Yamaha XT 660R (2004) Slip-On SP Series Exhaust System

Yamaha XT 660R (2004) Slip-On SP Series Exhaust System

Yamaha XT 660R (2004)
Slip-On SP Series Exhaust System
for the Yamaha XT 660R (2004)
We have developed an Akrapovic SLIP-ON SP series partial exhaust system
for the popular Yamaha all-rounder. The Akrapovic SLIP-ON SP series system
is intended for everyday riders looking for a great combination of price, quality
and performance. The Akrapovic SLIP-ON system with the use of 94dB noise
damper insert conforms to FIM Enduro regulations on exhaust system noise
levels.
PERFORMANCE
max. rear wheel power
HP / rpm
Power: the utility and purpose of the Akrapovic SLIP-ON SP series is shown in the
power curve, which is identical in shape to the stock curve. The system delivers an
increase in power throughout the entire rpm range, following the same pattern as the
stock set-up. The increase is nearly the same throughout the range, with a slightly
higher increase near the top and in the overrev range. At 6000 rpm the system delivers over 44 HP.
Torque: the torque is also increased throughout the range, and also follows the stock
curve. The maximum difference appears in the middle of the range, which is right
where you need it for everyday riding.
AKRAPOVIC
max. increased power
42.8 / 5950
44.1 / 6000
2.1 / 6500
(measured on SuperFlow Cyle Dyn)
CONFIGURATION
PERFORMANCE
Measurements of the Akrapovic SLIP-ON SP SERIES system on the YAMAHA XT
660R (without noise damper):
stock
CONFIGURATION
header tubes
collector
link pipe
material
-
-
STAINLESS STEEL
tube shape
-
-
CONICAL
interference crossover
tubes
-
lambda sensor
-
header tube inner sleeves
-
header tube flanges
-
header tubes - collector
connection
-
collector / header tube link pipe connection
FREE-FLOATING + METAL
CLAMP + SILICON
SHIELDED SPRING
link pipe - muffler
connection
FREE-FLOATING + SILICON
SHIELDED SPRING
muffler
inlet cap /outlet cap
STAINLESS STEEL /
STAINLESS STEEL
muffler metal interior
STAINLESS STEEL
muffler outer sleeve
TITANIUM
muffler clamp
CARBON-FIBER
OFFROAD
muffler bracket
-
noise damper
FIM ENDURO 94 dB
heat shield
-
CONFIGURATION
Off-Road
Road
Program
The configuration of the system for the Yamaha XT is 2-2, which means that the
twin header tubes are led into two mufflers. The muffler outer sleeves are made of
titanium, while the interior and the inlet and outlet caps are of stainless steel. The link
pipes are also stainless steel, and conical for improved exhaust-gas flow characteristics. The link pipes and mufflers are attached using free-floating joints held together
with silicon-shielded tensioning springs. The mufflers are led to saddle height on both
sides of the bike and are attached to the frame using Akrapovic carbon-fiber clamps.
The link pipes are also attached to the header assembly using free-floating joints, this
time held together with metal clamps. The Akrapovic SLIP-ON SP series contains a
FIM Enduro 94dB noise damper, and thereby conforms to FIM regulations for exhaust
system noise levels for Enduro competition.
OPTIONS
link pipe
noise damper
muffler outer sleeve
muffler bracket
heat shield
-
-
-
-
-
ADDITIONAL DATA
AKRAPOVIC
stock
weight comparison
(kg)
11.05
S.S. link pipe
TITANIUM
link pipe
stock - S.S.
stock - titanium
4.91
-
6.50
-
(noise
measurements
(dB / rpm)
stock
AKRAPOVIC
84 / 3000
94 / 3000 (94 dB FIM Enduro noise damper)
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: 103607 (SS-Y6SO5-DT)
difference
www.akrapovic-exhaust.com
Akrapovic Exhaust System Technology copyright 2004, all rights reserved
Description
Akrapovic Slip-On SP Series Exhaust System
for the Yamaha XT 660R (2004)
CARBON-FIBER
MUFFLER CLAMPS
Off-Road
Road
Program
NOISE DAMPERS
Product code: 103607 (SS-Y6SO5-DT)
3
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Akrapovic Exhaust System Technology copyright 2004, all rights reserved
Exhaust Photo
Akrapovic Slip-On SP Series Exhaust System
Bike Photo
Akrapovic Slip-On SP Series Exhaust System
Akrapovic Exhaust System Technology copyright 2004, all rights reserved
for the Yamaha XT 660R (2004)
Off-Road
Road
Program
Product code: 103607 (SS-Y6SO5-DT)
4
www.akrapovic-exhaust.com
Bike Photo
Akrapovic Slip-On SP Series Exhaust System
Akrapovic Exhaust System Technology copyright 2004, all rights reserved
for the Yamaha XT 660R (2004)
Off-Road
Road
Program
Product code: 103607 (SS-Y6SO5-DT)
5
www.akrapovic-exhaust.com
for the Yamaha XT 660R (2004)
103609 (MS-H12T) MUFFLER LEFT: SS INLET CAP / TITANIUM OUTER SLEEVE / SS OUTLET CAP
103180 (P-HF99) MUFFLER FITTING PARTS
103179 (P-MCTD14) CARBON-FIBER CLAMP
102234 (P-S2) SPRING
102638 (PS-ST2A) STICKER SP SERIES
103175 (LS-Y6SO5L) LINK PIPE LEFT
Off-Road
Road
103177 (P-HF100) LINK PIPE FITTING PARTS
103611 (MS-H12TL) MUFFLER RIGHT: SS INLET CAP / TITANIUM OUTER SLEEVE / SS OUTLET CAP
Program
103176 (LS-Y6SO5R) LINK PIPE RIGHT
Product code: 103607 (SS-Y6SO5-DT)
6
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Akrapovic Exhaust System Technology copyright 2004, all rights reserved
Schematic
Akrapovic Slip-On SP Series Exhaust System
Diagram / Chart
Akrapovic Slip-On SP Series Exhaust System
AKRAPOVIC SPS SLIP-ON EXHAUST
Akrapovic Exhaust System Technology copyright 2004, all rights reserved
for the Yamaha XT 660R (2004)
STOCK EXHAUST
(without noise damper)
45
57,5
40
55,0
52,5
50,0
30
47,5
25
Off-Road
Road
45,0
20
42,5
Program
15
40,0
2500
3000
3500
Product code: 103607 (SS-Y6SO5-DT)
4000
4500
5000
EngSpd RPM (Sorted)
5500
7
6000
6500
www.akrapovic-exhaust.com
7000
EngTrq
WhlPwr
35