HKB Boss Kit - Nissan Silvia S13 (With HICAS) - ON-07 Model_Hoodies This is due to the

This is due to the standard restrictive system being replaced with a more free-flowing system with a larger bore

for very good reason

For seat brands such as Auto Style Border Bride Buddyclub Cobra Corbeau D2 Driftworks Koenig Mirco OMP Recaro Sparco Takata and just about any other seat that uses 290mm side mounts

Overall Length (mm) 480

HKB Boss Kit - Nissan Silvia S13 (With HICAS) - ON-07 Model_Hoodies This is due to theHKB Steering Wheel Boss Kits are Design and made Japan, with the widest range available for all Japanese Vehicles. HKB bosses are double drilled fitment that can be used on both Nardi Personal and Momo Sparco OMP steering wheels. All HKB boss kits are plug and play and come with all all accessories needed for the vehicle operations such as Horn, indicator self cancelling, airbag light cancelling, HICAS operation and cruise control function & other