Quote:
Originally Posted by clubspec330i
Sheharyar_rr, did you get a chance to install JB4?
I did a back to back comparison of my wife's M550i (325 miles on odo) and my ESS F80 (15k on odo). While M550i was very strong throughout but F80 pulled harder through all the gears and doesn't seem to drop off. ESS F80 may have a slight edge on stock M550i. I am curious to see what M550i w/ JB4 will do.
Let us know please.
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Yeah I installed the stage 1, not the full JB4+BCM. Check the latest thread I posted with the 1/4 mile number. Tuned F80 should def pull harder than a stock M550i either ways.