Hi everyone,

It may sound silly but can anyone please confirm if I can fit exhaust silencer in picture 2 (with corresponding longer piping), if I currently have the one in the 1st picture?

I've found both of them to be fitted on same 1.2 MPI engine (69HP). Is there any difference at all?

Thanks!

It should be fine the small pipe is just without the chrome trim in the end that's in the higher end moddels

Chris, I think you're looking at the wrong end. The stub in the second picture connects to the centre pipe, not the chrome trim - that is at the other end of the box, where the exhaust hangers are.

Also the replacement box has a different cross section; it is more rounded than the OEM part.

It might fit if you cut off either the long pipe, or the existing centre pipe, at an appropriate point, but it is going to need some fettling - it won't be plug 'n' play.

That said, replacing only part of any exhaust after it's been on the car more than a few months normally requires some fettling, and much swearing.

Couldn't find better 2nd picture, sorry about that. jrkitching is right, both have the chrome tip at the rear end.

So this job would require minor adjustments to fit ... I might abandon this task after all, I guess.
Considering that my current catalytic converter is soldered with the flexible coupling, getting to cut it for fitting new center pipe with short-end backbox, might become complicated.
If any serious coming issue requires this, i will definitely give a try to changing the assembly starting next to the converter.

Thank you for your replies!

My replacement back box is round but still fits fine.

I initially thought the more rounded back box may be an aftermarket one.

I'm not 100% familiar with the 500.. but my Stilo came with a single piece centre and rear silencer. Presumably a single piece, fitted to the car before the rear subframe went on, is cheaper/easier to build.

Replacement silencers have a short piece of pipe as in the first picture above, so that you can remove the exhaust without dropping the rear sub-frame. It also suggests that when the original silencer dies, you are supposed to cut the old centre pipe in the right place so that it meets/slightly overlaps the shorter pipe on the new silencer. The new silencer has a flared part (as in the picture) which would fit over the old pipe, so you have to cut the old pipe to give 5-6cm of overlap.

The second silencer appears to be a variation of the same principle. It looks like it's designed to fit to a system where the centre pipe has been cut (just closer to the silencer than the first silencer requires).

If the 500 stock silencer looks like picture A (i.e. it's got a separate rear silencer as standard) then you would have to keep the pipe part, but cut off the silencer, to fit the new one instead. This would give you two joins instead of one, so doesn't appeal to me for aesthetic reasons.. but technically it works the same.

If the 500 stock silencer is a single piece from the cat back, then you would have to cut it somewhere to replace the silencer.. so the second silencer isn't any more or less trouble than the first one.

Arguably the second one is neater, since you don't have to mess about with feeding the new curved pipe over the rear sub-frame... but the join will form something of a "hinge" so it may be trickier to seal, especially since space to add a clamp might be restricted. The "looped" pipe isn't too tricky to replace on my Stilo.


Ralf S.

Thanks for the insight and explanations, Ralf!

Your statements make sense. I wouldn't want to have an additional join either ... so when I decide to change the back box, I will either look to buy one similar with the one I currently have or replace both the center pipe and the back box (i.e. if back box as in 2nd picture).

All the best!