New Exhaust system/trade

i am looking for a new exhaust for my f1 aircooled as i have decided not to race so there is no point of an exhaust which is so loud for where i will be riding on my property. I am willing to trade the exhaust i have at the moment which is a fully custom fabricated exhaust and its fully race tuned for power through all rev ranges.

If i cant find a trade what are some good options in new exhaust systems that will be a straight fit and not so loud.

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"The More You Sweat Now The Less You Bleed Later"
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F1 Aircooled
Ex Oz Mini Moto Team bike
Race tuned hand built exhaust
PMT 41
Alloy brake levers
Bar ends
Genuine 18mm Dell'Orto carburettor
Uni Filter
Quick turn throttle
Engine fully worked and rebuilt by two stroke tuner
110 octane fuel
New Race Clutch
Alot more extras
Rated at around 9HP
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Pics and mods here
http://www.pocket-bike-racing.com.au...?do=view&g=234

just keep the one u have and pack the muffeler with silencing mufeler packing. the pipe is fitted on that bike for a reason, with a dif pipe it could be strgaling.

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Blata rep Watercooled
Triple stage reeds,19mm dell
Reed Spacer,Gloss white
Senior Stock Watercooled
South Morang & Port Mel
Cag in the making