MagnaFlow Mufflers

[Nissan Power]

mike kojima wrote:

> Louvered is bad!  When doing backpressure checks, I
> found that louvered cores are as bad as stock
> mufflers, sometimes even worse.

OK, I have never heard anyone say that before,
but seeing that you have done testing on them
I do believe I will change my opinion.

> The louvers create turbulance which increses the
> boundery layer in the pipe, effectivly shrinking it's
> diameter by up to half it's size.

I know they cause turbulence, but had no idea it
was THAT bad!
Does it make any difference which direction
the louvers are ??

> Stay away from louvered cores and those universal
> exhaust flex pipes.

Yep, I got rid of the flex pipe. I have a spherical joint in
it's place now.

Dan
London ON.