e92 M3...has anyone increased their bhp yet?

Palmnuts · 11-12-2008, 04:56 PM

I've covered nearly 15k miles in my M3 and have decided its now time for some upgrading! It's booked in with Birds in early December for a full Hartge exhaust, including 'racing' cat I believe. It's then being tickled with a remap!

The Hartge system is a whole lotta wonga but after the exhaust and the remap it should have in excess of 460bhp.

Or will it.......???

I'm having a before and after rolling road run to see exactly what the difference is but I want to know if theres anyone who has had anything similar done on their M3?

biscuits · 11-13-2008, 03:58 AM

I've avoided temptation for a remap or exhaust so far. Only had the car a few months and done 3k miles, so still enjoying it.

Will be great to hear your thoughts on a quality upgrade, with dyno figures to back up any performance increases achieved.

I think 460bhp is achievable. A stage 3 uprade (full exhaust, cats and remap) saw an increase from 340bhp to 380bhp on an Audi S4 4.2 V8, so 420bhp to 460bhp should be possible. 10% increase for a lot of money though!

Probably get much more gain in the midrange than peak power, which is where most of the Emmissions tinkering is done.

Keep up posted how you get on... will be great to hear what it sounds like with a full system.

Cafe.Racer · 11-13-2008, 04:05 AM

Quote:

Originally Posted by biscuits

10% increase for a lot of money though!

That's normally aspirated for you... Still, 40 brake is pretty good.

I bet it'll be worth it for the sound alone...

booforty · 11-13-2008, 05:11 AM

I'm happy with the power at the moment. Can still scare myself at times! Would like to upgrade the exhaust in the future though

squeezebm · 11-13-2008, 07:25 AM

If it sounded like when you first start it up ALL THE TIME

power is enough fo know tho'

Palmnuts · 11-14-2008, 03:09 PM

Funnily enough I've gone for full exhaust system to gain the extra power from the extremely expensive cats (!!) but also to improve the looks; I think the standard exhausts look a bit puny! I'm actually hoping it isn't too loud and have gone for the TUV approved version to make sure it isn't!

I'll update when the job has been done!

marlie · 11-14-2008, 08:14 PM

What exhaust you gone for?

Hoops · 11-15-2008, 02:18 AM

Out of interest Palmball - what is the cost???

dxb335d · 11-15-2008, 04:54 AM

For a full exhaust and re-map a 44bhp increase does sound a little too much. Unless the stock zorst is majorly restrictive.

Get her on the R/R before and after. Look forward to seeing some results.

Palmnuts · 11-16-2008, 04:25 PM

The cost....over £5k!!

Massive money by any standards but the remap part is only £700.

The Hartge exhaust is at least twice the price of other systems so I hope the quality, finish, sound and fit are perfect! Interstingly, it's the only one which seems to follow the OEM design of having a single rear silencer for all 4 exhast tips - unlike other makes which have 2 seperate boxes and a gap in the middle. I thought this was quite important given that the rear silencer apparently plays a part in the aerodynamic design of the car.

Anyway, whichever way I look at it or try and justify it, the cost is extreme (and probably sheer madness!!) to say the least so I just hope it's worth it!

Palmnuts · 11-16-2008, 04:25 PM

Hartge exhaust

booforty · 11-16-2008, 04:30 PM

Look forward to seeing (and hearing) the results

biscuits · 11-16-2008, 04:55 PM

At the Evolve charity dyno day yesterday, I found out I had a good un' !

The guys recon my car has had some sort of remap done as part of the "press preparation" and said it would be pointless to get it remapped myself. All the E92 M3's they've had on their dyno have been putting out 395-411bhp... and mine yesterday put down 426bhp

I'm very happy now... but think I'll still get the exhaust done.

Evolve guys were top and more than happy for them to carry out any work I want done.

Looking forward to seeing/hearing your Hartge system Palmeball . . .

XKaLiBaR · 11-16-2008, 04:59 PM

You wont get 40bhp mate. Id recommend going to another dyno place, before and after, just to make sure. Have Hartge quoted you on this 40bhp increase?

dxb335d · 11-16-2008, 05:00 PM

Quote:

Originally Posted by XKaLiBaR

You wont get 40bhp mate. Id recommend going to another dyno place, before and after, just to make sure. Have Hartge quoted you on this 40bhp increase?

Im with my good buddy baris on this one.

