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300xs mods

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Old 08-25-2010, 10:05 PM
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Default 300xs mods

Hello im new to the forum, does anyone know the best place to have mods done to 300xs's, im looking to get as much power out of them as possible. Ive heard that caldwell racing is good has anyone else heard of them. Thanks
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Old 08-25-2010, 11:17 PM
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Quote:
Originally Posted by braith View Post
Hello im new to the forum, does anyone know the best place to have mods done to 300xs's, im looking to get as much power out of them as possible. Ive heard that caldwell racing is good has anyone else heard of them. Thanks
I would check out Scream and Fly. Those guys are the 2 stroke gurus.
www.screamandfly.com
Regards,
Steve
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Old 08-26-2010, 06:21 AM
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www.simonmotorsports.com

http://www.yamaha-rebuild.com/Merc%20high%20perf.htm

http://yamaha-rebuild.com/Mercury%20250XS.htm
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Old 03-06-2014, 02:14 PM
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Try Dave Bush Racing. I just had my ECU's done by them but haven't tried them out yet due to the weather in NJ. They claim 25 - 30 HP in the 300XS.
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Old 03-06-2014, 10:00 PM
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I had my ecu's and flywheel done by simon motorsports...Havent run the boat yet but he said to expect 35 over stock. The only guys I would trust with the 300xs are Dave Bush or Simon. I even hear that they share info and work together sometimes.
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Old 03-07-2014, 10:23 AM
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X2 on Dave Bush
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Old 07-28-2014, 09:18 PM
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Any updates on your DBR 1.1 kits?
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