KTM SuperDuke 1390R 2023-2026 GP-S1 Slip-on exhaust

**GP‑S1 Exhaust for KTM SuperDuke 1390R (2023–2026)**

Built specifically for the SuperDuke 1390R, the GP‑S1 brings pure MotoGP aggression to KTM's ultimate naked beast. Its race‑inspired design and sharp, unmistakable tone amplify the already fierce character of the 2023–2026 SuperDuke 1390R, unlocking the soundtrack this machine truly deserves.

Hand‑made in the UK, the GP‑S1 is available in **Full Titanium** or **Stainless Steel** construction, with **Brushed** or **Ceramic Black** finishes. Lightweight, high‑strength materials deliver improved performance and a dramatic reduction in weight, all while elevating the bike's overall aesthetic.

Full Titanium or stainless steel construction.
Full Pie cut design.
Advanced flow dynamics.
Massive weight savings.
Simply bolt on and ride!
Gives a 3-5 bhp power gain.
Removable baffle supplied with exhaust.
Full fitting instruction supplied.
Retains pillions pegs if required.
No remap required.

DB levels tested @ 5250RPM

GP-S1 = 104 DB's

Stock = 4.3 KG

Titanium: 0.180 kg
Titanium with Mesh: 0.195 kg

1 x GP-S1 exhaust.
1 x Bolt kit (All fixings required)
1 x Full fitting instructions.
1 x Pro-Race official lifetime warranty

Due to the extremely high demand for our products we currently have lead times, We show the realistic lead times for each product on there listing page below the title.

Please note: Your order may be, and in many cases are shipped faster than the lead time stated on the listing but we want you to be aware that every product is hand-made to order solely in our UK factory by us.

Ceramic coating: Please note that adding ceramic coating to your product will add 1 additional week to the dispatch date due to the coating process.

If you have any Questions regarding our lead times please contact us..