Insurance cost with supercharger

[Zoomer]

So I am hoping someone might have added a supercharger to their Z4 ( mines a 64k 3.0 ) as I keep looking at the M and Alpina and i am thinking that as I know the good and bad of my car it might be easier to add a supercharger, but the question is how much will the insurance go up by/to.
I get a brill deal at the moment as a 52 year old with 12 year no claims bonus I pay £163 based on a garaged car SD &P doing up to 5k miles per annum. I know this is cheap but what increase of price would adding the supercharger do?

I know there’s not many guys with supercharger son their Zeds but there must be a few.

Looking at a raptor charger at the moment as it seems a good deal

 

[Jembo]

I’m paying about £30 more for a //M, so when they add a zero to your ins premium do the maths

- cost of ESS
- cost of add ins
- value of your car
- cost of an //M

 

[srhutch]

I’m paying about £30 more for a //M, so when they add a zero to your ins premium do the maths

- cost of ESS
- cost of add ins
- value of your car
- cost of an //M

£30 more compared to what Jem?

My insurance went down 20% on the ///M when I changed from a 2.5si

OP, the only way you are going to find out is to contact your insurance company. There are too many variables for anybody to give you an answer.

 

[Ducklakeview]

My insurers (motor trade policy) have REALLY spat their dummy out after I asked them the question regarding mine.

Apparently because it's "more than a 15%b power increase" it falls outside their normal underwriting acceptance criteria. However, the same policy covers me to drive ANYTHING in my "custody or control" for motor trade, business or sdp use, so go figure.

Anyway, it's been referred to underwriting, so am awaiting the news, good or bad - Before I even open the box..

Mike

 

[Jembo]

I’m paying about £30 more for a //M, so when they add a zero to your ins premium do the maths

- cost of ESS
- cost of add ins
- value of your car
- cost of an //M

£30 more compared to what Jem?

The OP quotes £163 for ins & am paying around £200 for the //M

Hearing they ‘spat their dummy out’ came as no surprise, hence the recommendation if it’s more ponies the OP wants, it may be more cost effective to go the //M route

 

[Zoomer]

Thanks for the response I’ll ask the insurance company

 

[Tony Cluedo]

I am going to do the same to my ///M soon and have just started to get some quotes in. So far they are ranging from £423 to £850.

 

[peteslag]

Most insurers will be deeply unhappy with a non standard supercharger. I had a highly modified VX220 with a whacking great big supercharger fitted. I used Chris Knott, very cheap and completely happy with modifications. Try Adrian Flux and performance direct as well. There are hundreds of modified car insurers out there.

 

[Zoomer]

Thanks peteslag

 

[Silverzedtom]

As above you’d have to call them, I wouldn’t be suprised if most if not all standard insurance companies said ‘thanks but no thanks’.

It has to be worth getting some quotes from specialists? Although N/A my cars insured through Adrian Flux and I’d reccomend them to anyone

 

[buzyg]

I’m paying about £30 more for a //M, so when they add a zero to your ins premium do the maths

- cost of ESS
- cost of add ins
- value of your car
- cost of an //M

£30 more compared to what Jem?

The OP quotes £163 for ins & am paying around £200 for the //M

Hearing they ‘spat their dummy out’ came as no surprise, hence the recommendation if it’s more ponies the OP wants, it may be more cost effective to go the //M route

You get a lot more than just the extra ponies to. :wink:
Biggest improvement, apart from the wee engine, is the steering.
Of course you will want to mod the ///M eventually to. :evil:

 

[BMWZ4MC]

I’ve insured my modified ///M with Adrian Flux for years (not least of all because they would replace the mods like-for-like, whilst some companies will only replace mods with OEM components). When I asked about adding an ESS stage II supercharger increasing power output by approximately 200bhp, they told me that there would be a £20 administration fee and no change in premium