KTM 85 SX 2007 DEP Muffler Exhaust Silencer

KTM 85 SX 2007 DEP Muffler Exhaust Silencer

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DEP MX Silencer


  • Improved power and throttle response to OEM silencers
  • Muffler is easily repackable with DEP muffler packing


Product Information:

DEP 2 stroke silencers are designed to fit OE and DEP front pipes. The silencers are manufactured with a polished aluminium outer canister and a mild steel internal perforated core, surrounded with a high temperature Eglass packing. All silencers have been designed as a performance enhancing product for optimum power increase, we advise this to be used with a DEP front pipe. 

2 Stroke Silencer Fitting Instructions:

Loosen the silencer mounting bolts from the frame and remove your original silencer from the bike. Install the DEP silencer, making sure it does not touch the subframe before tightening mounting bolts. Retain any rubber grommets/sleeves from the original silencer and refit on your DEP silencer, if required. All the exhaust fixing points should be slackened and then fully tightened allowing all frame mounting points to line up exactly. A silencer fitted under stress can cause failure or damage to the product. DEP or Firestorm 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.

Please Note: Picture for illustration only. Actual item may vary between models.


SKU: DEPT2801_4

Shipping Details

At Firestorm Motorcycles we aim to get your order out the door as quick as possible. Generally, most orders are dispatched within 1 working day (not including public holidays, weekends etc). Some items will come from via another warehouse so may take longer depending on the shipping method chosen at checkout. Most delivery times 3 to 5 days, except remote regions which can be up to 2 weeks. Express is available on most items which usually is 1 to 2 days delivery. (some bulky goods excluded).  Express and courier services are often an “Authority To Leave” request. If you are not home at the time the delivery reaches your address, the driver will simply leave your parcel conveniently at the location, so keep your eyes peeled for your order as it is your responsibility to collect it once it has left the courier’s possession! Some drivers chose not to leave the goods and may leave a calling card with contact details to arrange delivery/collection.

If your item has not arrived in good time, always check at your local post office first before contacting us as we have no way to check that. If your item has gone by courier, please call they courier company and they will be able to help you locate it.

If you have no luck there, please contact the team at Firestorm and we would be happy to assist.


Please order by 15/12/2023 for the best chance of delivery before Christmas except SA,WA and TAS.


Item Exchange:

We understand you may need to return or exchange your item for a number of reasons. It may not fit; you were told your bike was a different year model or perhaps you purchased the wrong item by mistake. All is good. We would be happy to help you with your return.

WHAT can be returned?
Most items are returnable, some restrictions apply. Electrical items and special orders are non-refundable.

WHEN do items need to be returned by?
Firestorm Motorcycles offers a 90 day return providing the items are undamaged and are in original packaging.

WHERE do items need to be returned to?
All items are to be returned to our retail store:

Firestorm Motorcycles
13/21 Enterprise Avenue,
Tweed Heads South
NSW 2486

HOW do customers return items?
Contact one of our sales team prior to sending any returns or if you have an account, you can request a return via the website.

SHIPPING for returns?
Unfortunately Australia Post and Couriers do not work for free, so the buyer pays for all shipping cost on incorrectly purchased items. If the item is under warranty or an incorrect item has been sent don't worry, Firestorm Motorcycles will pay for return shipping costs.

CREDIT for returns?
Exchange or refund (less original postage costs - $9.90).

Packing materials?
Items will need to be in original packaging in order to process returns so they can be sold to another happy customer. Thankyou. 

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if goods fail to be of acceptable quality and the failure does not amount to a major failure.

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Estimated Delivery Time Frame: 5-10 business days

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