I am doing a 6 speed build your own kit (they don’t make one for the challengers) from keisler
the hydraulic clutch kit is ok to install I haven’t used it yet the pressure plate and disk they sent me were previously installed not used as far as I can tell but defiantly a returned item all the plastic was tore open and bolt and grease marks on the Pressure Plate. (I have a call into them)
There service is ok not as good as they say they are however I called them at 9am and I still don’t have a return call from them about a the clutch and a flywheel I ordered 4 weeks ago (they said it was in stock when I ordered it)
Therefore, if you don’t need any service they are ok to work with INHO.