XSeries-forum

I did do a google search but couldn't find a definitive answer.
Similarly is it better to have your car mapped before or after an LPG installation?
And can you delete the cats post LPG conversion and pass an MOT or not?
Can BMW independents still diagnose engine faults on cars with LPG systems?

I've narrowed potential installers down to two....Hilton autogas (Birmingham) or arun autogas (littlehampton)

[quote="Sy4.8is"]
I did do a google search but couldn't find a definitive answer.
Similarly is it better to have your car mapped before or after an LPG installation?
And can you delete the cats post LPG conversion and pass an MOT or not?
Can BMW independents still diagnose engine faults on cars with LPG systems?

I've narrowed potential installers down to two....Hilton autogas (Birmingham) or arun autogas (littlehampton)
[/quote]
Raj has a 4.8 is and has had a recent LPG conversion. He lives in Walsall/ wolves I think, so he's the best man to ask. He's a perfectionalist when it comes to mods on his X5.
Search his posts on the conversion, as I remember it was well documented with Photos too.

I dont believe there is too much difference between the two. When I was researching I too had the same issue where people were happy with both.

I have BRC btw

[quote="Imy"]
I dont believe there is too much difference between the two. When I was researching I too had the same issue where people were happy with both.

I have BRC btw
[/quote]

How are you finding it? Can your Bmw independent still diagnose faults etc.?

I've throughly enjoyed it. Living in London I've made the most of it with traffic etc. My Indy has never had any problems with coding etc

Why do You want to go for BRC or Prins?

BRC/Prins - They seem to be the ones considered most reliable/high quality.....just been for a test drive in a BMW 335d x drive touring....only 800 miles on the clock.....very tempted to sell the x5.....actually, no I won't sell, I just need to make it go faster and LPG it....would 100 cell cats give more power?

Just seen this....
http://www.turnermotorsport.com/p-18408 ... aders.aspx

.....with sports cats and a remap.....then LPG....

Hiya. Been off the grid for a few weeks lol.

I used Hilton for my Prins system. They are superb and I seriously recommend them.
I went with the Lrins system after a lot of research. Hilton are only about 10mins from me so nice and local. The LPG works superbly with the 4.8 and the mods I have done help it to be both quick and economical lol.

I've just completed a couple of more mods to help things along too.

[quote="Sy4.8is"]


Just seen this....
http://www.turnermotorsport.com/p-18408 ... aders.aspx

.....with sports cats and a remap.....then LPG....
[/quote]

I've looked at the Supersprint full system and these specifically. Costly though innit lol.

I've gone with 200cel sports cats to tie in nicely with my custom Magnaflow system. Sounds epic and has freed it up a little. The manifolds are the the real performance key.

Mine just passed it's mot no probs on LPG and with the system I now have.

Oh and no prove with diagnosing issues with the LPG system fitted. The LPG system uses a piggyback ecu to run it so the OE one is still there doing everything.

Ac stag ecu,  2xomvl hp reducer,  hana injectors... Never had any issues.  Prins, brc well overpriced for 10years x5's.

[quote="Raj"]
[quote="Sy4.8is"]


Just seen this....
http://www.turnermotorsport.com/p-18408 ... aders.aspx

.....with sports cats and a remap.....then LPG....
[/quote]

I've looked at the Supersprint full system and these specifically. Costly though innit lol.

I've gone with 200cel sports cats to tie in nicely with my custom Magnaflow system. Sounds epic and has freed it up a little. The manifolds are the the real performance key.

Mine just passed it's mot no probs on LPG and with the system I now have.

Oh and no prove with diagnosing issues with the LPG system fitted. The LPG system uses a piggyback ecu to run it so the OE one is still there doing everything.
[/quote]

Thanks for the info....I think you're right, the manifolds are prob quite restrictive , may see if an exhaust shop like Powerspeed can fabricate something similar for less, but keep the stock rear system so it's not too loud.