KTM · PowerParts · Exhaust systems
The KTM Akrapovič "Racing Line" (A48005901044) is a KTM PowerParts exhaust system built for 4-stroke offroad riding and racing where sharper response and stronger performance matter. Designed to broaden the usable speed range, it targets more torque, increased performance, and more consistent power delivery with a sensitive response.
Construction combines a stainless steel header with a high-grade titanium silencer housing for a Factory Racing Team look, rich sound, and a claimed weight saving of 16,7 % (0.6 kg) over the stock exhaust. The manifold routing is optimally adapted to the production engine. This exhaust system is listed for the models shown in the vehicle compatibility table.
Performance
Engineered to deliver more torque and increased performance, this system is intended to make power easier to use across a wider speed range. The result is better power delivery and a sensitive response, supporting improved handling overall through finer dosing capacity on the throttle grip.
Construction
Materials are selected for purpose-built construction: a stainless steel header paired with a silencer housing made of high-grade titanium. Along with the Factory Racing Team look, this design supports the system’s weight saving claim of 16,7 % (0.6 kg) over the stock exhaust.
Comfort
The manifold routing is optimally adapted to the production engine, aligning the exhaust layout with the stock engine configuration. This design focus supports the goal of responsive behavior and a more usable speed range while maintaining the intended fit and routing of the exhaust system.
Performance
Akrapovič "Racing Line" is designed to sharpen the connection between throttle input and rear-wheel response. By aiming for sensitive response and finer dosing capacity on the throttle grip, it supports improved handling overall and helps make power more manageable as conditions change. It also brings a rich sound character consistent with a performance-focused offroad exhaust system.
Installation
This system has specific requirements depending on application. Gasgas: To install the silencer, the stock mounting parts must be overtaken. The correct engine mapping must also be installed. Vehicles in this configuration no longer comply with the 109 dB FIM noise limit.
| Part Number | A48005901044 |
|---|---|
| Product Line | KTM PowerParts |
| Category | Exhaust systems > 4-stroke Offroad |
| Materials | Stainless steel, Titanium |
| Weight | -0.6 kg |
| Approvals | AMA Amateur, CCCUO |
| Model — Model Years |
|---|
| 450 SMR — 2023–2027 |
| 450 SX-F — 2023–2027 |
| 450 SX-F Factory Edition — 2022–2026 |
| 450 XC-F — 2023–2027 |
Vehicle compatibility as captured from KTM for article number A48005901044.
Owner's Manual (PDF) Owner's Manual (PDF)
Provided by KTM. Opens in a new tab.
KTM approval notice: AMA Amateur racing sound compliant.
KTM approval notice: Closed Course Competition Use Only.
