[doggyollie]

Here are some weights from someone else's thread experience.

STi Steel trunk weighs ~ 27lbs
CF Trunk weighs ~ 11lbs
Spec C trunk weighs ~ ??? Nivek???

[BrewPubeaver]

A.C.P.T. - www.acpt.com - One-piece Carbon Fiber construction - 13.25 lbs

Driveshaft Shop - www.thedriveshaftshop.com - One-piece Aluminum construction - 12.6 lbs.

The factory Driveshaft weighed 24.5 lbs 04 STI, dont know if there is a differance from 04-06

[Interior Flaire]

Gimmick over in his journal removed his front subframe. This is amazing to me. He also said he replaced it with an NRG H-brace. How is this possible? Don't you lose mucho mounting points for all kinds of stuff (i.e. undertray)? This seems like a no-brainer for weight savings but what are the down-sides?

CB

[La Mer]

Originally Posted by fastcb

Gimmick over in his journal removed his front subframe. This is amazing to me. He also said he replaced it with an NRG H-brace. How is this possible? Don't you lose mucho mounting points for all kinds of stuff (i.e. undertray)? This seems like a no-brainer for weight savings but what are the down-sides?

CB

You took the words out of my mouth.

[stiholic anom.]

Originally Posted by doggyollie

Here are some weights from someone else's thread experience.

STi Steel trunk weighs ~ 27lbs
CF Trunk weighs ~ 11lbs
Spec C trunk weighs ~ ??? Nivek???

my cf trunk is 7 lbs, there is quite a bit of variation in the weight of cf parts depending on the manufacturer and construction technique.

[STI5150]

^^^The Spec C Trunk weighs 11 pounds according SO JDM Vender web site.


Here's a few more.

Stock 6 Disk Radio=6 Pounds

Glove Box lid= approx. 3 Pounds.

Helix Ti Cat Back 11.8 Pounds.

[Hando]

Cusco Ti front struts brace -- 736 grams or 1.623 lb. according to my food scale

[jlp7t]

Originally Posted by fastcb

Gimmick over in his journal removed his front subframe. This is amazing to me. He also said he replaced it with an NRG H-brace. How is this possible? Don't you lose mucho mounting points for all kinds of stuff (i.e. undertray)? This seems like a no-brainer for weight savings but what are the down-sides?

CB

You lose the undertray and some frontal crash protection. Oil changes are faster though, especially with a fumoto valve. Also, your engine compartment gets dirtier.

[STI5150]

Originally Posted by jlp7t

You lose the undertray and some frontal crash protection. Oil changes are faster though, especially with a fumoto valve. Also, your engine compartment gets dirtier.

removing the under tray is not good. It helps with aero-dynamics and protects that area-trust me it has been tested and is in thread floating around somewhere. A better subframe option like the Beatrush one is the way to go. You can still use the stock under tray or aftermarket i believe.

[StriderAero]

This is a sweet thread guys!! Keep it going!!!!!

[DuckStu]

Weights in this post were measured using a TIF 9010A digital charging scale, acurate to .5% (1.6 oz at 20 lbs). Reads to 110 lbs in 1/10 oz increments or in lbs out to 3 decimals. Weights were converted to decimals if origionally measured in pounds & ounces.

'04 STI Drivers SEAT W rails....46.480 lbs
'06 STI Drivers seat W rails.....47.54 lbs
'04 STI Passanger seat W rails 41.360 lbs
'06 STI Passanger seat W rails

'04 STI TRUNK LID with wing 41.320 lbs

Stock "U" shaped front SUBFRAME, 24.625 lbs (26.54 with bolts)
M1 subframe from Renick Motorsports, 13.93 lbs, (14.81 lbs with bolts) Saves 11.73 lbs

Small square front center JACKING PLATE 1.225 lbs

Stock '06 STI DOWNPIPE 23.225 lbs (both cats, to cat back) 23.289 W/ doughnut and O2 sensor
APS downpipe (all 3 pieces, but no bolts) 18.495 lbs, bolts aprox .75 lbs = 19.245 (saves 4.044 lbs)
Perrin downpipe

Stock '06 STI AXLE-back EXHAUST 21.160 lbs
Stock '06 STI cat-back exhaust......32.100 lbs
APS cat back (2 pieces, no bolts)....27.930 + bolts .25 = 28.18 (saves 3.92 lbs)

Perrin (somewhat) EQ length HEADER 11.960 lbs. (Saves aprox 12 lbs)
HKS (not so) EQ length header.......... 16.485 lbs
Stock header system minus 1 piece of the heatshield on passanger side (23.955 lbs)

