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Author BMW m3 evo + £250 air filter =
Dave A
USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
User status: Offline
3rd Sep 07 at 21:07   View User's Profile U2U Member Reply With Quote
a big loss in bhp and torque


did a before and after test on the dyno, sounded better but gave big losses (10-15 bhp and up to 18 ft/lb torque) right accross the rev range.

Goes to show that some engines shouldnt be messed with. BMW airbox system is the best ever made on a production car that I have seen.

(P.s I didnt supply the filter, just fitted it and tested it)
BarnshaW
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Registered: 25th Oct 06
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3rd Sep 07 at 21:08   View User's Profile U2U Member Reply With Quote
does this go for all bmw's?
Dave A
USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
User status: Offline
3rd Sep 07 at 21:09   View User's Profile U2U Member Reply With Quote
nearly all 1990> bmw's have the good airbox design.
deano87
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Registered: 21st Oct 06
Location: Bedfordshire Drives: Ford Fiesta
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3rd Sep 07 at 21:10   View User's Profile U2U Member Reply With Quote
They are the Ultimate Driving Machine
RS6
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Registered: 5th Nov 03
Location: with MJ
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3rd Sep 07 at 21:39   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by deano87
They are the Ultimate Driving Machine


FLAMO
Lee Wilson
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Registered: 20th Feb 06
Location: Fareham, Hants Drives: XE Corsa
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3rd Sep 07 at 21:46   View User's Profile U2U Member Reply With Quote
Thats a huge decrease,

Goes to show all them millions of pounds/euros (whatever) they spend on research actually works.

Name and shame the make of the air filter?
Alex16v
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Registered: 30th Jun 06
Location: Chester Drives: Civic ep3 final edition
User status: Offline
3rd Sep 07 at 21:49   View User's Profile U2U Member Reply With Quote
So if i fit a standard BMW m3 evo air filter to my corsa GSi i could get an increase of 10-15 bhp and up to 18 ft/lb torque right accross the rev range??

haha

Good to know though, BMW must try and get the best from thier engineering.
Olsrey
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Registered: 13th Jan 07
Location: Bradford   Drives: LET Vectra B
User status: Offline
3rd Sep 07 at 22:52   View User's Profile U2U Member Reply With Quote
Have to agree on this, tried a proper bmc enclosed filter and my 525 felt slower and had a flat spot where it normal is just starting to pick up.
Steve X16XE
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Registered: 31st Dec 06
Location: Barnsley, South Yorkshire
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3rd Sep 07 at 23:39   View User's Profile U2U Member Reply With Quote
one of these bad boys?



[Edited on 03-09-2007 by Steve X16XE]
Ian_GTI
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Registered: 26th Mar 07
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3rd Sep 07 at 23:44   View User's Profile U2U Member Reply With Quote
cant beat bm!
Jamie
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Registered: 1st Apr 02
Location: Aberdeen
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4th Sep 07 at 07:24   View User's Profile U2U Member Reply With Quote
Do you mean induction kit or just replacement filter?
JinThaMC
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Registered: 5th Aug 07
Location: P1 is 4db louder
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4th Sep 07 at 08:40   View User's Profile U2U Member Reply With Quote
replacement filter for £250?
CORSA NUT
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Registered: 3rd Aug 01
Location: Wirral
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4th Sep 07 at 08:42   View User's Profile U2U Member Reply With Quote
I had a carbon one on my 323i coupe and boy did it make a difference! And it sounded SO good



[Edited on 04-09-2007 by CORSA NUT]
Stu
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Registered: 3rd May 00
Location: Madchester UK Drives: 2014 BMW M135i
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4th Sep 07 at 08:55   View User's Profile U2U Member Reply With Quote
The Gruppe M stuff for the Beemers is awesome!!! Think an induction kit was about £1250 when I priced one for my M3 Evo tho!
CORSA NUT
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Registered: 3rd Aug 01
Location: Wirral
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4th Sep 07 at 09:07   View User's Profile U2U Member Reply With Quote
Yes they expensive
Doug
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Registered: 8th Oct 03
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4th Sep 07 at 09:12   View User's Profile U2U Member Reply With Quote
What make of induction kit?

The Gruppe M stuff and their replicas work very very well as do the Dave.F kits

The K&N Crap dosnt work well as it has no proper heat sheilding!
NovaGTE2
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Registered: 26th Sep 06
Location: Peasedown St John, Bristol Avon
User status: Offline
4th Sep 07 at 11:33   View User's Profile U2U Member Reply With Quote
Think i'll stick with the 321BHP and save myself £250 then
Doug
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Registered: 8th Oct 03
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4th Sep 07 at 19:33   View User's Profile U2U Member Reply With Quote
bump to find out what filter
Welsh Dan
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Registered: 23rd Mar 00
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4th Sep 07 at 20:05   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by NovaGTE2
Think i'll stick with the 321BHP and save myself £250 then


I thought that although BMW claimed thats what they were, they actually rollered at far less than that?
BarnshaW
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Registered: 25th Oct 06
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4th Sep 07 at 20:06   View User's Profile U2U Member Reply With Quote
either way they are still immense
Doug
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Registered: 8th Oct 03
User status: Offline
4th Sep 07 at 20:19   View User's Profile U2U Member Reply With Quote
Yeah I am yet to see one that has actually produced 321bhp in standard form.

They are all around the 300/310 mark.

Still fast though!
Olsrey
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Registered: 13th Jan 07
Location: Bradford   Drives: LET Vectra B
User status: Offline
4th Sep 07 at 20:24   View User's Profile U2U Member Reply With Quote
Even the automatics are fast

 
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