Designed for RB20DET, RB25DET (Non-NEO) and RB26DETT engines, our billet adapter kit makes it easy to upgrade to genuine Hitachi R35 GTR ignition coils. This proven setup delivers stronger spark, improved reliability, and long-term durability—solving common ignition issues found in aging factory coils.
Complete kit with wiring harness and genuine Hitachi R35 coils
Billet adapter only (available separately)
Choice of finishes: Black, Blue, Purple, or Red
Trusted by RB enthusiasts worldwide—built to perform, built to last.
The billet adapter is available on its own here.