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BMW R 1200 GS ADVENTURE(2004 - 2009)

RACING EXHAUST SYSTEM

Akrapovič d.d. 2009 all rights reserved

BMW R 1200 GS ADVENTURE (2004 - 2008) RACING EXHAUST SYSTEM

Product code: 104060 (S-B12R1-T)

DESCRIPTION

23.02.2009

Technical specifications of Akrapovic exhaust systems and related products subject to change without notice.

We have developed an easily recognizable Akrapovic 2-1-2 RACING system in order to satisfy riders who want to get the maximum power and torque out of their maxi enduro machines. The GS 1200 gets a major performance boost which will be very welcome for riders who like to ride in difficult terrain. In addition to the performance, the Akrapovic system is less than half the weight of the stock system. The new exhaust system will also be recognizable due to its sound, as the flat twin gets to breathe much more deeply.

PERFORMANCE

Measurements of the Akrapovic RACING system on the BMW R 1200 GS (without noise damper):

Power: due to the enduro design of the motorcycle, the RACING system for the 1200 GS is designed to deliver a power increase throughout the rpm range. The fluctuations in the stock curve at around 4500 rpm are leveled, and max increased power of 8 HP is delivered at 4800 rpm. There is also a major increase around 6500 rpm. Torque: torque delivery with the Akrapovic RACING system is improved, with the drop-outs in the stock curve filled. With regard to the character of the motorcycle, this system will supply more than enough power and torque for enduro and cross-country riding.

CONFIGURATION

The Akrapovic RACING system for the BMW is configured 2-1-2, and is made out of stainless steel. The conical header tubes are joined to a cylindrical Y collector, from where the configu-ration leads into a cylindrical Y link pipe and then into two mufflers. All of these components are attached with sleeve joints held together with silicon-shielded tensioning springs. The link pipe-collector joint is further secured with a metal clamp. The mufflers are round, and the outer sleeves are available only in titanium. The interior, inlet and outlet caps are made of titanium. A carbon-fiber heat-shield is mounted on the link pipe. We also used carbon-fiber for the clamp which attaches the muffler to the frame. The system has points for attaching lambda sensors on both header tubes. The header tubes have interference crossover tube in order to take maximum advantage of the exhaust gas flow.

PERFORMANCE

stock AKRAPOVIC max. increased power

max. rear wheel power HP / rpm

(measured on SuperFlow Cyle Dyn) 90.8 / 7500 92.6 / 6780 8 / 4800

CONFIGURA-TION

CONFIGURATION

header tubes collector link pipe

material STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL

tube shape CONICAL CYLINDRICAL CYLINDRICAL

interference crossover tubes

YES lambda sensor YES

header tube inner sleeves S.S. CNC MACHINED header tube flanges S.S. LASER CUT

header tubes - collector connection

SLEEVE JOINT + SILICONSHIELDED SPRINGS

collector / link pipe connection

SLEEVE JOINT + SILICONSHIELDED SPRINGS+

METAL CLAMP

link pipe - muffler connection

SLEEVE JOINT + SILICONSHIELDED SPRINGS

muffler inlet cap /outlet cap

TITANIUM / TITANIUM

muffler metal interior TITANIUM muffler outer sleeve TITANIUM

muffler clamp CARBON-FIBER muffler bracket -

noise damper - heat shield CARBON-FIBER

ADDITIONAL DATA

weight comparison (kg)

stockAKRAPOVIC difference

11RACING EVOLUTION stock - RACING

stock - EVOLUTION

6.23 - 4.77 -

noisemeasurements

(dB / rpm)

stock AKRAPOVIC

87 / 3500 102 / 3500

possibility of periodicservice without removing

A.E.S.

oil oil filter

YES YES

legal for street use NO

OPTIONSlink pipe noise damper muffler outer sleeve muffler bracket heat shield

- - - - -




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EXHAUST PHOTO




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BIKE PHOTO




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BMW R1200GS / R1200GS ADVENTURE, Complete exhaust system / Racing line / Model year: 2004 - 2009


FLANGE 103081 (P-F20)

INNER SLEEVE 104219 (P-51)

COPPER GREASE 103487 (P-KP2)

CARBON-FIBER CLAMP 104099 (P-MCTR5)

HANGING FITTING ASSEMBLY 104104 (P-HF127)

CLAMP 103451 (P-R20)

SPRING 103083 (P-S2)

NUT 104103 (P-HF126)

CARBON-FIBER HEAT SHIELD 104105 (P-HSB12R1/A1)

HEADER TUBE SET 103083 (H-B12R1)

COLLECTOR 103475 (C-B12R1)

LINK PIPE 103084 (L-B12R1)

FULL TITANIUM MUFFLER (UP) 104100 (M-B12R1U-T)

FULL TITANIUM MUFFLER (DOWN) 104101 (M-B12R1D-T)

P-HST2AL STICKER

SHEMATIC




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AKRAPOVIC RACING EXHAUST STOCK EXHAUST

DIAGRAM / CHART

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