Akrapovic Evolution Exhaust System for the Honda CRF250R (2006 - 2007)
Akrapovic EVOLUTION system is designed for riders who know who to take full advantage of the specific performance benefits offered by this system. This generally refers to professionally oriented riders. We should especially mention the new Akrapovic HEXAGONAL mufflers, which with their carbon-fiber outlet caps match the design of the Honda exceptionally well.
- Power
- +2.1kWat 12000 rpm
- Weight
- -1.6kg
PERFORMANCE
Measurements of the Akrapovic EVOLUTION system on the HONDA CRF 250R:
Power & Torque: the performance advantages of the Akrapovic Evolution system on the Honda CRF 250R can be found mainly in the upper and top end of the rpm range. At the top end the power curve the range of the peak power is extended, as well as increased with respect to the stock power output.
Performance | |||
|---|---|---|---|
stock |
AKRAPOVIC |
max. increased power | |
| max. rear wheel power HP / rpm (measured on Dynojet ATV) |
34.5 / 10900 | 35.5 / 11500 | 2.1 / 12000 |
CONFIGURATION
The twin-pipe Akrapovic Evolution system uses titanium tubing. The tubes for the header assembly are flared to provide improved exhaust gas flow. The systems’ individual components - header tubes, collectors and link pipes - are attached using sleeve joints held together with silicon-shielded springs. The link pipes, which are welded to the mufflers, are extremely short. This system includes the HEXAGONAL mufflers, which go exceptionally well with the design of the Honda. The mufflers have titanium inlet caps and perforated inner sleeves. The outlet caps are made of carbon- fiber. The outer sleeves are made of titanium. The mufflers are attached to the frame using Akrapovic offroad carbon-fiber clamps. Evolution system also includes a carbon-fiber heat shield.
CONFIGURATION | |||
|---|---|---|---|
header tubes |
collector |
link pipe | |
material |
TITANIUM | - | TITANIUM |
tube shape |
FLARED | - | FLARED |
interference crossover tubes |
- |
lambda sensor |
- |
header tube inner sleeves |
S.S. CNC MACHINED |
header tube flanges |
S.S. LASER CUT |
header tube - collector connection |
- |
collector / header tube - link pipe connection |
SLEEVE JOINT + SILICON SHILDED SPRING |
link pipe - muffler connection |
SLEEVE JOINT + SILICON SHILDED SPRING |
muffler
|
TITANIUM / CARBON-FIBER |
muffler metal interior |
TITANIIUM |
muffler outer sleeve |
TITANIUM |
muffler clamp |
CARBON-FIBER ROAD |
muffler bracket |
- |
noise damper |
- |
heat shield |
CARBON FIBER |
ADDITIONAL DATA | |||
|---|---|---|---|
weight comparison (kg) |
stock |
AKRAPOVIC |
difference |
| 4.13 | 2.49 | 1.64 | |
noise measurements (dB / rpm) |
stock |
AKRAPOVIC |
|
| 96 / 5000 | 96 / 5000 | ||
possibility of periodic service without removing A.E.S. |
oil |
oil filter |
|
| YES | YES | ||
legal for street use |
NO | ||
** Technical specifications of Akrapovic exhaust systems and related products subject to change without notice.
Below you may see the diagram data dislaying the difference in Engine Torque and WH Power between stock and Akrapovic Slip-On Exhaust System for the Honda CRF250R (2006)
