This is the ultimate carburator for the traxxsas 2.5 and 3.3 none better hands down the best just try one and see for your self I have thus carburator on all my nitros and they rip every time no problems starting just rip
Best carburetor to get hands down had issues with traxxas 3.3 this fixed every bit of it had a thick rubber for great sealing on the motor side 100 percent wish it was cheaper but it works so great