X-Pipe or alternative to complement new rear boxes?

Rampage · 19th February 2005, 15:58

Hi,

I've just managed to precure a pair of hand made, one off ss rear boxes made by Hayward & Scott. Having not realised that the M5 exhaust is all one piece... (why?) The previous owner had had them put in place of the stocks, basically cutting the orignals off and sleaving the remaining pipes. He had left the stock resonator in place.

I am not sure about cutting off the back boxes and was thinking about replacing the centre resonator with an x-pipe or similar. The new rear boxes are quite small so am concerned that it may become far to loud as there is only one box per side.

Would an x-pipe increase the sound beyond legality?

Recommendations????

-Steve

Need4Spd · 19th February 2005, 16:59

An X pipe will definitely make it louder, but since your boxes are custom, there is no way for us to predict whether they will be "too" loud, let alone whether they will be illegally so (I have no idea what the noise requirements are in your area). If you do a search, you can probably find some sound clips of X pipes combined with some of the popular exhausts such as Kelleners (supposed to be very loud compared to stock but I've not heard them with an X pipe), and Supersprints.

M500PMW · 19th February 2005, 19:34

Steve,

Rekon you should try the rear boxes on the standard system first, I had a complete H+S system on one of my previous vehicles. It became very noisey as I drove very hard and blew the baffles out of it. I must add that H+S were very good and re-packed the silencers FOC even though it was 4/5 yrs old.
Should be able to use genuine BMW joining sleeves from old system to new boxes.
Enjoy.
Regards
Peter.

20th February 2005, 06:26

Quote:

Originally Posted by Rampage

Hi,

I've just managed to precure a pair of hand made, one off ss rear boxes made by Hayward & Scott. Having not realised that the M5 exhaust is all one piece... (why?) The previous owner had had them put in place of the stocks, basically cutting the orignals off and sleaving the remaining pipes. He had left the stock resonator in place.

I am not sure about cutting off the back boxes and was thinking about replacing the centre resonator with an x-pipe or similar. The new rear boxes are quite small so am concerned that it may become far to loud as there is only one box per side.

Would an x-pipe increase the sound beyond legality?

Recommendations????

-Steve

You could purchase an X-pipe (not too expensive), and listen to it during the installation (before welding is completed). If you really didn't like it, you could just go back to stock with a couple of welds.

Cheers, Daniel.

Rampage · 20th February 2005, 10:29

Thanks for the suggestions!

Anyone know where an x-pipe can be purchased in the UK (Daniel?) - cost?

Does the x-pipe have to be welded in?

All the best
-Steve

foxyboym5 · 20th February 2005, 20:39

if you want to hear the eisenmann and xpipe in person, let me know, would be happy to take u for a spin. Mine is the eisenmann 'race' which is basically on par with the kelleners (as eisenmann make the kelleners!)

im near heathrow.

these guys are good for supersprint :

http://www.proven-products.co.uk/sup...t_exhausts.htm

i have bought lots of bits from here over the years and always had excellent service and advice.

Cost me about £190.

cheers
foxy

22nd February 2005, 09:18

Quote:

Originally Posted by foxyboym5

Cost me about £190.

That is not a bad price.

Cheers, Daniel.