Dansk "Hotdog" Muffler for 2.5l Boxster

[RaisedOnPorsches]

No? I suppose mixing and matching will mean more time at the dyno at least to make sure one isn't reducing the performance of the car.

[evomind]

Originally Posted by RaisedOnPorsches

No? I suppose mixing and matching will mean more time at the dyno at least to make sure one isn't reducing the performance of the car.

AS long as the exhaust pieces are sized and flow what you want it doesn't make much difference. Restrictions is what make the differences.
Do the Schnell headers have cats, or are those down line?
Interested because I have a 2.5 also.

[RaisedOnPorsches]

The Schnell headers are just headers. They're 2.5L engine exhaust specific. The 2.5L exhausts only have two catalytic converters located in parallel between the headers and the muffler.

All those cat-bypasses that you read about people doing are mostly relating to 2.7L and 3.2L Boxsters where they have four cats total, two per side. Folks are bypassing the secondary cats.

I'm sure there are still benefits for replacing the stock cats on a 2.5L setup with high flow aftermarket cats. Cats simply aren't cheap because of the rare metals that are involved in them.

That's about the full depth of my 2.5L exhaust knowledge at this point. Pelican parts has a decent write-up on exhaust mods.

[evan9eleven]

Originally Posted by RaisedOnPorsches

All those cat-bypasses that you read about people doing are mostly relating to 2.7L and 3.2L Boxsters where they have four cats total, two per side. Folks are bypassing the secondary cats.

"Mostly." Four cats are North America, possibly only USA-specific. Over here in ROW-land we only have the second set of cats, none built into the headers. FWIW.

[mikesz]

Has anyone installed headers with universal high-flow cats and a high performance muffler? On a pre-2000 2.5L car?