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Arrow Racing Mid-Pipe (without CAT) Stainless Steel KTM RC 390 (2017-2020) 71668MI

2 074 000 som

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A dedicated track upgrade for the KTM RC 390, the Arrow Racing mid-pipe 71668MI lets you extract genuine performance gains from your existing exhaust setup without replacing the original header. Built from high-grade stainless steel and engineered specifically for the 2017-2020 RC 390, this link pipe slots in cleanly for a day at the circuit that rewards every corner exit.

Key Features

  • Retains the original KTM header — no need to replace the full front section of the exhaust system
  • Compatible with the standard slip-on silencer or Arrow slip-on series (e.g. 71860), giving you flexible upgrade paths
  • High-grade stainless steel construction delivers long-term heat resistance and corrosion durability under sustained track use
  • Optimised flow geometry sharpens throttle response and improves overall power delivery
  • Lightweight at just 0.5 kg, contributing to a reduction in unsprung and rotating mass
  • Race-use only — homologated exclusively for closed-circuit competition

Performance on Track

By removing the catalytic converter from the exhaust path, the 71668MI reduces back-pressure and allows the RC 390 engine to breathe more freely. The result is a more immediate throttle response and a noticeable improvement in mid-range and top-end power delivery — characteristics that translate directly into faster lap times. Arrow recommends an ECU remap after fitment to extract the full performance benefit and ensure long-term reliability under race conditions.

Build Quality

Arrow manufactures the 71668MI from premium stainless steel chosen specifically for its ability to withstand the sustained high temperatures generated during track sessions. The material resists oxidation and thermal fatigue, so the pipe maintains its structural integrity and appearance across a full racing season. Precision mandrel-bent tubing ensures consistent bore throughout the length of the pipe, preserving the optimised flow characteristics Arrow's engineers designed in.

Fitment & Compatibility

The Arrow 71668MI mid-pipe is developed exclusively for the KTM RC 390 covering model years 2017 to 2020. It connects directly to the original KTM header and accepts either the standard OEM slip-on silencer or the Arrow slip-on range, including part number 71860. No modification to the header or collector is required for fitment.

Race-use only — this mid-pipe is not road-legal and is intended solely for closed-circuit competition use.

Specifications

  • Brand: Arrow
  • Part number: 71668MI
  • Material: Stainless steel
  • Weight: 0.5 kg
  • Catalytic converter: None (CAT removed)
  • Fitment: KTM RC 390 (2017-2020)
  • Compatible silencers: OEM slip-on or Arrow slip-on (e.g. 71860)
  • Use: Race-use only — not road-legal
  • ECU remap: Recommended for full performance benefit
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