Slip-On Line (SP Series) Titanium Mufflers for Yamaha YZF R1 (04-06)
The Akrapovic SLIP-ON SP SERIES is the first stage of exhaust system tuning. It differs from the standard SLIP-ON system in its selection of materials. The tubes, front rosette, end cap and interior of the muffler are made out of stainless steel, while the outer sleeve is titanium. For 2004 Yamaha R1 we offer a basic version of the Akrapovic SLIP-ON exhaust system with two mufflers and two link pipes. We have also developed an extended version with an optional Y- connecting tube. The basic Akrapovic SLIP-ON system allows the use of the stock catalytic converter. The version with the optional Y- connecting tube extends past the point where the catalytic converter is located, so that the catalytic converter is removed. There is no major difference in performance between the two systems. The system is intended for riders who do not wish to make major exhaust system modifications, and who like the lower price in comparison to the standard SLIP-ON system and the fact that it is legal for street use.
- Power
- +4.0HPat 8400 rpm
- Weight
- -0.60kg
PERFORMANCE
Measurements of the Akrapovic SLIP-ON SP SERIES system on the YAMAHA YZF R1 (without noise damper):
Power: performance measurements were made on both systems. The difference is minimal, with the advantage going to the option with the optional Y-connecting tube, which is slightly better in the middle of the rpm range. There is also a slight difference at the top end, but this does not affect the riding characteristics. Despite being only a first-stage tuning component, the system adds quite a bit of power to the stock engine figures. The standard option without the Y-connecting tube puts out 159.6 HP at 12800 rpm. The option with the optional Y-connecting tube was measured at 159.4 HP at 12700 rpm.
Torque: the torque curves of the two options are also very similar. There is a significant increase over the stock torque curve, especially above 6000 rpm.
Performance | |||
|---|---|---|---|
stock |
AKRAPOVIC |
max. increased power | |
| max. rear wheel power HP / rpm (measured on Dynojet ATV) |
157.9 / 12770 | 159.6 / 12800 | 4 / 8400 |
CONFIGURATION
The basic configuration of the Akrapovic SLIP-ON system for the Yamaha R1 is as follows: the system includes two mufflers, either titanium or carbon-fiber, attached under the seat with carbon-fiber clamps. The cylindrical link pipes are made of titanium and are welded to the mufflers. The connections of the link pipes to the stock header assembly are free-floating joints secured with metal clamps. The system uses the stock catalytic converter.
The Y-connecting tube can be ordered as an option, which expands the basic configuration as follows: The basic system continues with the optional Y- connecting tube, which is conical and made of stainless steel. The Akrapovic Y-connecting tube replaces the stock Y- connecting tube where the catalytic converter is located. The catalytic converter cannot be mounted in the Akrapovic Y- connecting tube. The link pipes and the Y-connecting tube are attached with free-floating joints secured with metal tensioning springs, as is the joint between the Y-connecting tube and the collector. The Akrapovic SLIP-ON SP SERIES has a built-in noise damper through which it conforms to regulations on exhaust system noise levels for street use.
heat shield
CONFIGURATION | |||
|---|---|---|---|
header tubes |
collector |
link pipe | |
material |
- | - | STAINLESS STEEL |
tube shape |
- | - | CYLINDRICAL |
interference crossover tubes |
- |
lambda sensor |
YES |
header tube inner sleeves |
- |
header tube flanges |
- |
header tube - collector connection |
- |
collector - Y-connecting tube - link pipe connection |
FREE FLOATING + METAL CLAMPS |
link pipe - muffler connection |
WELDED |
muffler
|
S.S. / S.S. |
muffler metal interior |
STAINLESS STEEL |
muffler outer sleeve |
TITANIUM |
muffler clamp |
CARBON-FIBER ROAD |
muffler bracket |
- |
noise damper |
HOMOLOGATED |
heat shield |
- |
ADDITIONAL DATA | |||
|---|---|---|---|
weight comparison (kg) |
stock |
AKRAPOVIC |
difference |
| 4.12 | 3.52 | 0.60 | |
noise measurements (dB / rpm) |
stock |
AKRAPOVIC |
|
| 97 / 6250 | 97 / 6250 | ||
possibility of periodic service without removing A.E.S. |
oil |
oil filter |
|
| YES | YES | ||
legal for street use |
ΥΕΣ | ||
Regulations
Akrapovič's product line includes products regulated by national and international emission regulations. Akrapovič makes every effort to label regulated products and identify if they are for competition-use only or for general street/highway use in the regulated area. However, Akrapovič does not make any statement of compliance for products that do not have an explicit compliance label. Buyer is ultimately responsible for deciding if a part is legal for buyer's intended use.
EC : Product is compliant with the applicable requirements of the European Union Directive EC 97/24 or the European Commission Delegated Regulation (EU) No. 134/2014 supplementing Regulation No. 168/2013 (EU) of the European Parliament and of the Council as indicated in the attached EC type approval document in the package and available on the product website.
EPA : Means that such product meets the EPA noise standard as set forth by the United States Code of Federal Regulations, Title 40, Chapter I, Part 205, Subpart E (80 dBA).
CARB RP : Means that such product is "CARB compliant", i.e. compliant with the requirements of the Air Resources Board of the California Environmental Protection Agency. Products marked as CARB compliant are considered replacement parts under CARB regulations.
** 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 Slip-On Line (SP Series) Titanium Mufflers for Yamaha YZF R1 (04-06)
