oem muffler hack

In a quest to find more power without the drone associated in aftermarket mufflers, I found this picture:





Does anyone have info on the Korda mod, NLA? What the details are?

[j.fro]

See where the arrow from #3 is pointing? That's where you want to cut. You don't have to cut the muffler open; you don't even need to remove it from the car. Pull the rear bumper cover, then disconnect the pipes going from the cats to the muffler. Using a cutting wheel on a Dremmel extension, an air chisel, or whatever you can manage to fit into the muffler intake pipe, cut holes in the pipe. Do this on both sides. The more you open it up, the louder it will be.

[meerzee]

I am confused...drilling and cutting mufflers for better sound? No offense, isn't this getting a little ricey? Last time I checked this is a Porsche Boxster, not a Chevy Cavalier. If you are going to replace the exhaust then fine, but let's try to draw the line somewhere.

[Peer]

The more I look at this picture, the more confused I get. What do the numbered arrows represent, and is this muffler pre-mod or post mod...?

-- peer

[Kirk]

Originally Posted by Peer

The more I look at this picture, the more confused I get. What do the numbered arrows represent, and is this muffler pre-mod or post mod...?

-- peer

Based on another stock muffler cut-away photo that I have I would say this looks like an unmodified muffler. The arrows show the flow of exhaust gas through the system.

[Kirk]

I think that Tool Pants originally posted this cut away photo of a muffler. Again, I believe this is stock.

[Peer]

Kirk wrote:
> The arrows show the flow of exhaust gas through the system.

Okay -- so I can follow the three first arrows, but arrow #4 makes no sense to me.

-- peer