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Are you planning on running a JB4 unit on the M240? Wondering if one can get away with a JB4 stage 1 (with 91 octane) on the newer B58 engine as i assume boost has already been upped to get the increased HP. I am currently running a jb4 unit on my GTI and like it. Just wondering if folks have played with the JB unit on this revamped B58 engine and if stage 1 would be pushing it beyond what 91 octane would allow. (91 is all we can get here, yes i could add e85 but that is uncommon as well.)
thanks for posting
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