Yoshimura R&D of America, Inc.

SPEED/SCRAMBLER 400 2024-25 GP-MAGNUM Stainless Slip-On, w/ Stainless Muffler

SPEED/SCRAMBLER 400 2024-25 GP-MAGNUM Stainless Slip-On, w/ Stainless Muffler - Main image
$293.4 $489 In stock

Category: Street Series Exhaust System

A 398cc retro water cooled Triumph? Yes please! For some time now we have been waiting to get our hands on the Scrambler/Speed 400 and we are so thrilled to have an offering now.

Our GP Magnum slip-on looks just perfect on the Scrambler 400. A weight savings of as much as 3 Lbs. is one thing, but the performance is another with a 2.08% increase of HP at 8000 rpm and a 3.8% increase in torque @ 6,300 rpm just nails it.

Now the Triumph Scrambler/Speed 400 sounds proper! The GP Magnum comes out of the box with a sound insert, but can be easily removed for a more aggressive tone.

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Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

Sophia ★★★★★

I wasn’t sure how the sound would change, but after installing it on my Speed 400, the low rumble at idle is exactly what I was hoping for. The stainless build feels solid and the fitment was pretty straightforward—no modifications needed.

Thomas R. ★★★★★

The stainless muffler gives it a clean, durable look that matches the retro vibe perfectly. Installation was straightforward, and the fit on my Speed 400 was spot on with no modifications needed. I’m digging the upgraded presence it adds to the bike.

Owen ★★★★★

Installed this on my Speed 400 last weekend, and the stainless muffler gives it a deep, throaty growl that completely transforms the riding experience. The fit was spot-on, and the retro vibe of the GP-Magnum matches the bike perfectly.