QUOTE(alvizz @ Aug 1 2011, 10:34 PM)
since im new here..>_<"
may i know wat is wegow, muffler bullet means for car??
I've explained this a million times, and I shall explain it again.

Wegow is a brand, and the Wegow we're talking about here is a swirling bullet.
Hotbits is also a brand, and the Hotbits that we're usually talking about here means the 4-2-1 exhaust manifold/extractor, the 4 main pipes that extracts exhaust gas out of the engine block into 2 pipes before pulling down to 1 pipe and through the flexipipe.
Muffler is, well, muffler. The one at the end of ur exhaust system where exhaust gases are released into the air/surrounding. Most of the noise made by an exhaust system is determined by the muffler, and there are 2 types of mufflers that usually comes into our discussion; S-Flow muffler & straight flow muffler.
Mid-muffler/midbox is a muffler located anywhere in between of the extractor & the end muffler (S-flow/straight flow). The function of this midbox is usually to suppress exhaust noise, and also acts as a little bit of a performance booster.
Bullet is a pipe that's slightly enlarged in it's centre diameter, and it's named so due to it's bullet-shaped feature.