Originally Posted by merdith6

I think you would be happy with the 9853 pipe. the one you have is a torque pipe, but it limmits the engine and doesn't let it breathe. the ws7 is a great engine, and probablly needs to be tuned better. I will admit it lacks bottom end, and the guy above said it could use stiffer springs. The buggy you have is heavier than the newer cars, that engine would work great in a lighter car. I had a s7 in a 7.5 and it was slower on bottom end too. I know exactly what your saying. It's irritating. For that buggy I would get a Novarossi p5. You could send the ws7 to get it modded and that might help. On the plus side the w7 is really reliable and will last for a long time. Good luck. I suggest getting an xray 808 buggy and putting that ws7 engine in it. Perfect combo.