Do you need the new PCM/memcal if you install high ratio roller rockers and lifters to suit ECOTEC AND L67 V6? Siya March 01, 2024 09:28 No you don't. Your current PCM should be able to handle the upgrade. Related articles Can I use Ultra high ratio roller rockers (1.98:1) to suit ECOTEC AND L67 V6 in a VY V6? Do you have Rockers covers to suit Buick Comments 0 comments Please sign in to leave a comment.
Comments
0 comments
Please sign in to leave a comment.