325i exhaust system help

[redcar]

Hello,

Is a 325i Scorpion backbox specific to a 3 piece or 2 piece exhaust system, or will the backbox fit both 3 piece AND 2 piece exhaust system?

Thanks in advance.

[Duke137]

It will be one or the other Harj, 2 and 3 piece are NOT interchangeable unless you start going down the route of Link pipes etc

Need to see a pic really but generally the Scorpion stuff is from a 3 piece system

[redcar]

Ok, so with regards to the scorpion stuff, are they all 3 piece systems?

On a standard exhaust system, what actually is the difference between the 2 piece and 3 piece system as I thought it may just be that on a 2 piece system the downpipes and centre section are joined, whereas the backbox on both the 3 piece and 2 piece systems are the same. Am I wrong?

Cheers for the help

[Duke137]

Back box on a 2 piece has a much longer pipe section to the middle box.

The middle box and down pipes then bolt directly to the manifold

3 piece is, down pipes, middle box and back box

None of it is interchangeable without chopping/migging/bodging etc

[redcar]

Ok I see, thanks for that info.

So are all of the scorpion backboxes 3 piece

[Duke137]

Ok I see, thanks for that info.

So are all of the scorpion backboxes 3 piece

Don't know for sure but I would say so mate, never seen a 2 piece scorpion back box for a 325i personally but that doesn't mean they don't exist?! Someone else will know for sure.

I seem to remember B7/BSS325 breaking a sport with a link pipe for a 2 piece mid box and 3 piece scorpion back box though

[redcar]

Ok thank you for the help.