Davis Unified Ignition Rev Limiter - Works w/ All Davis Unified Ignition Distributors RU002003M recommend using a lubricant with

recommend using a lubricant with 0W-40 viscosity grade and at least API SM for most of their sporty vehicles like for example the NISSAN GT-R

Connectors

2005-2016 Chrysler 300

Bearing measures 3

Air Filter cleaner solution and BBK Blue Re-Oil so you can re-new your BBK air filter

Davis Unified Ignition Rev Limiter - Works w/ All Davis Unified Ignition Distributors RU002003M recommend using a lubricant withD. U. I. Rev Limiter Compatible with All DUI HEI Distributors Includes 3000, 6000, 7000 and 8000 RPM Rev Limiting Chips Protect your engine from over revving with the DUI Rev Limiter. The D. U. I. Rev Limiter drops one cylinder at a time very smoothly. This prevents fuel from loading up on the plugs. This also avoids backfires and engine damage. Set your RPM limit with plug in modules. a 6000, 7000 and 8000 RPM module is included with the rev limiter.