Review on Duck Boat Exhaust Pipe Muffler by Dorian Bharadwaj

Bolts easily onto a 212cc Predator. The muffler is a little restrictive, but not by much. Works well with 1st stage inlet and injector. If you are looking for higher flow, you can drill the end of the muffler or add more holes in the muffler to vent the gases. Also, grinding or polishing the inside of the manifold where it bolts to the engine is not required, but will allow the exhaust to breathe a little better. The muffler is a bit small, but the engine seems to settle down a bit. . My kart no longer wakes up the neighbors, now it only wakes up the nearest neighbors. I give this product 4.5 out of 5 points. Everything is pretty good value for money and good quality. After a little fine tuning you get a good tuning. 4.5/5 ONLY because it needs to be painted before use and very few modifications are needed to make it special.