TRD exhaust vs Perrin 2.5" resonated
 

Which one is louder?

Subbed. Been trying to figure this out as well.

Relativity is key here, but, from what I've read, I'd guess the Perrin would be louder.

which one give the better performance

Both will give you a tiny bump in peak ponies, but nothing even worth discussing IMO

Honestly I've always felt my TRD is louder than what people expect. I wouldn't be surprised that it's just a tad louder or equal to Perrin 2.5 res

I been looking at the Perrin as well. Hopefully in the next couple of days I can place my order

The difference in volume will be even smaller than the power gains. Keep in mind that the TRD mid pipe pinches down to be smaller than OEM at one point.

Neither will give you anything HP wise, and both will sound louder than stock but not obnoxious at all. Neither will drone on the highway either.