Mufflas vs Da Pipes

[caballo]

which one makes da' mos' powa?!

Larger diameter piping.

More efficient mufflers.

For real... if you could only change one. Which would make more power?

This is a hypothetical so please don't respond with "changing just the pipes isn't practical...and it's stupid". I know that. So what do you think results in the most hp increase? (short of a full catback)

 

[Aaron 4.6]

This is kind of like arguing between Splitfires and Bosch +4s. The performance gain from both together is not much, so dividing the small amount into fractions isn't worth the effort to find out. Nice sig, though.

 

[caballo]

el bumpo...

 

[billyfe390]

Strictly speaking about 4.6 stangs probably the mufflers but the results are so minimal its almost not worth bringing up.