Is my exhaust supposed to look like this?

[JonnyOg]

http://i.imgur.com/01ijs.jpg

Just noticed this while crawlin around under my car. What would cause this? And would replacing the pipe cause any performance gains?

[Swanny]

Position? Corrosion? Eh??

[JonnyOg]

The huge dent

[frankie591]

if you have a stock m20, that will not cause anything close to a restriction. As for whether it is supposed to be like that, I have no idea.

[dlhoovler]

I think my eta's exhaust had a similar flattened area in the same place--where the pipe passes under the rear subframe. Might be factory, but my exhaust was so cobbled together I'm not sure. I swapped it for an "i" setup from the downpipes on back.

-Dave

[JonnyOg]

From a 318is. It would have to be some pretty intense subframe movement.

[Swanny]

Looks very deliberate to me. I had a flat area by the same hanger on my new I muffler.

[kamotors]

yes its supposed to have that area flattened for clearance

[Swanny]

Yay for verification!

[dnguyen1963]

http://i.imgur.com/01ijs.jpg


Just noticed this while crawlin around under my car. What would cause this? And would replacing the pipe cause any performance gains?

Did you not notice the location of your fuel filter?

[toointoxicated60]

the fuel filter is where it suppose to be

[Swanny]

Yeah thats the double decker pressure pump and filter. Also where the damned check valve that tends to fail and leak.

[DetailAddict]

yes, it's suppose to be there... i have it on my 325e stock exhaust as well... most stock systems are like that...

this is off of an e90 (left)