Anybody made the switch from rhinehart true duals to a fatcat and have actual hp/tq gain #s. Im trying to decide if the gain is enough difference to spend the money on a fatcat and dyno time. The bike has a 103 and rhineharts now.

 

The 103 has a 570 cam, screaming eagle heads and 10.1-1 compression

 

I didn't have Rineharts and I don't have any numbers for ya. But I just replaced my V&H true duals/Python slip ons with Fatcat + ghost pipe. I am very happy with the performance, and it is pretty noticeable.

Shakey

 

Not Rineharts, but I went from V&H true duals to a Fat Cat. Got 10 more hp and 2 ft. lbs. torque with the D&D. Different dynos so I don't put much stock in the numbers. The difference in throttle response was amazing. The Fat Cat made the bike more fun to ride. Twist the throttle and it jumps where before it just accelerated smoothly. Got more top end speed with the Fat Cat too.

 

Not to start a debate, any 2 into 1 will out perform true duals, especially on the low to mid rpm sections. Most true duals suffer down low to mid, the D & D pipe kicks butt, looks great, and sounds fantastic. Your choice of baffle will determine how loud and when the power kicks in. I think the D & D is the best looking and performing of all the 2 into 1 systems and you can get a ghost pipe to mimic the look of a balanced 2 muffler system depending on the year of your scoot. Had one on a SEEG with the 103, man did it wake it up! Very distinct sound as well especially with the performance baffle but its loud!