Muffler change out

[Micksan]

When I purchased the bike a couple of weeks ago it came with out the cat-converter. The previous owner had installed a muffler from another brand , ( not sure which) . It works good , and is quite . Problem is that it very big and looks like a water heater .
He also gave me another set w/o any baffles . This would streamline the looks a lot but rattles the neighbors windows, plus make the bike run way to lean.
Does anyone know of a slip on that would work , look good , and not require a remapping of the ECU . Plus would not require a second mortgage on the house .
Thanks
Russ in OKC

 

[HellFire]

The only exhaust that doesn't need the fuel trim altered is the one it came with from the factory. All others are going to have varying back-pressures and require adjusting for it.

 

[Micksan]

So what is this 12 minute tune. Do I need special equipment???

 

[NM ROCKET]

So what is this 12 minute tune. Do I need special equipment???

Start the bike, don't touch the throttle, let it run till the fan comes on.
After the fan comes on wait 12 minutes then turn off the key.
DO NOT TOUCH THE THROTTLE!!!!!
This does small adjustments to adapt for temp, elevation ect.