Seems like it would not be hard to make a mini heat exchanger by making a tube or box around only the secondary pipe. There is lots of room.

Some one could even make up a kit.

Another idea would be the have the secondary pipe turn further away from the motor and add a sport cat to each side.

Optionally, could add a mini heat exchanger to the side or off the end of the cats. Purrrrrrfict. ]http://forums.pelicanparts.com/support/smileys/cat.gifhttp://forums.pelicanparts.com/support/smileys/cat.gif

The OBX headers are the same inner width as the Euro pipes on 3.2 ROW / Euro engines, correct? If so, there is really no benefit going with the OBX headers, correct?

TIA,

Scott

doesn't the Euro 3.2 have the pipe that runs back by the transmission... OBX is like a backdated 911 header... if that is the case you gain not having a messed up and long exhaust path...at least on the one side.

New Thread?
 

I keep coming back here thinking someone's posted about SW chips, but it seems to be about exhausts, and has been for quite some time now.:)

Incorrect... If that were actually true, the Euro exhaust manifolds would be highly sought after...

Factory Euro/USA heat exchangers (same-same)are larger than SSI's in side. I think the OBX headers are biger inside yet but not sure.

SSI's and the OBX have equal length primary tubes. The SSI's I belive have a sweet spot aroung 2500rpm's on a 3.2 where they are very efficent.

Factory heat exchangers are not really a problem, it is mostly the Cat that is. Take off the cat and you should get close to Euro HP numbers. Euro just has a bit more compression.

If both are chiped for US fuel, the US should be as fast.

At least that is what I want to belive.