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      01-06-2014, 11:43 AM   #23
325rider
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NO option e90 m3 with aftermarket mufflers and test pipes checking in … Glad I went this route, I am certainly sub 3500lbs with 1/4 tank. Good news to me :thump:

However, a 3% decrease in weight is negligible in real world driving. Maybe on a track lap times could shave tenths but whatevers, its the little things in life sometimes
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      01-06-2014, 02:49 PM   #24
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Quote:
Originally Posted by surlynkid View Post
which exhaust did you install? how loud is it?
The Fabspeed Maxflo (two post-cat pipes with a small resonator on each pipe)....it's fairly loud when you are on the throttle but a nice kind of loud. When I'm cruising, the cabin db level is around 95db and when I'm on the gas it's 100-105db.
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      01-06-2014, 04:25 PM   #25
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Quote:
Originally Posted by USCTrojanMan29 View Post
The Fabspeed Maxflo (two post-cat pipes with a small resonator on each pipe)....it's fairly loud when you are on the throttle but a nice kind of loud. When I'm cruising, the cabin db level is around 95db and when I'm on the gas it's 100-105db.
95db inside the cabin? that is an OSHA hearing protection zone.

the maxflo keeps the side mufflers. did you also get the fabspeed side muffler delete kit with with the maxflow muffler kit? i would love to see a video with sounds.
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Last edited by surlynkid; 01-06-2014 at 04:30 PM.
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      01-06-2014, 04:34 PM   #26
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Quote:
Originally Posted by surlynkid View Post
95db inside the cabin? that is an OSHA hearing protection zone.
I can still have a conversation and listen to the radio (thanks to the sound plus option).

If you want a bit quieter then the M&M exhaust with the center muffler is a good choice (although it'll be a little heavier). I think getting rid of the side mufflers will help a lot both in terms of weight and not heating up the rear fenders/tires.
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      01-06-2014, 04:38 PM   #27
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Quote:
Originally Posted by surlynkid View Post
95db inside the cabin? that is an OSHA hearing protection zone.

the maxflo keeps the side mufflers. did you also get the fabspeed side muffler delete kit with with the maxflow muffler kit? i would love to see a video with sounds.
Here's what it looks like (then there's a 2-into-1 pipe that connects after the cats). It does eliminate the side mufflers. Those fockers are heavy as help...like 28lbs each. I posted up a video clips with sound next weekend so you can hear how it sounds. I get a lot of compliments on it at the track.

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      01-07-2014, 08:35 PM   #28
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My loaded (no sunroof) E90 with track wheels/tires was 3700 and change with a full tank and no passengers. Really really surprised to see 3500.
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      01-07-2014, 09:29 PM   #29
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Quote:
Originally Posted by jml View Post
My loaded (no sunroof) E90 with track wheels/tires was 3700 and change with a full tank and no passengers. Really really surprised to see 3500.
Same here.

Mine came in at 3688lb with full tank and no driver (E92, DCT, Nav, Premium sound, leather heated and full electric seats with adjustable lumbar and side bolsters, CFRP roof, folding rear seat, M-performance exhaust, 18"x10" track wheels).
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      01-07-2014, 10:06 PM   #30
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Just to show...

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      01-08-2014, 07:58 PM   #31
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Quote:
Originally Posted by Mr Sparkle View Post
a full 16.6 gallon tank of gas can weigh about 99 lbs in the gas alone. Gas weighs about 6 lbs per gallon. So you can subtract about 74 lbs worth of gas weight in your car to get comparable to OP's weight at a 1/4 tank.

