anyone with a um oversized oil tank

[insaneracin2003]

im looking to get a full pipe,i have a HMF slip-on at the moment but with my winter rebuild in progress,i am looking into getting a full system.my problem is that i installed an oversized oil tank before i started my rebuild ant my stock head pipe i mighty close to the oil tank(it is a screaming ****** to remove either without removing the other)
now my question is.which pipe,if any,will allow for enough clearence to remove the pipe without having to remove the oil tank?
soryy if i confused anyone on this thread,but that is just me....thanks...Paul

[Silverfox@C&DRacing]

I have the sparks full system with the um oil tank but I am not sure if I have had one or the other off since it was installed but If I remember right the tank was installed first then the head pipe with no problems.

[cals400ex]

my x-6 was also easier to get on than my stock pipe. but, i run the stock oil tank too.

[Big - D Racing]

I run the um vented tank, and have the sparks x-6 and have no problems whatsoever taking the header off with the tank installed.