Self-explanatory...i have the MT brand, uncatted xpipe, and i've heard shorty headers do nothing for performance so would I be able to fit the long tubes with what I have?

 

I believe you need a matching H or X to fit up with longtubes. And yes from everything Ive seen shorty headers arent worth the effort. Longtubes will make a difference but are time consuming to install and will make dropping the tranny more work.

 

Sell your Xpipe and get one with the longtubes. Shorties make about 8 hp up top and very little torque. I got 15 hp and 20 ft lbs of torque from my long tubes.

 

If you run Long tube headers can you still run cats too? I need them to pass yearly inspection..