Then again he also has different wheels and tires, which also factor in the weight differences. All in all, it's really hard to compare precisely b/c of his (and your) equipment, but you can estimate it with +/- 20 lbs differences in equipment weight.
Exactly so my e90 with some weight reduction and lower fuel is right in the ballpark at 3588. Think I took 80ish pounds out with the rear seats and such.
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      01-08-2014, 07:59 PM   #32
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Quote:
Originally Posted by Mr Sparkle View Post
so you took the hooker our of your trunk before you weighed in, I presume?
I assumed truline handled that for me.
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      01-08-2014, 08:36 PM   #33
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Quote:
Originally Posted by Mr Sparkle View Post
so you took the hooker our of your trunk before you weighed in, I presume?
The M3 guys can fit a full sized hooker in the trunk, I don't think I can fit a midget hooker in my frunk.
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      01-08-2014, 11:58 PM   #34
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Quote:
Originally Posted by Mr Sparkle View Post
wow, I'm not sure if 80lbs seems like a lot for a back seat, or not. Was it just the seat back or the seat itself too?
Rear seat backs, seat bottom, trunk liner, some plastic. Its been couple years its on here somewhere, search bro!
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      01-09-2014, 12:51 PM   #35
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Why don't one of you strip out the interior and do a full build? Then we can find out how low the e9x M3 will go! Just as a reference my e46 M3 (which I consider to be over weight by a good 100 -150 lbs.) is about 2875 lbs. no driver, no fuel but add for fire suppression and cool shirt (cooler full of water & ice)
Just think how fast your car would be if you dropped 400-500lbs.
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      01-09-2014, 06:55 PM   #36
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My full race build E92 is around 2840 (maybe a bit less) no fuel, driver, or ballast.
Only carbon body piece right now is the trunk. Lexan rear and 1/4 windows.
It's pretty well gutted and I thinned out the wiring harness a lot (about 50lbs of unneeded wiring/modules). I could lose more (carbon doors/hood, more thinning of wiring/modules, and still have some heavy factory sound deadening underneath).
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      01-10-2014, 09:56 AM   #37
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Quote:
Originally Posted by J Smith View Post
My full race build E92 is around 2840 (maybe a bit less) no fuel, driver, or ballast.
Only carbon body piece right now is the trunk. Lexan rear and 1/4 windows.
It's pretty well gutted and I thinned out the wiring harness a lot (about 50lbs of unneeded wiring/modules). I could lose more (carbon doors/hood, more thinning of wiring/modules, and still have some heavy factory sound deadening underneath).
Wow. This is inspiring. With all the negative talk that our cars are too heavy and are not good track cars due to this.

I've done major weight savings as well ie rear gutted etc, I look forward to getting my car weighed.
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      01-10-2014, 09:18 PM   #38
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Quote:
Originally Posted by J Smith View Post
My full race build E92 is around 2840 (maybe a bit less) no fuel, driver, or ballast.
Only carbon body piece right now is the trunk. Lexan rear and 1/4 windows.
It's pretty well gutted and I thinned out the wiring harness a lot (about 50lbs of unneeded wiring/modules). I could lose more (carbon doors/hood, more thinning of wiring/modules, and still have some heavy factory sound deadening underneath).
Is that with a cage? Either way, 2840 is pretty damned light so it sounds like your car is going to be insanely fast! An E9X M3 is pretty damned fast in stock trim.
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      01-10-2014, 09:26 PM   #39
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Quote:
Originally Posted by J Smith View Post
My full race build E92 is around 2840 (maybe a bit less) no fuel, driver, or ballast.
Only carbon body piece right now is the trunk. Lexan rear and 1/4 windows.
It's pretty well gutted and I thinned out the wiring harness a lot (about 50lbs of unneeded wiring/modules). I could lose more (carbon doors/hood, more thinning of wiring/modules, and still have some heavy factory sound deadening underneath).
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      01-11-2014, 10:27 AM   #40
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Quote:
Originally Posted by DD GT3 RD View Post
Just to show...

How much fuel and driver weight?

I'm surprised the nose is so heavy.
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      01-11-2014, 11:31 AM   #41
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Quote:
Originally Posted by Billj747 View Post
How much fuel and driver weight?

I'm surprised the nose is so heavy.
I weighed around 176-178
Car had half tank of gas

I thought it was closer to 50/50 as well...
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      01-12-2014, 02:55 PM   #42
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09 E90 M3
6MT, Sunroof, iDrive, Cold Weather, Convenience, pretty much loaded.
1/2 tank of fuel.
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50.35% F / 49.65% R




With me in the driver's seat:

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      01-12-2014, 03:17 PM   #43
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3660 is exactly what mine weighed before I pulled out some weight.
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      01-13-2014, 03:28 PM   #44
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Quote:
Originally Posted by bigjae1976 View Post
Is that with a cage? Either way, 2840 is pretty damned light so it sounds like your car is going to be insanely fast! An E9X M3 is pretty damned fast in stock trim.
Yes, 2840 is with a full cage (also includes the fire suppression system and diff cooler setup).
I run about with anywhere from 70-120lbs of ballast added back in, mostly to try to get back closer to 50/50 front/rear weight distribution for handling purposes. As everyone knows, much of the weight when stripping comes off the rear axle.
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