[Dackelone]

Official 1M Coupe Exhaust Specs:

2 systems:

• "Slip on" axle back
• "Evolution" (catback without downpipe and manifold) [pictured below on IAA photos]

Hard facts (Evolution catback system):

• +15hp
• +19Nm
• -16Kg weight

Also available is a downpipe with modified cat but this requires a ECU modification

__________________

Exhaust clips:

Photos from IAA:

Per Drillslinger: the system shown is cat-back ("Evolution" system) with resonators and the valve option. When the valve is closed exhaust gases go through the muffler and out the inner tips. When open, the muffler route remains open but the path of least resistance becomes straight out the drivers outer tip and across (over the muffler) to the passenger side outer tip.









































Drillslinger's pics:



































Here are those pics from the Akrapovic website...

http://www.akrapovic.com/car-exhaust...on-b5895121f1/

Carbon tips...

Titan tips...