Elevate your KTM’s performance and tone with this direct-fit slip-on muffler, engineered for KTM RC 390 and Duke 125/200/390 models from approximately 2017 to 2023. Built to match factory dimensions and interface with the mid-pipe system, this aftermarket muffler enhances airflow, reduces weight, and delivers aggressive exhaust note without requiring header or ECU modifications Dennis Kirk+11eBay+11Amazon+11.
🔧 Compatibility & Fitment
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Compatible with KTM RC 390 and Duke 125 / 200 / 390 models where the mid-pipe and mounting points are shared AmazoneBay
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Note: Some reviewers highlight that engine/frame differences between Duke 125/200 and Duke 390 lines may prevent fitment, particularly regarding mid-pipe routing and frame clearances for Duke 200 vs Duke 390 KTM Duke 390 Forum
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Confirm vehicle version before purchase to ensure proper fit
⚙️ Key Features & Benefits
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Fitment: Bolt-on slip-on muffler for KTM RC 390 (2017–2023) and compatible Duke models
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Material: Stainless steel or aluminum construction with optional carbon end cap available depending on variant
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Sound & Performance: Rich mid-range tone, improved throttle feel, and minor power gains thanks to freer airflow
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Weight: Lighter than stock units—easy to install without header change or ECU mapping
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Design: Compact canister or modified link-pipe setup depending on style (e.g. 51 mm mid link versions) KTM Duke 390 Forum+7eBay+7Amazon+7Alibaba
🧰 Customer Notes & Upgrade Trends
RC 390 and Duke exhaust systems are often interchanged among riders thanks to shared engine platforms—the 390 exhaust generally fits RC units seamlessly Reddit+1KTM Duke 390 Forum+1.
According to forum discussions, some entry-level Duke 200 units may have mid-pipe differences, so ensure your model supports 390-style slip-on swaps KTM Duke 390 Forum.
Popular performance upgrade brands for these motorcycles include FMF Factory 4.1 RCT, Coffman, Dominator, and Akrapovič, offering alternative tonal profiles and materials Reddit+8Reddit+8Dennis Kirk+8.
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