into mine. The independent rear suspension for one. In the Challenger, I can throttle through bumpy turns and the car stays planted. The solid axle 70 Charger wants to step out when I hut a lot of bumps.
I'd love to install the fantastic 8 speed auto trans! The car rarely ever feels like it is in the wrong gear. My 07 Ram feels sluggish at part throttle quite often. The Challenger rarely does. That 4.7 1st gear ratio gets the car moving in a hurry.