From what I'm reading, both use high quality races, NCT or QA1. Both are made in the U.S.A. and the SPL's seem to have more locking redundancy. I'll contact Kyle, he had a very good price on the SPL front upper arms.
I'm not convinced the extra engineering will make a difference which is why I'm looking for information as to just what makes them higher quality outside of sway bar clearance.
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'13 Audi RS5 Misano w/mods-The Red Mist
'13 G37 IPL-SOLD
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