Exergy LML Stainless 9th Injector Plug w/ O-RingThis plug serves to block the unused fuel return loop on the CP4.2 when a 2012-2016 LML engine is converted to a CP3. Unlike the CP4.2, the CP3 doesn't accommodate the extra return plumbing. Failing to seal t
Exergy LML Stainless 9th Injector Plug w/ O-Ring
This plug serves to block the unused fuel return loop on the CP4.2 when a 2012-2016 LML engine is converted to a CP3. Unlike the CP4.2, the CP3 doesn’t accommodate the extra return plumbing. Failing to seal this part of the return system can lead to fuel leaks, difficult starting, or diminished performance.
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