arrow zorst questions from a noob

I have a full arrow pipe on my XR the rear rivets keep wearing out from what I presume is the back pressure pushing the end cap, anyway my q is.. this can is quite long and its titanium if I cut an inch off and re packed would it affect the performance? reason rivets have worn oval holes ...is it tuned? or is the header where the performance comes in?
The pipe is tad quietr than the T4 but sounds neat its kind of like a deeper bassy rumbly snarl sound that I have growm fond of..
and.....would a T4 fit the arrow headers? I enjoy bottom end power most??
Please help

But I do know Ti is pretty weird to work with cold. Perhaps a good Google search on cutting Ti might help.

chrism wrote:I have a full arrow pipe on my XR the rear rivets keep wearing out from what I presume is the back pressure pushing the end cap, anyway my q is.. this can is quite long and its titanium if I cut an inch off and re packed would it affect the performance? reason rivets have worn oval holes ...is it tuned? or is the header where the performance comes in?
The pipe is tad quietr than the T4 but sounds neat its kind of like a deeper bassy rumbly snarl sound that I have growm fond of..
and.....would a T4 fit the arrow headers? I enjoy bottom end power most??
Please help