Putting this exhaust pipe on my saw turned it into a rip snortin’ wood chewer! I also took the limiter caps off and tuned it but WOW, what a difference! I am a retired machinist/fabricator myself but no longer have a machine/weld shop at my disposal so I bought one of these. I can tell ya from my experience that the angles cut and welding were top notch and came out perfectly where it is suppose to. Well Done!
Does it make the saw more peppy, ya, but not the main reason. Picture this. Its after a storm and you look across the street at your neighbor Jim. He's running a stock 301. You catch eyes when he sees your 2511 and gives you a little wink and finger guns. You crank up your straight piped and tuned 2511 and you see the joy just drain from Jim's face. Hell Mrs. Johnson down the street faints from sheer testosterone flowing from your saw. Am I a professional, no. Is it practical for me, no. The other dads wanna be me and women wanna be with me! #Flex /|^)
If you own an echo 2511 this is a must, install pipe a little tuning on the carb and this saw rips like it should.
The increase in power is noticeable. Although the increase in power is plagued by a huge increase in noise, it is still worth it. I would recommend this exhaust pipe to anyone.