This high-grade lightweight titanium system, finished with hand-crafted
carbon-fibre tailpipes, weighs in at 35% lighter than stock and features
a pair of collectors cast in the in-house foundry. The Slip-On Line
(Titanium) comes with a specially developed Akrapovič control kit for a
complete sound experience. The sound character offers a rich tone at
normal cruising, rising to a deep sporty sound when the M3/M4 is driven
more dynamically. It serves up a perfect sound at all rpms, delivering
comfort and sportiness in one exhaust. A ground-breaking octagonal shape
has been fashioned from lightweight titanium with a carbon-fibre outer
sleeve for the tailpipes, and for more traditional buyers there is the
classic cylindrical design. The system delivers power increases of 8.0
kW (10.9 hp) at 6,000 rpm and a torque gain of 13.9 Nm at 5,000 rpm when
tested on the Akrapovič dyno against a BMW M4 Competition with a
standard stock exhaust. Remapping is not needed for this configuration,
and it fits all vehicles (OPF and non-OPF), but the ECE certificate is
valid only for cars equipped with an OPF filter. Optional link pipes and
downpipes are available for customers looking to change the exhaust for
closed circuit usage. An optional Akrapovič Sound Kit is also available.
With the installation of the optional link pipes, downpipes, and
Akrapovič Sound Kit, ECE type approval of the Slip-On Line (Titanium) is
no longer valid. An optional hand-crafted carbon-fibre rear diffuser is
also available to add an extra visual impact to the Akrapovič tailpipes.
The exhaust system also fits xDrive models. The Slip-On Line (Titanium)
exhaust system is ECE type approved for cars equipped with an
Otto/gasoline particulate filter. The Tail Pipe Set (Carbon) has to be
ordered separately as a mandatory part. Please choose UAKTP-CT/69 or
UAKTP-CT/68.
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