VTT S55 / N55 Crank Bolt Capture e85 kit the MAD F90 M5 Primary

the MAD F90 M5 Primary Downpipes are the perfect upgrade

as can be found in the OEM product- this results in 40% less back pressure

changing this could result in a loss of performance so Eventuri kept the same volume to not upset the way the car drives in terms of power delivery

Engineers can tune the damper for increased support when turning and braking while maintaining composure over track curbing and rough pavement

you will need to remove the plastic fender seals (next to hood hinges) in order to expose covered fender fasteners

VTT S55 / N55 Crank Bolt Capture e85 kit the MAD F90 M5 PrimaryWorried about your S55 N55 crank hub spinning? Are all the reports of spun hubs making you nervous about turning up the power? Want a little extra security your S55 crank bolt wont back out leaving you with 24 bent valves? Here is an easy, and cost effective way to do that. The VTT S55 crank bolt capture. slips over the head of the crank bolt fully encapsulating it, and locks it to the crank hub, meaning it cannot back out no matter what. The VTT CBC