M5 DMS driven (evo)

[W8PMC]

ds666 said:

How has insurance cost been affected ?

My Insurer didn't appear to understand my request, but I had them note it on my Policy & no premium increase. Had I fitted an aftermarket exhaust then I'd have got a healthy price hike. Makes no sense in some respects but in others I guess it does.

[mikeN54]

Interesting Paul, what words did you use to describe it to them?

My insurers put on £20 at the start of the year for it. Mid-year would be more as they seem to like charging an admin fee of £30-40 in my experience, on top of the cost for the change itself.

Edited by mikeN54 on Monday 7th March 10:18

[W8PMC]

mikeN54 said:

Interesting Paul, what words did you use to describe it to them?

My insurers put on £20 at the start of the year for it. Mid-year would be more as they seem to like charging an admin fee of £30-40 in my experience, on top of the cost for the change itself.

Edited by mikeN54 on Monday 7th March 10:18

Told them i'd had the code updated which lead to an increase in power & torque. They asked what the %age was & i said around 20%. This confused them & they asked was it more than 50% to which i laughed, they then said more than 25% & i said no & that's what through them as they didn't have a less than 25% option, so no charge. I wasn't certain the operator knew what they were talking about which was why i requested it be noted on my policy. They tried to charge me an Admin fee for that & i refused so he gave up & did it FOC.

[tp81]

Is anyone able to give a account of how different the car feels? My M5 is just over 2 years old, 18000 miles. I have the perfomance pack and DMS are up in Scotland over the next few days and phoned to see if I was keen to have my car chipped. I know Rob and Martin well and they have done a few cars for me over the years, my previous M5 included.

Still a bit undecided on whether or not to bother, at the moment it's pointless. I can hardly get any power onto the road even with winter tyres.

Keen to hear a full appraisal of how the car feels.

Thanks

[likesachange]

Hi tp,

Needless to say it's definately worth doing imo. Traction genuinely doesn't seem to have changed that much for mine (to my surprise) can only put it down to the fact the temps have risen Just above the threshold for the pzero's over the last week.

As a few have said its like you don't need to drop 2-3 gears to get past anything, just the 1.

[Wills2]

From the dyno plot I've seen of a DMS M5, it makes less power up to about 4k then goes full on mental compared to a stock car.

[theboss]

Wills2 said:

From the dyno plot I've seen of a DMS M5, it makes less power up to about 4k then goes full on mental compared to a stock car.

If thats my plot, I should have mentioned it was spinning its wheels at 4k despite several attempts to get a clean run... so the chart is misleading at the lower end. The reality is that its absolutely savage in the mid range compared to stock.

As above, you don't need to change down half as much. On a motorway run this morning I found I could accelerate in 7th (FFS) at a rate which I may have previously changed to 5th for. Its really quite astonishing.

Edited by theboss on Tuesday 8th March 00:26

[W8PMC]

likesachange said:

Hi tp,

Needless to say it's definately worth doing imo. Traction genuinely doesn't seem to have changed that much for mine (to my surprise) can only put it down to the fact the temps have risen Just above the threshold for the pzero's over the last week.

As a few have said its like you don't need to drop 2-3 gears to get past anything, just the 1.

The torque delta between Stage 1 & Stage 2 at 4400rpm is over 110lbsft so between stock & Stage 2 that's more likely to be over 160lbsft which you're going to notice in a big way.

[Wills2]

theboss said:

Wills2 said:

From the dyno plot I've seen of a DMS M5, it makes less power up to about 4k then goes full on mental compared to a stock car.

If thats my plot, I should have mentioned it was spinning its wheels at 4k despite several attempts to get a clean run... so the chart is misleading at the lower end. The reality is that its absolutely savage in the mid range compared to stock.

As above, you don't need to change down half as much. On a motorway run this morning I found I could accelerate in 7th (FFS) at a rate which I may have previously changed to 5th for. Its really quite astonishing.

Edited by theboss on Tuesday 8th March 00:26

Yes it was! Doesn't half climb up, I initial rev range output reading was down to the wheels spinning on the dyno.

