Performance Exhausts for Triumph Speed 400 & Scrambler 400 X

The Triumph Speed 400 and Scrambler 400 X have earned genuine enthusiasm from Indian riders for their quality, character, and British engineering pedigree. The 398cc single is refined and well-damped from the factory — which means the stock exhaust is deliberately restrained. A performance slip-on gives both bikes a voice that better matches their heritage and intent.

At Rawtorque, we stock genuine exhaust options from Red Rooster Performance for the Triumph 400 range, with fitment guidance for both the Speed 400 and Scrambler 400 X.

Slip-on vs Full System for Triumph 400

• Slip-on — Replaces the muffler only. The most common choice for Triumph 400 riders — an immediate improvement in sound and tail weight without the complexity of a full header replacement.
• Full System — Replaces the entire exhaust from the header. Bigger gains in flow and weight. Pairs best with a BMC air filter and a FuelX Pro+ fuel controller as a Stage 1 setup for the biggest measurable performance improvement.

By Model

Triumph Speed 400

The Speed 400's 398cc single has a refined stock exhaust that is quiet by design. A Red Rooster slip-on gives the Speed 400 a deeper, more British-character note — fuller and more engaging without sounding harsh. It suits the Speed 400's road-focussed character well. For more performance, pair it with a BMC air filter and FuelX Pro+ for a complete Stage 1.

Shop Speed 400 Exhausts | Speed 400 Stage 1 Kit

Triumph Scrambler 400 X

The Scrambler 400 X calls for a more character-forward exhaust note — one that matches its dual-sport intent and scrambler aesthetics. A Red Rooster slip-on on the Scrambler 400 X delivers exactly that: a fuller, more trail-ready sound with a lighter tail for better handling on dirt. The first and most impactful upgrade for most Scrambler 400 X owners.

Shop Scrambler 400 X Exhausts | Scrambler 400 X Stage 1 Kit

Completing a Stage 1 for Your Triumph 400

An exhaust alone delivers a sound and weight improvement. For measurable power gains, it works best as part of a Stage 1 setup: BMC air filter + FuelX Pro+ fuel controller + performance exhaust. The FuelX compensates fuelling automatically for the freer exhaust flow, and all three parts work together for a stronger, smoother Triumph 400. Read the Triumph air + fuel guide or browse all Triumph accessories at Rawtorque.

Frequently Asked Questions

Will a slip-on alone improve performance on my Speed 400 or Scrambler 400 X?

A slip-on primarily improves sound and tail weight. Measured power gains from a slip-on alone are modest. The real performance improvement comes when the exhaust is paired with an air filter and fuel controller as a Stage 1 setup.

Do I need a fuel tuner with a Triumph 400 exhaust?

For a slip-on alone, the stock ECU on most Triumph 400 variants copes without tuning. For a full system, a FuelX Pro+ is recommended to ensure the engine benefits fully from the freer exhaust flow.

Is the exhaust fitment the same for Speed 400 Standard and R?

The Speed 400 Standard and R use the same engine and exhaust mounting. Check the product listing for confirmed fitment on your specific variant and model year.