Twin 2.5" into 3" single over diff.

Any good for an xr6t? Any input appreciated.

Depends on power, single 3 is a bit small. Gas has cooled a bit as it get down there though. Wouldnt want that over 300rwkw

why single 3"...? Too small IMHO

Just bought a stainless herrod exhaust and that's what size it is.

Looks like I should have done my research first.

Take to a zorst shop and get it modded.

what power are you aiming for?

Sounds like a plan! Next question 3.5" or 4" over the diff?

Planning on making around 350rwkw for now

3.5" would be plenty and has better clearance than 4" 3" will hurt you @ 350rwkw

where does the system merge from twin to single 3"? if the muffler are 3" you may be better off selling it and buying a decent system

You have a problem there. If I remember rightly, the insides of that muffler will have a single 76mm pipe somewhere in it as well so changing the outside bit - the "over the diff" section will not help. Cutting mufflers and fiddling with the inside is a tough job without the right sort of gear - and may not do much at all other than add noise.

For 350 RWKW the general consensus is a single 90 MM or twin 63.

IMO - and sorry to say - classifieds might be where it will need to go.

can you take it back to them? refund and tell them why.