Product Information

Silencer – DEPT4220
DEP 4 stroke silencers and cans have been designed to improve
performance over the OE power curve, while still complying with all
worldwide noise regulations.
The DEP Silencer comes with an aluminium mounted canister with an
anodised black finish or a polished bare metal finish (depending on
models).
The majority of silencers have a unique two stage inner core design and
bleed chambered front cap. These designs allow us to maintain high
performance while keeping to current noise regulations.
Most silencers come with laser cut 1.2mm stainless wrap round mounting
brackets. These hanging brackets are designed to help with easy fitment
and allow the silencer to flex. Please see diagram for fitting advice.
For re-packing and Q-insert information, please see the link provided.

Mid Section – DEPT4221
One part of the new DEP S7R three piece system is the mid section. This
comes with mounting springs to connect to the canister. The majority of
models are supplied with an aluminium spacer for use on the centre
mounted point, allowing movement and flexibility, an OE bolt is to be used
unless another is supplied. The mid sections header joint does not require
the OE gasket, it is a simple slide fit onto the header pipe.

Fitting Instructions

WARNING
During use exhaust systems get hot. To avoid danger of burning, do not remove
or touch until adequate cooling time has been allowed.
Loosen all silencer mounts and remove the silencer. Repeat this for the header
pipe. Ensure the OE cylinder gasket is still located in the cylinder. Loosely fit the
DEP header using original fixing bolts/nuts. DEP Header pipes that are sprung
mounted require the header pipes stub and flange to be mounted to the cylinder
then the header engaged and sprung mounted using spring supplied. Make sure
there is clearance from frame and water hoses. Install the DEP silencer; if the
silencer is a two piece silencer join the two parts and secure with the springs
provided. Slide the silencer over the head pipe and loosely fit the front silencer
bolt using the alloy frame to silencer spacer if supplied. If your product has a fixed
silencer body bracket loosely bolt it to the sub frame. If a wrap bracket/brackets
are supplied slip it over the silencer body line with sub frame mount and place bolt
in loosely (use DEP bolt and alloy spacer sub frame side of bracket if provided)
ensure that the silencer body is up right, fit the bracket clamp bolt and then
tighten, making sure the system does not touch the frame air box side panels
before tightening all the mounting bolts.
A silencer fitted under stress can cause failure or damage to the product. DEP
cannot be held responsible for any incorrectly fitted products.
The fitting to non-original equipment or DEP equipment is the responsibility of the
end user.

Notes:
This performance product is designed to replace original equipment in some
cases it is compatible with a OE equipment but best results are obtained when
used as a full DEP system.
Jetting on new stock bikes - use standard carb settings unless otherwise stated.
If any modifications or tuning (including using non-pump fuel) are carried out,
always check plug for correct mixture settings.

Q-insert/Re-packing – is supplied with each MX silencer/Can fitting instructions.

When washing or cleaning the motorcycle the outlet end of the silencer should be
sealed with a bung to prevent the ingress of water. 

(SO – Requires DEP Slip-On Silencers and Slip-On Mid Sections)