Bike exhaust

[voucht]

Hi,
I'm about to get, for free, a motorbike rear muffler for my Roadster. It is from a BMW K1300R. My best friend in France will give it to me, I just have to pay for the shipment.


PotBMW par Voucht71, sur Flickr

This rear muffler has an integrated catalyst (and I need one on my car to pass the emission test), which is pretty cool because I won't have to fit an ugly cat on the line (or the better looking but very expensive stainless steel conical cat).

The engine of this motorbike, when unleashed, is more powerful than my 115 hp 2.0i DOHC from the Sierra, so it should cope with it with no problem.


But by safety, before having it sent to me, I'd like to have your opinion. Do you see any reason why it could not work on my car?


Thanks a lot.

[MikeB]

Seem to remember when I looked, standard bike cans were quite restrictive, but other than that should work.

[voucht]

Thank you for the comment Mike.

Yes, it has been my concern too, but I'm quite confident with this can as
- it has a 75mm diameter inlet (much larger than my main line)
- I checked the performance graphs of after market sports cans (like Devil, etc.) for the same bike, and the gain of performance is peanuts if you compare to the original can. So I guess the original can is not too bad.

But of course, I can't be sure before trying it on the road

Thanks for the input.

[Johno]

I spent a while looking around the Locost forum before I chose my R1 can.
The general consensus was if the BHP of the bike was more than the engine you are fitting in your car it should be fine.
Well I hope that's true as it's fitted now...
She certainly looks a beastie of a can, can't see why it wouldn't be ok..

[voucht]

Originally Posted by Johno

I spent a while looking around the Locost forum before I chose my R1 can.
The general consensus was if the BHP of the bike was more than the engine you are fitting in your car it should be fine.
Well I hope that's true as it's fitted now...
She certainly looks a beastie of a can, can't see why it wouldn't be ok..

Thank you for the input Johno.

I think I know what you mean by "beastie"... yes, I was concerned by the look of it too... not very "sevenesque"... I know...

Well, assuming that my Roadster will not have a "retro look", why not? We'll see how it looks when it is fitted!

It should be with me hopefully any time next week.

Thanks!

[voucht]

I received the rear muffler from the BMW K1300R on Saturday.


2013-10-26_11-16-37 par Voucht71, sur Flickr

Now I have to find a way to fit it. Originally, there is one fitting point on a clamp, and, on the bike, it is "hanging" from this upper mounting point.


2013-10-26_11-17-18 par Voucht71, sur Flickr
(on this picture, I'm holding the muffler by its original upper mounting point)

On the Roadster, as my exhaust line is on the left side, I need to turn it up side down. And the muffler not being symmetrical on the longitudinal axis (its left shape is not the same as its right shape) I just can't turn the clamp around (unless I completely straighten it flat, and shape it again perfectly to get it flush with every face/edge of the muffler section's shape). So if I turn the muffler up side down, and keep the clap as it is, the mounting point will be is under the muffler.


2013-10-26_11-17-34 par Voucht71, sur Flickr
(on this picture, the mounting point is in my fingers)

How do you guys think I should mount it? I will of course use a rubber mount, but is a lower point OK ? It feels weird as the piece is almost 7 kg (integrated cat.).

Any idea, opinion, tip..; is very welcome

Thanks a lot.