GrimmSpeed UP-PIPE (W studs), 4.585 lbs (nice 1.865" ID @ the header end, 1.755 at the turbo end.)
Agency power Uppipe (W studs & sensor plug) 3.890 lbs (HUGE 2.28" ID)
Crucial Racing Uppipe (W studs) 3.505 lbs (1.62" ID)
TurboXS up-pipe (W studs & sensor plug) 4.300 lbs (1.992" ID at the header end, then quickly necks down to 1.5" in the flex section, then back up to 1.8" ID to the header end)
Perrin up-pipe (W bolts) 3.855 lbs (1.66" ID @ turbo end, 1.635" ID at header end)
Stock STI up-pipe (W studs)......5.980 lbs

STI INTAKE MANNIFOLD (bare), 5.83 lbs

Turn In Concepts aluminum FENDER BRACES (pair) 1.34 lbs
Stock 04 STI fender braces (pair) 1.26 lbs

Stock CRANK PULLEY,.. 5.63 lbs
Perrin lightweight pulley, 1.256 lbs (saves 4.375 lbs)

'07 STI SHORT-BLOCK (no oil PUMP, water pump or oilpan) 86.730 lbs

Stock '04 STI WHEEL, (17x7.5 5x100 10 spoke BBS).. 15.95 lbs
Stock '05 STI wheel, (17x8.0 5x114 10 spoke BBS)..... 19.48 lbs
Stock TIRES, Bridgestone REO70 with 9,000 miles ish.. 25.54 lbs
Pirelli P Zero Nero M&S with 70% tread left 225/45/17,.23.75 lbs
Continental Conti Extreme contact 225/45/17 new,......20.34 lbs
Spare tire with wing-bolt and washer.......................29.99 lbs
Jack and crank handle............................................ .4.99 lbs

Enkei RPF-1 18"x8" 5x100, 45mm offset with Michelin Pilot Sport PS2 235/40/18 tire,..40.795 lbs

(NOTE THAT MY CONTI'S ON 04 RIMS WEIGH NEARLY 9.5 LBS LESS PER WHEEL, THAN STOCK '05 WHEELS AND TIRES)

Stock '04 STI front SWAY BAR with rubber bushings 6.985 lbs
Stock '04 STI rear sway bar with mounts, bushings. 10.36 lbs
Perrin 22mm front sway bar w bushings................. 9.115 lbs
Perrin 22mm rear sway bar (bare)...................... 10.185 lbs
Whiteline 24mm front sway bar (2 hole adjustable) 10.22 lbs
Whiteline 22mm front sway bar (2 hole adjustable)
Whiteline 22mm rear sway bar. (3 hole adjustable) 10.420 lbs
Stock front ENDLINKS (pair w/ nuts) 0.815 lbs

Stock BATTERY 31.40 lbs
Deka lightweight battery model ETX20L (same as larger Braille 2015) 15.39 lbs (saves 16.01 lbs)

Stock FLYWHEEL with 50,000 miles on it 18.931 lbs

CARPET (one piece), 7.140 lbs
FLOORMATS (STI set of 4) 6.625 lbs

U.S. front BUMPER BEAM, 27.75 LBS
JDM front bumper beam,.... 10.535 lbs, (saves 17.215 lbs)

STI TOPHATS pair 4.505 lbs

STI pink STRUTS bare (no springs, pads, or top mounts)
Front 9.960 lbs
Rear. 9.955 lbs

04 WRX strut bare, (no springs, pads or top mounts)
Front 10.10 lbs
Rear... 9.838 lbs

KONI single adjustable inserts
Front 4.76 lbs
Rear. 5.42 lbs

'04 WRX gutted housings, with Koni inserts installed
Ft... 10.825 lbs
Rear 10.61 lbs

PRODRIVE SPRINGS
Front 5.16
Rear. 7.225 lbs
All 4 = 24.77 LBS

Right rear KNUCKLE with trailing arm bushing, but no bearing or hub, 10.55 lbs

Much more to come.
(Thanks to my friends and Jan at Speed industry for letting me go in and weigh stuff.)

[Denali]

RS/WRX Owners Manual = 2 lbs ( not sure if STi is different)
Stock Turbo Heat Shield = 0.4 lbs
'06 STi Rear Diffusor = 1.8 lbs
Front Plastic Splash Shield = 1.8 lbs
Center Console = 5 lbs
Usless Metal Bracket Under Center Storage = 0.8 lbs
2 Sound Deadening Strips In Trunk = 1.4 lbs (there is a third under the spare tire)
Magnaflow 3" Cat = 4 lbs
Turbo XS 4" Downpipe = 6.6 lbs

everything listed is without mounts or skrews/bolts

[slicknick112]

My most recent measurements include the ACPT CF driveshaft (14.5 lbs) and the stock driveshaft (29.7 lbs). I was completely surprised to see that much difference in weight savings. This is from an '06 STi.

[azn_ryder02]

hmm very interesting thread would like to see hood comparisons

[Saabaru STI]

Can anybody confirm the weight of the bumper beams that come with FMIC's?

The weight of the FMIC's would be cool too, so we can compare the two to the stock bumper beam and tmic.