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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
TTR-125 Powroll Thrust Chamber Reviewed
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[QUOTE="theMotoMan, post: 17668, member: 21335"] In the search for cheap HP for the TTR-125, I purchased the Powroll "Thrust Chamber". True to their advertisement, it doesn't make the bike any louder. It is a spacer that fits between the pipe and the spark arrestor. It's primary purpose is to give more room between the internal exhaust stinger and the spark arrestor. This is kind of hard to explain if you have never removed the spark arrestor. The bottom line is a little more power throughout the whole powerband, without an increase in noise output for $30. You gain mostly on top, but it is noticeable down low and mid. My son rides the bike and he came back from riding with a smile and said he is able to wheelie now. I would recommend this modification based on the power increase per $ and the no noise increase. If you are after all out HP, then I would recommend to replace the whole exhaust, but for the cost conscience, it's a bargain. ------------------ 01 YZ250F 00 TTR-125L 00 TTR-90 00 PW-50 [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
TTR-125 Powroll Thrust Chamber Reviewed
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