Dr Euro Introduces the one and only 3.5" Catless downpipe for the F10/F12/F13/E70N/E71/F07 N55
platform - Made completely in the USA from 304SS. Dynojet numbers show an increase of 19WHP and 18WTQ – a 6.5% increase over stock (HUGE increases at 3500rpm of 24wtq & 36wtq). This direct bolt-on exhaust pipe eliminates the primary catalytic converter and relieves pressure behind the turbo. This decrease in pressure allows the turbo to spool more efficiently causing an increase in performance and better fuel efficiency during economic driving. You can audibly hear the difference as the turbo spool becomes more present and turbo lag is practically obsolete. For off-road use only.
