HONDA CRF 250R (2008)
DESCRIPTION The Akrapovic Slip-On system is designed for recreational riders. It delivers an excellent combination of quality, performance, visual enhancement, easy installation and affordability. The Akrapovic Slip-On is designed for two markets; in the US it is available with an approved spark arrester, and for the EU and other non-us markets it comes with a noise damper. max. rear wheel power HP / rpm (measured on Dynojet ATV) PERFORMANCE stock AKRAPOVIC max. increased power 34.3 \ 11170 34.5 \ 10870 1.3 \ 6600 PERFORMANCE Measurements of the Akrapovic SLIP-ON system on the HONDA CRF 250R (with muffler inserts): Power & Torque: the engine reacts to the change of the exhaust system by increasing the value of power and torque, which is noticeable through entire rpm range. We measured max. power increase of 1.3 HP at 6600 rpm. CONFIGURATION The twin-pipe Akrapovic SLIP-ON system for the Honda CRF is composed of titanium mufflers and exceptionally short cylindrical stainless steel link pipes, which are welded to the mufflers. At the other end the link pipes are attached to the header assembly using sleeve joints held together with metal clamps and silicon-shielded springs. The mufflers are attached to the frame using Akrapovic offroad carbon-fiber clamps. The mufflers are available with titanium outer sleeves, with titanium outlet caps, while the inlet caps and perforated inner sleeves are made of stainless steel. The mufflers have noise dampers for the European and other non-american markets, while for the US market they are equipped with spark arresters. CONFIGURA- TION interference crossover tubes - lambda sensor NO header tube inner sleeves - header tube flanges - header tubes - collector connection link pipe - muffler connection - WELDED collector / header tube - link pipe connection muffler inlet cap /outlet cap SLEEVE JOINT + SILICON SHIELDED SPRING + METAL CLAMP+HOOK+ METAL CLAMP S.S. \ Ti muffler metal interior STAINLESS STEEL muffler outer sleeve TITANIUM muffler clamp CARBON-FIBER muffler bracket - muffler insert CONFIGURATION header tubes collector link pipe material - - STAINLESS STEEL tube shape - - CYLINDRICAL weight comparison (kg) noise measurements (db / rpm) EU YES heat shield - US YES catalytic converter NO stock 2-36 ADDITIONAL DATA AKRAPOVIC difference S.S. link pipe TI link pipe stock - S.S. stock - TI stock 2.03-0.33 - AKRAPOVIC 94 / 5000 94 / 5000 possibility of periodic service without removing A.E.S. oil YES oil filter YES legal for street use NO Technical specifications of Akrapovic exhaust systems and related products subject to change without notice.
EXHAUST PHOTO
BIKE PHOTO
BIKE PHOTO
SHEMATIC HONDA CRF 250 R Slip-on system, model year 2006, 2007, 2008 Product code: S-H2SO2-MT P-MCTM21 MUFFLER CLAMP LEFT P-HF175 FITTING KIT LEFT P-HF171 HANGING FITTING ASSEMBLY P-G20 GRAPHITE GASKET M-H2SO2-MTL MUFFLER LEFT P-VST3PO STICKER P-HF174 FITTING KIT RIGHT P-G19 GRAPHITE GASKET P-S2 SPRING P-HF171 HANGING FITTING ASSEMBLY P-MCTM11 MUFFLER CLAMP RIGHT M-H2SO2-MTR MUFFLER RIGHT V-TUV039 NOISE REDUCTION INSERT V-TUV038 NOISE REDUCTION INSERT (OPTIONAL)
SHEMATIC HONDA CRF 250 R Slip-on system with spark arrester, model year 2006, 2007, 2008 P-HF175 FITTING KIT LEFT Product code: S-H2SO2-MTA P-MCTM21 MUFFLER CLAMP LEFT P-HF171 HANGING FITTING ASSEMBLY P-G20 GRAPHITE GASKET M-H2SO2-MTLA MUFFLER LEFT P-VST3PO STICKER P-HF174 FITTING KIT RIGHT P-G19 GRAPHITE GASKET P-S2 SPRING P-HF171 HANGING FITTING ASSEMBLY P-MCTM11 MUFFLER CLAMP RIGHT M-H2SO2-MTRA MUFFLER RIGHT P-SA002 SPARK ARRESTER
DIAGRAM / CHART 35,0 STOCK EXHAUST AKRAPOVIC SLIP-ON EXHAUST 32,5 25 30,0 24 27,5 23 WhlPwr 25,0 22,5 22 21 EngTrq 20,0 20 17,5 15,0 12,5 19 18 5000 6000 7000 8000 9000 10000 11000 12000 13000 EngSpd RPM