Hoops · 11-17-2008, 10:44 AM

Carlos - dont side with the DRAGON for he is our sworn enemy - we must slay him at the Battle of Buckmore!!!

biscuits · 11-17-2008, 12:02 PM

Quote:

Originally Posted by bmwbailey

Carlos - dont side with the DRAGON for he is our sworn enemy - we must slay him at the Battle of Buckmore!!!

Any room for a Buckmore local ??? I pass it everyday on the way into work. This time of year is pretty grotty though.

Hoops · 11-17-2008, 12:15 PM

Biccies - as long as you dont side with the RED DRAGON then you are more than welcome. Shame i missed you on saturday - think you left just before i got there - your M3 sounds like a good un!!

dxb335d · 11-17-2008, 12:23 PM

Quote:

Originally Posted by biscuits

Any room for a Buckmore local ??? I pass it everyday on the way into work. This time of year is pretty grotty though.

Prob doing it at rye house in herts mate, your very welcome.

piston-pirates · 11-17-2008, 01:59 PM

Have you looked into the Racing Dynamics products?

A friend of mine who works for BMW Car Mag said their doing an article on their RS35 Biturbo and that they are opening up an RD branch in the UK???

Definitely worth investigating......RACING DYNAMICS is the best!

I have their Quads on my 335i and LOVE them.....

Sales@Evolve · 11-17-2008, 02:07 PM

ECU Remap gives a maximum of around 20hp. Most of the tuners have come to realise this now.

Supersprint exhausts with metal catalytic converters have already been dynoed at 20hp. Hartge and Supersprint quote this with Supersprint providing graphs. We have tested Supersprint stuff and they nearly always give the quoted power gains they say.

That doesn't mean you'll get 40hp total though. Some of the US guys have had this though so it may well be possible. We think it is more than possible. Time will tell.

We remapped an E93 M3 today which had a Remus exhaust with metal cats. Sounded brilliant. Really quiet under cruising with insane noise under load. Well designed and thought out. Beautiful fit and finish aswell which is normal from Remus.

One of the best noises however comes from Tubi. We have supplied these and the owners do nothing but go on about how good they sound.

piston-pirates · 11-17-2008, 02:17 PM

IMO the Remus is definitely too loud.....all depends on personal preference though I suppose.

Either your into a nice tone like the RD.....or the sound of a Remus where you can be heard by the Police 2 Miles away if your opening the S65 up....

The Remus does sound like an Animal but its just too much attention for the same gains.....

11-12-2008, 04:56 PM	#1
Palmnuts Lieutenant Colonel 183 Rep 1,960 Posts Drives: Huracan Evo & Panamera Turbo S Join Date: Nov 2008 Location: Leicestershire, UK iTrader: (0)	e92 M3...has anyone increased their bhp yet? I've covered nearly 15k miles in my M3 and have decided its now time for some upgrading! It's booked in with Birds in early December for a full Hartge exhaust, including 'racing' cat I believe. It's then being tickled with a remap! The Hartge system is a whole lotta wonga but after the exhaust and the remap it should have in excess of 460bhp. Or will it.......??? I'm having a before and after rolling road run to see exactly what the difference is but I want to know if theres anyone who has had anything similar done on their M3?
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11-13-2008, 03:58 AM	#2
biscuits Dimmer than a dim thing 83 Rep 1,291 Posts Drives: M4 GTS, EQC, X5 40d, simrig Join Date: Oct 2008 Location: UK iTrader: (0) Garage List 2016 BMW X5 (F15) 4 ... [0.00] 2016 BMW M4 GTS [10.00]	I've avoided temptation for a remap or exhaust so far. Only had the car a few months and done 3k miles, so still enjoying it. Will be great to hear your thoughts on a quality upgrade, with dyno figures to back up any performance increases achieved. I think 460bhp is achievable. A stage 3 uprade (full exhaust, cats and remap) saw an increase from 340bhp to 380bhp on an Audi S4 4.2 V8, so 420bhp to 460bhp should be possible. 10% increase for a lot of money though! Probably get much more gain in the midrange than peak power, which is where most of the Emmissions tinkering is done. Keep up posted how you get on... will be great to hear what it sounds like with a full system.
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11-13-2008, 05:11 AM	#4
booforty Major General 366 Rep 8,809 Posts Drives: E92 M3 Join Date: Mar 2005 Location: London, UK iTrader: (0) Garage List 2008 E92 M3 [0.00]	I'm happy with the power at the moment. Can still scare myself at times! Would like to upgrade the exhaust in the future though
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11-13-2008, 07:25 AM	#5
squeezebm Colonel 43 Rep 2,652 Posts Drives: Audi Join Date: Mar 2007 Location: Notts iTrader: (0)	If it sounded like when you first start it up ALL THE TIME power is enough fo know tho'
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11-14-2008, 03:09 PM	#6
Palmnuts Lieutenant Colonel 183 Rep 1,960 Posts Drives: Huracan Evo & Panamera Turbo S Join Date: Nov 2008 Location: Leicestershire, UK iTrader: (0)	Funnily enough I've gone for full exhaust system to gain the extra power from the extremely expensive cats (!!) but also to improve the looks; I think the standard exhausts look a bit puny! I'm actually hoping it isn't too loud and have gone for the TUV approved version to make sure it isn't! I'll update when the job has been done!
	Appreciate 0 Quote

