I am using the CG- Lok again in 2023. My 4C is equipped with GMS front and rear suspension arms, GMS anti roll bars, GMS rear hatch / wing combo. Rudi is great to deal with and wonderful sharing setup information. I also run Advan Wheels, Tarox Rotors and brake lines, and will be installing Nitron Shocks from Alfa9 Supply. Matt is also great to deal with. Looking forward to our season at Grand Bend Raceway in Ontario Canada which begins in May.