The following is a video meant to showcase Fluid MotorUnion's newest product, an exhaust (rear section only) for the E39 M5.
This system is made from 309 stainless and is fabricated by hand at Fluid MotorUnion in Plainfield, IL.
The exhaust is installed by cutting the OEM rear section and replacing it with the FMU piece. Clamps will be included for an air-tight seal, and the FMU kit connects to all the OEM hangers for a perfect fit, just like OEM.
Instead of using mufflers, the FMU E39 M5 rear section uses one pass-through resonator for each tailpipe. With a typical muffler delete (that's replaced by straight pipes), the resultant tone is raspy at best, and has a tendency to drone. The FMU's use of resonators in place of the mufflers allows the true sound of the S62 motor to stand out, with the end result being a deeper, more aggressive tone at heavy throttle loads while maintaining a great amount of civility during both start-up and idle.
This kit is a great idea for those looking for a cheaper alternative than a full exhaust kit, and also for those who are wary of deleting the catalytic converters.
The car featured in this video is otherwise 100% bone stock. Minus the "weight reduction" in the corner of the front bumper from unfortunate contact with what was left of a deer on the highway.
The retail version will come fully polished, as well.
Contact FMU for more details and pricing: mmarzano@fluidmotorunion.com
Dyno graphs are on the way!
Love it, might have to come down from Milwaukee to pick one up!
Sirheadly87 2 weeks ago
I love the way it tilts when its revved.
///M power baby yeaaaaaaaaaaaah
ILiquidCourageI 2 months ago 2
sounds great!
ryanthomastew 2 months ago
Awesome!
nitro561 2 months ago