Best Aftermarket Suspension Set-up

racerjoe said

Man they have taken it easy on you so far. These threads are usually a blood bath of opinions. Anyway, my vote is HDK. Besides Denny being a great dude, his product is high quality. I've got at least 2000 miles on mine and 150+ autocross runs and haven't had a single problem.

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I think Denny has probably done the most out of anyone regarding the geometry of his set up, even including Bill Reilly at RMS who definitely knows a ton about suspension geometry as well, since he was the one that did the actual geometry assessment of the FMJ spindles to show that Ehrenberg was wrong about them. Maybe it's just that Denny interacts with people here so I know what it is that he's done, but he's definitely worked to improve his products based on feedback and analysis which is huge.

Of the coil over conversions out there the HDK and RMS are definitely the most well thought and proven. Which is not to say a coil over conversion is at all necessary, you can handle just as well or better without one and if you're committed to making changes to improve geometry you can do just as much with the torsion bar suspension as you can with a coil over conversion. Both have plenty of room for improvement whether it be a factory torsion bars suspension with stock parts or a coil over conversion right out of the box, as you know yourself based on the changes you've made to your HDK suspension and I know considering that my spindles are the only factory part in my torsion bar suspension.