CPI vs OOF Pipes

[Loc]

I have been thinking about ditching the CPI Inframes for a set of OOF Drag pipes. I am running them on a 421 Cub and do some duning and alot of racing. The motor has no port work and was wondering if I would see much of a power increase.

[252wheelieking]

I have been thinking about ditching the CPI Inframes for a set of OOF Drag pipes. I am running them on a 421 Cub and do some duning and alot of racing. The motor has no port work and was wondering if I would see much of a power increase.

 

How much would you sell the CPI's for?

[Loc]

i would still keep the CPI's. You never know when you want to change back.

[J-Madd]

On an unported 421 Cub, I think you can pick up some hp with Shearers (either OOF or IF) vs the CPIs.

[Loc]

Will the Shearers fit better than the Cpi

[camatv]

out frames all fit about the same unported cub i'd also consider snipers..

[sleeper06]

I have a set of cpis on a ported cub and a set of shearers on an unported cub,the shearers def feel better up top but from a dig the cpis short distance i cant tell the diffrence

[MacRacer1]

I switched from cpi inframes to shearer oofs on my ported 4 mil and will never go back.

[crazycanuck]

Love my shearer's on my unported cub.. pull to the moon, They look and sound amazing. the fit is kinda tricky but with a few washers on the stator side and they fit perfect.

I had CPI"s on a stock cylinder bike and i fuckin hated them. they look ugly, hard to get at the plugs and i burnt my legs all the time.. they came on a little sooner than the shearers but oh well, the small amount of low end they got me wasnt worth the other complaints i had.

 

I myself want a set of unsilenced oof's but i think i dune too much and they might not stand up to that type of riding.

[camatv]

has anyone thats actually bought a set of snipers even ran them yet??

 

i have a perfect "mule" motor/ bike i can do a real world test on..