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Can you take some pics for us?
tanglefoots
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i am looking for a camara.does any body know anything about the max filters.
SISCAKIDD
Expert
I am gonna take mine out, i will take some pics of my gp-1 if that helps,let me know


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OK, that is a H style crossover designed to equalize exhaust flow. According to Arne at White Knuckle, the tube has nothing to do with lack of power or throttle response. If your running stock intake system, you need 140 main jets not the stock 135s. If you run ECPs you may need to go to 170 mains. Is there a good connection where the GP1 bolts onto the stock exhaust? Any Dents? Any Exhaust leaks? Arne and I think you have a lean condition. Just trying to find a soulution. Sorry for the confusion on the H style crossover.
tanglefoots
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yes i had stock jetting , when i open the trotle wide open it was very slow to get to go to 10500 rpm, so today i install a H in the pipe about 4'' from were the clamps go so it look like the gp1 pipe .there is no name on the pipe but it looks the same as the gp1 pipe
Boston RX1
TY 4 Stroke Master
Correct me if I am wrong, but Maximum Performance filters are not claiming any increase in HP or Torque. I have been unable to find anything about this. At least the ECP filters are tested and proven.
tanglefoots
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boston rx1 you are right they dont say that it increase the power, butt hauck perf say slight increase in performance.
tanglefoots
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i check the speed shop for ecp kit and it say it unlock some mid range horspower from the better air flow.
Boston RX1
TY 4 Stroke Master
I do have experience and know of many people who have purchased the ECP kit and are very happy. Mine is being installed in mid December. With this kit and the correct clutching, you will need to hang on tight.
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