Akrapovic Evolution Exhaust System (single muffler) for the Honda CRF 250R (2006 - 2007)
Like the Akrapovic dual muffler EVOLUTION version, the single muffler system is designed for riders who know who to take full advantage of the specific performance benefits offered by these systems. We should especially mention the new Akrapovic HEXAGONAL design muffler, which with its carbon-fiber outlet cap goes exceptionally well with the design of the Honda. The muffler has a noise damper for the EU and other non-American markets, and a mandatory spark arrester for the American market.
- Power
- +2kWat 11800 rpm
- Weight
- -2.2kg
PERFORMANCE
Measurements of the Akrapovic EVOLUTION system on the HONDA CRF 250R (without muffler insert):
Power & Torque: the single muffler version delivers a perfomance increase mainly in the middle of the rpm range and at the top end and overrev. Good riders will know how to make the most of the advantage.
Performance | |||
|---|---|---|---|
stock |
AKRAPOVIC |
max. increased power | |
| max. rear wheel power HP / rpm (measured on Dynojet ATV) |
34.5 / 10900 | 35.6 / 11500 | 2 / 11800 |
CONFIGURATION
The Akrapovic Evolution system uses titanium tubing. The tubes for the header assembly are flared to provide improved exhaust gas flow, while the link pipe is conical. The systems’ individual components - header tube and link pipe - are attached using a sleeve joint held together with a silicon-shielded spring. The link pipe is welded to the muffler.
This system, unlike the stock system, has just a single muffler. It features a HEXAGONAL design muffler, which goes exceptionally well with the design of the Honda. The muffler has a titanium inlet cap and perforated inner sleeve. The outlet cap is made of carbon-fiber. The outer sleeve is made of titanium. The muffler is attached to the frame using an Akrapovic offroad carbon-fiber clamp. Evolution system also includes a carbon-fiber heat shield.
The muffler has a noise damper for the EU and other non-American markets, and a mandatory spark arrester for the American market.
CONFIGURATION | ||||
|---|---|---|---|---|
header tubes |
collector |
link pipe | ||
material |
TITANIUM | - | TITANIUM | |
tube shape |
FLARED | - | CONICAL | |
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 |
WELDED |
muffler
|
TITANIUM / CARBON-FIBER | |
muffler metal interior |
TITANIIUM |
muffler outer sleeve |
TITANIUM | |
muffler clamp |
CARBON-FIBER OFF ROAD |
muffler bracket |
- | |
muffler insert |
EU | NOISE DAMPER |
heat shield |
CARBON FIBER |
| US | SPARK ARRESTER |
catalytic converter |
- | |
ADDITIONAL DATA | |||
|---|---|---|---|
weight comparison (kg) |
stock |
AKRAPOVIC |
difference |
| 4.13 | 1.95 | 2.2 | |
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)
