Generally speaking in a 103 application with a fairly short cam like the CR 570-2 or TW-222 we generally see about 10% increase in horsepower and about 5% increase in torque with our Level B heads. This will of course depend on the exhaust system and the rest of the combination

 

Fat Cat, of course... That would include .040” head gaskets and decking the heads -.005”

 

Thanks for the quick reply!

 

With headwork we would set the combustion chamber to achieve the intended compression for the cam being utilized and use a .030 head gasket. With the right pipe, headwork, & cam you'll have a winner

 

I think it’s a shame that the E pipe is going away I was lucky enough to get one for a late model touring bike. Certainly not the biggest baddest pipe out there .... the charts speak for them self’s as as far as usable torque in the everyday cruising range where most of us ride. The fact that is also is adjustable via the end cap and somewhat tame in sound compared to a lot of the other pipes that are popular now. I been running these E-pipes since the late nineties 😏

 

Thank You Fuel Moto USA. Great information.

 

Thanks for everybody's hard work!


I took 'Totalgearhead's' spreadsheet, copied this area, and added some color, and totals, so I could compare these better than the graph.

 

Now this is what I’m talking about! Great graph! I guess my 222’s really are all that and a bag of chips

 

Thanks Jamie for your work good comparisons.

 

The E-Series pipes are not going away, we are however currently backordered on the Twin Cam FLH version. We have them in production and will have more E-Series 2/1's available later this winter. We love these pipes as well for the same reasons you are stating