11-14-2008, 08:14 PM	#7
marlie Captain 341 Rep 807 Posts Drives: G21 M340i Join Date: Oct 2007 Location: UK iTrader: (1)	What exhaust you gone for? __________________
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11-15-2008, 02:18 AM	#8
Hoops Brigadier General 292 Rep 3,658 Posts Drives: E70 X5 xDrive35d M Sport Join Date: May 2008 Location: Chigwell, Essex iTrader: (5) Garage List 2011 BMW S1000RR Sport [10.00] 2009 E92 M3 DCT [0.00] 2010 Range Rover Sport [0.00] 54 Plate E46 M3 CSL [0.00]	Out of interest Palmball - what is the cost??? __________________ E70 X5 xDrive35d M Sport - Carbon Black - Panoramic Roof - 21" BMW Alloys - BMW Performance Gloss Black Grilles - LCi Rear Light Upgrade - BMW 4.8i Exhaust Trims
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11-15-2008, 04:54 AM	#9
dxb335d The Tarmac Terrorist 1047 Rep 29,344 Posts Drives: 997.2 GT3 Join Date: Mar 2007 Location: ''Fandango Towers'' iTrader: (3) Garage List 2010 Porsche 997.2 GT3 [9.50] 2003 BMW E46 M3 [6.00] 2007 BMW E92 335D [5.50]	For a full exhaust and re-map a 44bhp increase does sound a little too much. Unless the stock zorst is majorly restrictive. Get her on the R/R before and after. Look forward to seeing some results. __________________ 997.2 GT3
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11-16-2008, 04:25 PM	#10
Palmnuts Lieutenant Colonel 183 Rep 1,960 Posts Drives: Huracan Evo & Panamera Turbo S Join Date: Nov 2008 Location: Leicestershire, UK iTrader: (0)	The cost....over £5k!! Massive money by any standards but the remap part is only £700. The Hartge exhaust is at least twice the price of other systems so I hope the quality, finish, sound and fit are perfect! Interstingly, it's the only one which seems to follow the OEM design of having a single rear silencer for all 4 exhast tips - unlike other makes which have 2 seperate boxes and a gap in the middle. I thought this was quite important given that the rear silencer apparently plays a part in the aerodynamic design of the car. Anyway, whichever way I look at it or try and justify it, the cost is extreme (and probably sheer madness!!) to say the least so I just hope it's worth it!
	Appreciate 0 Quote

