I've ran the Heelclickers in my RX-1 but ended up switching to Speedshop's CPR Stage II kit. Biggest factor in switching over was customer service. Matt was always available to provide assistance while you're tuning or adjusting the kit. Unfortunately, the same did not prove true with SuperTorquer. It was because of that during the tuning phase and with the addition of the ECP kit, I decided to go with a proven kit that also incorporated the filters. I will say this, the HC kit was an improvemt over stock; as long as you addressed the 03 stock track. There have also been reports of the clutch arms breaking. I did have to use a Dremel and remove a little material from the moveable sleave so that there was sufficient clearence at full shift out. I don't know if this would of contributed to those failures or not but I did not experience it. I also ran their secondary Heel-X kit. Together, there was definitely a difference between it and stock but after working with Matt, I've got to say we've got the CPR kit running a lot faster.
