Akrapovic Evolution Exhaust System for the Husqvarna SMR 450 (2006 - 2008)
Riders who want to get more out of their SMR should look no farther than the Akrapovic Racing or Evolution exhaust system. The systems offer increased performance, lower weight and an interesting styling enhancement. The systems include a noise damper for the European and other non-American markets, and an approved spark arrester for the US market, which is marked on the muffler with a laser engraving.
- Power
- +4.2HPat 4400 rpm
- Weight
- -1.36kg
PERFORMANCE
Measurements of the Akrapovic RACING system on the HUSQVARNA SMR 450(with muffler insert):
Power & Torque: the system provides an increase throughout the entire rpm range. The boost is especially noticeable around 4000 rpm, where the dropouts in the stock power and torque curves are filled. Max. increased power of 4.2 HP is measured at 4400 rpm.
Performance | |||
|---|---|---|---|
stock |
AKRAPOVIC |
max. increased power | |
| max. rear wheel power HP / rpm (measured on Dynojet ATV) |
45.8 / 8700 | 46.5 / 8600 | 4.2 / 4400 |
CONFIGURATION
The system is configured 2-1 using a combination of stainless steel and titanium. The dual conical titanium header tubes are joined into one and led into a titanium link pipe. The link pipe then leads into the titanium muffler. The connections are sleeve joints held together with silicon-shielded tensioning springs. The muffler outer sleeve is titanium, as are the inner perforation and the inlet and outlet cap. The muffler is attached to the frame using two carbon-fiber clamps. The system includes a noise damper for the European and other non-American markets, and an approved spark arrester for the US market, which is marked on the muffler with a laser engraving.
CONFIGURATION | ||||
|---|---|---|---|---|
header tubes |
collector |
link pipe | ||
material |
TITANIUM | - | TITANIUM | |
tube shape |
CYLINDRICAL | - | 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 SHIELDED SPRINGS | |
link pipe - muffler connection |
SLEEVE JOINT + SILICON SHIELDED SPRING |
muffler
|
TITANIUM / TITANIUM | |
muffler metal interior |
TITANIIUM |
muffler outer sleeve |
TITANIIUM | |
muffler clamp |
CARBON-FIBER |
muffler bracket |
- | |
muffler insert |
EU | NOISE DAMPER |
heat shield |
- |
| US | SPARK ARRESTER |
catalytic converter |
- | |
ADDITIONAL DATA | |||
|---|---|---|---|
weight comparison (kg) |
stock |
AKRAPOVIC |
difference |
| 3.96 | 2.60 | 1.36 | |
noise measurements (dB / rpm) |
stock |
AKRAPOVIC |
|
| 94 / 4500 | 94 / 4500 | ||
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 Evolution Exhaust System for the Husqvarna SMR 450 (2006 - 2008)
