how much HP by adding........

Originally posted by Honda_Gurl
thanks 4thgen actually when i got my muffler, i also added new piping, so i don't know if it helped me gain any hp or not. but i'm still confused as to how you can LOSE hp???

Drive a car with no muffler. Now add a muffler. You've lost hp. More muff = more power lost. Damn the muff!

I know, the original poster was probably talking about *replacing* his stock muffler with an N1, but it's not what he said. I just like to fight the misconception that adding mufflers add power - you're really just recucing the amount of power lost in using the restrictive stock muffler & piping.

To be additionally specific, there is also an advantage to creating a bit of a vaccuum to pull hot exhaust gases from the manifold, so you probably wouldn't want *nothing* behind the engine.