Sure that applies of your gen 4 wasn't dyno'd at the same tikme as your gen 5 and still made more power :( none of the variables apply here since they were done 10min a part
Btw, who's stacks are you using?
Jetprime, Brock got a test unit from them and dropped it in. The company claimed it made 5 hp there. Even with fuel tuning best we got was 2. So unless your racing and need every hp, not worth the couple hundred for it. Mine was free so no complaints on this end.
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