11-16-2008, 04:30 PM	#12
booforty Major General 366 Rep 8,809 Posts Drives: E92 M3 Join Date: Mar 2005 Location: London, UK iTrader: (0) Garage List 2008 E92 M3 [0.00]	Look forward to seeing (and hearing) the results
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11-16-2008, 04:55 PM	#13
biscuits Dimmer than a dim thing 83 Rep 1,291 Posts Drives: M4 GTS, EQC, X5 40d, simrig Join Date: Oct 2008 Location: UK iTrader: (0) Garage List 2016 BMW X5 (F15) 4 ... [0.00] 2016 BMW M4 GTS [10.00]	At the Evolve charity dyno day yesterday, I found out I had a good un' ! The guys recon my car has had some sort of remap done as part of the "press preparation" and said it would be pointless to get it remapped myself. All the E92 M3's they've had on their dyno have been putting out 395-411bhp... and mine yesterday put down 426bhp I'm very happy now... but think I'll still get the exhaust done. Evolve guys were top and more than happy for them to carry out any work I want done. Looking forward to seeing/hearing your Hartge system Palmeball . . .
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11-16-2008, 04:59 PM	#14
XKaLiBaR First Lieutenant 21 Rep 384 Posts Drives: M3 Join Date: Jul 2008 Location: London iTrader: (0)	You wont get 40bhp mate. Id recommend going to another dyno place, before and after, just to make sure. Have Hartge quoted you on this 40bhp increase? __________________ Mods ListAP Racing BBKs, Bilstein PSS10 , Rogue Engineering Pulleys, RTM and Transmission Mounts, Eibach ARBs, Supersprint LightWeight Race Muffler, Miltek 100 Cell Cats, Recaro Pole Positions, Aluminium Brushed Trim, Csl Steering wheel, Imola Red Arm Rest, CSL Diffuser, 10mm Eibach Spacers, Depo Indicators, Custom blacked out front grills, Carbon Fibre Side Grills, Custom UUC ClutchStop, CSL OEM Bootlid, V-CSL Bumper,
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11-17-2008, 10:44 AM	#16
Hoops Brigadier General 292 Rep 3,658 Posts Drives: E70 X5 xDrive35d M Sport Join Date: May 2008 Location: Chigwell, Essex iTrader: (5) Garage List 2011 BMW S1000RR Sport [10.00] 2009 E92 M3 DCT [0.00] 2010 Range Rover Sport [0.00] 54 Plate E46 M3 CSL [0.00]	Carlos - dont side with the DRAGON for he is our sworn enemy - we must slay him at the Battle of Buckmore!!! __________________ E70 X5 xDrive35d M Sport - Carbon Black - Panoramic Roof - 21" BMW Alloys - BMW Performance Gloss Black Grilles - LCi Rear Light Upgrade - BMW 4.8i Exhaust Trims
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11-17-2008, 12:15 PM	#18
Hoops Brigadier General 292 Rep 3,658 Posts Drives: E70 X5 xDrive35d M Sport Join Date: May 2008 Location: Chigwell, Essex iTrader: (5) Garage List 2011 BMW S1000RR Sport [10.00] 2009 E92 M3 DCT [0.00] 2010 Range Rover Sport [0.00] 54 Plate E46 M3 CSL [0.00]	Biccies - as long as you dont side with the RED DRAGON then you are more than welcome. Shame i missed you on saturday - think you left just before i got there - your M3 sounds like a good un!! __________________ E70 X5 xDrive35d M Sport - Carbon Black - Panoramic Roof - 21" BMW Alloys - BMW Performance Gloss Black Grilles - LCi Rear Light Upgrade - BMW 4.8i Exhaust Trims
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11-17-2008, 01:59 PM	#20
piston-pirates Enlisted Member 1 Rep 35 Posts Drives: BMW Join Date: Nov 2008 Location: UK iTrader: (0)	Have you looked into the Racing Dynamics products? A friend of mine who works for BMW Car Mag said their doing an article on their RS35 Biturbo and that they are opening up an RD branch in the UK??? Definitely worth investigating......RACING DYNAMICS is the best! I have their Quads on my 335i and LOVE them.....
	Appreciate 0 Quote

11-17-2008, 02:07 PM	#21
Sales@Evolve Major 97 Rep 1,063 Posts Drives: Slow Join Date: Feb 2008 Location: Luton, Bedfordshire iTrader: (0)	ECU Remap gives a maximum of around 20hp. Most of the tuners have come to realise this now. Supersprint exhausts with metal catalytic converters have already been dynoed at 20hp. Hartge and Supersprint quote this with Supersprint providing graphs. We have tested Supersprint stuff and they nearly always give the quoted power gains they say. That doesn't mean you'll get 40hp total though. Some of the US guys have had this though so it may well be possible. We think it is more than possible. Time will tell. We remapped an E93 M3 today which had a Remus exhaust with metal cats. Sounded brilliant. Really quiet under cruising with insane noise under load. Well designed and thought out. Beautiful fit and finish aswell which is normal from Remus. One of the best noises however comes from Tubi. We have supplied these and the owners do nothing but go on about how good they sound.
	Appreciate 0 Quote

11-17-2008, 02:17 PM	#22
piston-pirates Enlisted Member 1 Rep 35 Posts Drives: BMW Join Date: Nov 2008 Location: UK iTrader: (0)	IMO the Remus is definitely too loud.....all depends on personal preference though I suppose. Either your into a nice tone like the RD.....or the sound of a Remus where you can be heard by the Police 2 Miles away if your opening the S65 up.... The Remus does sound like an Animal but its just too much attention for the same gains.....
	Appreciate 0 Quote