KTM Duke 390 2021-2023 GP-S1 slip-on exhaust

KTM Duke 390 2021-2023 GP-S1 slip-on exhaust system. Hand-crafted UK-made performance exhaust engineered specifically for the 2021-2023 Duke 390. The GP-S1 features MotoGP-inspired race design delivering an aggressive, unmistakable exhaust note that amplifies the character of your Duke.

Available in Full Titanium or Stainless Steel construction with Brushed or Ceramic Black finishes. Lightweight materials reduce overall weight while improving performance and bike aesthetics. Premium engineering meets street-ready aggression.

Perfect for riders seeking authentic performance and distinctive sound from their Duke 390.

Full Titanium or stainless steel construction.
Massive weight savings.
Improved performance 1+ bhp. (but additional gains can be made with tune.)
Full fitting instruction supplied.
Retains pillions pegs if required
Simply bolt on and ride!
No remap required

DB levels tested @ 5500 RPM

Stock = 97-98 DB's
GP-S1 = 105 + DB's

Titanium GP-S1 = 0.240 KG
Titanium GP-S1 with mesh = 0.255 KG

1 x GP-S1 slip on exhaust
1 x Bolt kit (All fixings required)
1 x Full fitting instructions (emailed upon purchase)
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..