My RX7SP build up

[RX SE7EN]

Looks great. Why are you making the adapters instead of true coil on plug with just a shortened rubber boot over the coil and plug?

[RICE RACING]

Originally Posted by RX SE7EN

Looks great. Why are you making the adapters instead of true coil on plug with just a shortened rubber boot over the coil and plug?

These popular coils will not fit axially using that simple version of COP.
ALSO that way does not have a robust connection.

Rubber boots degrade over time, this system is designed for LIFE TIME performance, its the ultimate, never buy another lead, boot, cracked COP boot etc etc.

So design fitment and quality is reason its not the way I did it on my first system.