[tp81]

So all in all a thumbs up, no slight regrets at all?

[W8PMC]

tp81 said:

So all in all a thumbs up, no slight regrets at all?

I regret organising it as now 6 more M5\6's in the UK with similar performance to mine. Should have kept mine secret

[theboss]

tp81 said:

So all in all a thumbs up, no slight regrets at all?

Certainly no regret from me - its worth doing for the changed power delivery which (I think) further enhances the duality of the car - it's even lazier when wafting / riding the increased mid-range torque and yet even more ferocious at the top end. Only negative seems to be a 10% worsening in fuel consumption but that'll be down to the way I'm driving it.

[anonymous-user]

W8PMC said:

I regret organising it as now 6 more M5\6's in the UK with similar performance to mine. Should have kept mine secret

But we're all super grateful

I'm late to the party here but wanted to share a few thoughts:

1 - Massive thanks to Paul for sorting it all out.

2 - The DMS guys were great, friendly, knowledgeable and confidence inspiring.

3 - Not everybody who drives a BMW is a Tw@ as all the fellow participants were thoroughly nice chaps

4 - The change to the car is in my opinion significant and very noticeable, both in a very positive fashion.

[tp81]

Excellent. Car being done as I type, Martin from DMS currently working his magic. He expects to be finished in around 1 Hour from now.

[mikeN54]

Marvellous, you won't be disappointed.

£/hp it's the best performance mod you can do. It's made my M6 into the car it ought to be.

Why spend 6k on a daft exhaust that adds nothing when this DMS tune will give you a different car for a 1/4 of that!

[likesachange]

tp81 said:

Excellent. Car being done as I type, Martin from DMS currently working his magic. He expects to be finished in around 1 Hour from now.

Tell martin if he is a real man he will be driving the atom up on his next customer road trip (that is if martin is the one i think it is ha)

Are you north of glasgow or south?

I was up on the 701 sunday morning what a fabulous road

[theboss]

tp81 said:

Excellent. Car being done as I type, Martin from DMS currently working his magic. He expects to be finished in around 1 Hour from now.

Good man! Talk about not pissing around and just getting on with it

[Jazzer]

Evening chaps!

Without meaning to piss on your parade....

What exactly is the position with regard to insurance and warranty here?

I'm told BMW can now detect the heavy breathing, but I'm not sure.

Insurance?

I'd love to do this and keep my F10, but the worry of things would bother me.

Sounds amazing though....very reminiscent of the tuning bug I caught in my Scooby/Evo days!

[S800VXR]

DMS assure you that they can de-map the cars and it's not traceable. I'm far from an IT guru so have to take their word on that. I suspect you would only need to worry if the engine grenaded which sounds very unlikely so long as you maintain it properly. If the clutches start going then it's DIY upgrade time as pointless getting BMW to do it only for them to slip again.

BTW, add an Ackro to the remap and it finishes things off,.

[W8PMC]

Jazzer said:

Evening chaps!

Without meaning to piss on your parade....

What exactly is the position with regard to insurance and warranty here?

I'm told BMW can now detect the heavy breathing, but I'm not sure.

Insurance?

I'd love to do this and keep my F10, but the worry of things would bother me.

Sounds amazing though....very reminiscent of the tuning bug I caught in my Scooby/Evo days!

Insurance companies vary in their approach. Mine was only interested in mechanical modifications such as wheels & exhausts. As for being detectable, i'm sure if BMW wanted to find an indiscretion then with sufficient investigation they could, however as above the car can be returned to OEM easily & this isn't a flash map so no checksum & no leave behinds. That said, mine's been on for 12mths & has been into the dealer network twice during that time, once for a small warranty issue & the other for a service & nothing was said.

If the drivetrain at some point detonated then fair enough an issue could arise which is why we went the DMS route so have the benefit of an insurance backed warranty, however some big power cars about in the US now with close to stock internals (clutches upgraded) running over 900bhp so i think the engine & transmission are more than strong enough to cope with 700-750.