So I had drag pipes and I have quite a bit of engine work upgrades done to the bike I cut off the pipes and added the Rinehart slip-ons my question is should I add a crossover pipe if so where should I locate it I have Wiseco pistons 10 to 1 compression and 10 / stage 2 thunderstorm heads Andrews N8 cam Primo dynatek 2000i module twin Tec single fire coil Riviera Primo clutch

 

that is a good?
will it help, probably.
if it were a car/truck, i could give some advise but on a mc, do not know if it would apply.
on the above, we would apply paint to the exh pipes and run the vehicle down the road and this would burn the paint in a certain area and this is where we would place the balance pipe.

 

I've heard of that on cars or truck thanks anyhow

 

Would be nice to know WTF kind of bike you're working on...throw us a bone here...

 

It's a 1200 sportster 1999 sorry

 

two options here, follow the stock with cross-over by the jugs or hidden down by the lower rail, at least you know hd did r&r on the placement. OR, install a 2>1 exh, i run the danmoto highwayman.

 

BSA introduced the cross-over pipe way back and every twin still uses something similar, to boost low/mid range torque, to this day. So they are a worthwhile feature, however I also agree with bustert - simply use a 'proper' 2-into-1 for best results. My choice is a SuperTrapp - they make them for big twins and Sporties.