Honda CRF 450 R (2005) Evolution Exhaust

Honda CRF 450 R (2005)
Evolution Exhaust System
for the Honda CRF 450R (2005)
We have developed an Akrapovic EVOLUTION system which is similar in design to last year’s model and gives the Honda CRF a major performance boost.
The Akrapovic EVOLUTION system is designed to conform to the 98 dB noise
limit required by the FIM for MX competition. The system is intended for professional MX riders, but due to its spectrum of effects on engine performance it
is also suitable for amateur riders. 2005 stock power delivery is slightly lower
than the 2004 model, which is therefore reflected in the 2005 Akrapovic power
delivery figures.
PERFORMANCE
Measurements of the Akrapovic EVOLUTION system on the
HONDA CRF 450 R:
Power: The linear power curve shows the quality of the design of the EVOLUTION system. The curve has no drop-outs. At 7200 rpm it joins the stock curve, and from there on
the increase appears again, continuing all the way into the overrev range. At 8360 rpm
the engine puts out 49.6 HP, with max. increased power of 2.1 HP in the overrev range
at 9800 rpm.
Torque: torque is also increased throughout the entire range. The torque band is wider,
giving a larger amount of torque which experienced riders will know how to make the
most of.
PERFORMANCE
max. rear wheel power
HP / rpm
stock
AKRAPOVIC
max. increased power
48.7 / 8550
49.6 / 8360
2.1 / 9800
(measured on SuperFlow Cyle Dyn)
CONFIGURATION
CONFIGURATION
header tubes
collector
link pipe
material
TITANIUM
-
TITANIUM
tube shape
CONICAL
-
CONICAL
interference crossover
tubes
-
lambda sensor
-
header tube inner sleeves
S.S. CNC MACHNED
header tube flanges
S.S. LASER CUT
header tubes - collector
connection
-
collector / header tube link pipe connection
FREE FLOATING + SILICON
SHILDED SPRING
link pipe - muffler
connection
WELDED
muffler
inlet cap /outlet cap
TITANIUM / TITANIUM
muffler metal interior
TITANIUM
muffler outer sleeve
TITANIUM
muffler clamp
1x CARBON-FIBER
OFF ROAD
muffler bracket
-
noise damper
-
heat shield
CARBON-FIBER
OPTIONS
CONFIGURATION
Off-Road
The EVOLUTION system is made of top-quality materials. The conical header tube and
link pipe are both made of titanium. The Akrapovic Offroad muffler is also made entirely
of titanium. The link pipe ‡ header tube connection is a free-floating joint secured with a
silicon-shielded tensioning spring. At the other end, the link pipe is welded to the muffler.
The muffler is attached to the frame with an Akrapovic Offroad carbon-fiber clamp.
link pipe
noise damper
muffler bracket
heat shield
-
-
-
-
ADDITIONAL DATA
AKRAPOVIC
stock
weight comparison
(kg)
3.22
RACING
EVOLUTION
-
2.15
stock - RACING
stock EVOLUTION
-
1.03
Program
noise
measurements
(dB / rpm)
stock
AKRAPOVIC
98 / 4500
98 / 4500
possibility of periodic
service without removing
A.E.S.
oil
oil filter
YES
Technical specifications of Akrapovic exhaust systems
and related products subject to change without notice.
2
YES
NO
legal for street use
Product code: 103510 (S-H4MET5-MTT)
difference
www.akrapovic-exhaust.com
Akrapovic Exhaust System Technology copyright 2004, all rights reserved
Description
Akrapovic Evolution Exhaust System
Exhaust Photo
Akrapovic Evolution Exhaust System
Akrapovic Exhaust System Technology copyright 2004, all rights reserved
for the Honda CRF 450R (2005)
Off-Road
ANTI-SEIZING GREASE
CARBON-FIBER
MUFFLER CLAMP
Program
Product code: 103510 (S-H4MET5-MTT)
3
www.akrapovic-exhaust.com
Bike Photo
Akrapovic Evolution Exhaust System
Akrapovic Exhaust System Technology copyright 2004, all rights reserved
for the Honda CRF 450R (2005)
Off-Road
Program
Product code: 103510 (S-H4MET5-MTT)
4
www.akrapovic-exhaust.com
Bike Photo
Akrapovic Evolution Exhaust System
Akrapovic Exhaust System Technology copyright 2004, all rights reserved
for the Honda CRF 450R (2005)
Off-Road
Program
Product code: 103510 (S-H4MET5-MTT)
5
www.akrapovic-exhaust.com
for the Honda CRF 450R (2005)
101873 (P-F6) FLANGE
101925 (P-33) INNER SLEEVE
103512 (M-TTH4M5) FULL TITANIUM MUFFLER
103511 (H-H4MET5) HEADER TUBE
103513 (P-HF114) HANGING FITTING ASSEMBLY
Off-Road
102122 (P-HF55) CAGE NUT
103508 (P-MCTM16) CARBON-FIBER CLAMP
Program
102790 (P-HSH4M1/A1) CARBON-FIBER HEAT SHIELD
Product code: 103510 (S-H4MET5-MTT)
6
www.akrapovic-exhaust.com
Akrapovic Exhaust System Technology copyright 2004, all rights reserved
Schematic
Akrapovic Evolution Exhaust System
Diagram / Chart
Akrapovic Evolution Exhaust System
STOCK EXHAUST (FIM 98dB)
AKRAPOVIC EVO EXHAUST (FIM 98dB)
45,0
50
42,5
45
40,0
40
37,5
35,0
30
32,5
25
Off-Road
30,0
20
27,5
Program
15
4000
5000
Product code: 103510 (S-H4MET5-MTT)
6000
8000
7000
EngSpd RPM (Sorted)
7
9000
10000
www.akrapovic-exhaust.com
11000
EngTrq
35
WhlPwr
Akrapovic Exhaust System Technology copyright 2004, all rights reserved
for the Honda CRF 450R (2005)