Coil conversion perches, who makes the nice ones?

[LaserSVT]

I ask because my 97 had them and the perch was just a square pice of metal with the edges bent to locate the spring. Not sure what brand though.
Sapperfires are the same way and his is Strutmasters.

The ones I just pulled from the GMAN car have these very nice billet aluminum ones that are custom fit into the spring and isolator. Much cooler design. Anyone know who makes those?

 

[Aquabrit]

Arnott.

 

[GMAN]

^ I concur. I knew that blue Mark wasn't a complete turd. Thar car had a lot of work done to it.