Joined
·
4,630 Posts
Starting as a thought based on a comment in another thread.
What may be removed from the car and/or replaced without compromising safety, comfort, or drivability? Ok, maybe we can reduce comfort a little, but you get the idea. Free weight loss is best. If you are going to post CF hood and trunk, please have the before and after weights. We all know a CF trunk or hood may shed weight (yes...may...and may not). We need readily available parts for R&R or actual parts folks have removed for weight reduction.
Open to all suggestions and I will update this first post with all relative data. Please post accurate information. Pics are great too. I will hyperlink to this post as needed.
Wheels:
Factory 19x9 ~ 30#
Factory 19x9.5 ~31#
VF Forged 19x9 20#
Nismo 19x9.5 +40 20# (2015+)
Gonna stop here because there are tons of wheels out there that are lighter than factory.
Tires:
Runflat Dunlop 245/40/19 ~30#
Runflat Dunlop 265/35/19 ~ 31#
Rotors:
Factory Sport F/R ~ 30#/20# (29lb 5 oz for front)
Z1 2 piece F/R ~ 20#/15# (19lb 7 oz for front)
DBA 2 piece F ~ 24#
Non Sport F/R ~ ??#/??#
Driveshaft:
Factory RWD ~ ??#
AMS CF RWD ` ??#
Factory AWD ~ ??#
AMS CF AWD ~ 21.5#
AMS AL AWD ~ 23.05#
Different numbers from forum member:
* OEM Driveshaft AWD 23.3lbs (v)
- AMS aluminum Driveshaft AWD 23.8lbs (v) (r)
- AMS carbon Fiber Driveshaft AWD 22.3lbs (v) (r)
Exhaust:
Factory
Y-pipe ~ 9.1#
Mid-pipe ~17.2#
Axle-Back ~ 28.7#
Complete factory cat-back ~ 55# (no hardware)
Lower Down Pipes (plural) ~ 18.6#
Complete DP ~ ??#
GTHaus GT catback
Y-pipe ~ 9.9#
Mid-pipe ~ 15.8#
Axle-Back (including tips) ~ 25.7#
Complete GTHaus cat-back ~ 51.4# (no hardware)
Battery:
Factory ~ 36.9#
Braille ~10.2#
i34CX - Intensity Carbon Group 34
Undertray:
Factory Plastic ~ 2.6#
TBW Aluminum ~ 6.6#
Trunk Area:
- Trunk mat/floor board ~ 3lb 15 oz
- Tool tray and lug wrench ~ 1lb 10.4 oz
Lug Nuts:
- OEM 20 ~ 3lb 8.8 oz
GSP lightweight (20) ~ 1lb 5.2oz
Free bits:
Posted by Potatohead posts 61/62
- Carpeted OEM floor mats (4): 4lb 3.2oz
- Owner's manual and related booklets (assuming you normally keep it in your glove box): 2lb 3.6oz
- All 5 headrests: 7lb 0.0oz
- If you want to leave at least your driver side headrest in place (probably recommended): + 1lb 14.0oz
Thus, 4 headrests: 5lb 2.0oz
- Also, worth noting, gasoline weighs about 6lb/gal. That can really add up when comparing a full tank of gas to, say 1/8 or 1/4. I think our tank holds 20 gal? So 1/4 tank = 30lb, full tank = 120lb
- Also keep in mind water weighs a little over 8lb/gal. I don't know the capacity of our windshield washer tanks but if it were, say, a gallon, you could save ~8lb by running with the fluid on the low end.
- Rear passenger side tow hook. 2lb 9.8oz. (Advising against this, but this is ptatohed posting)
What may be removed from the car and/or replaced without compromising safety, comfort, or drivability? Ok, maybe we can reduce comfort a little, but you get the idea. Free weight loss is best. If you are going to post CF hood and trunk, please have the before and after weights. We all know a CF trunk or hood may shed weight (yes...may...and may not). We need readily available parts for R&R or actual parts folks have removed for weight reduction.
Open to all suggestions and I will update this first post with all relative data. Please post accurate information. Pics are great too. I will hyperlink to this post as needed.
Wheels:
Factory 19x9 ~ 30#
Factory 19x9.5 ~31#
VF Forged 19x9 20#
Nismo 19x9.5 +40 20# (2015+)
Gonna stop here because there are tons of wheels out there that are lighter than factory.
Tires:
Runflat Dunlop 245/40/19 ~30#
Runflat Dunlop 265/35/19 ~ 31#
Rotors:
Factory Sport F/R ~ 30#/20# (29lb 5 oz for front)
Z1 2 piece F/R ~ 20#/15# (19lb 7 oz for front)
DBA 2 piece F ~ 24#
Non Sport F/R ~ ??#/??#
Driveshaft:
Factory RWD ~ ??#
AMS CF RWD ` ??#
Factory AWD ~ ??#
AMS CF AWD ~ 21.5#
AMS AL AWD ~ 23.05#
Different numbers from forum member:
* OEM Driveshaft AWD 23.3lbs (v)
- AMS aluminum Driveshaft AWD 23.8lbs (v) (r)
- AMS carbon Fiber Driveshaft AWD 22.3lbs (v) (r)
Exhaust:
Factory
Y-pipe ~ 9.1#
Mid-pipe ~17.2#
Axle-Back ~ 28.7#
Complete factory cat-back ~ 55# (no hardware)
Lower Down Pipes (plural) ~ 18.6#
Complete DP ~ ??#
GTHaus GT catback
Y-pipe ~ 9.9#
Mid-pipe ~ 15.8#
Axle-Back (including tips) ~ 25.7#
Complete GTHaus cat-back ~ 51.4# (no hardware)
Battery:
Factory ~ 36.9#
Braille ~10.2#
i34CX - Intensity Carbon Group 34
Undertray:
Factory Plastic ~ 2.6#
TBW Aluminum ~ 6.6#
Trunk Area:
- Trunk mat/floor board ~ 3lb 15 oz
- Tool tray and lug wrench ~ 1lb 10.4 oz
Lug Nuts:
- OEM 20 ~ 3lb 8.8 oz
GSP lightweight (20) ~ 1lb 5.2oz
Free bits:
Posted by Potatohead posts 61/62
- Carpeted OEM floor mats (4): 4lb 3.2oz
- Owner's manual and related booklets (assuming you normally keep it in your glove box): 2lb 3.6oz
- All 5 headrests: 7lb 0.0oz
- If you want to leave at least your driver side headrest in place (probably recommended): + 1lb 14.0oz
Thus, 4 headrests: 5lb 2.0oz
- Also, worth noting, gasoline weighs about 6lb/gal. That can really add up when comparing a full tank of gas to, say 1/8 or 1/4. I think our tank holds 20 gal? So 1/4 tank = 30lb, full tank = 120lb
- Also keep in mind water weighs a little over 8lb/gal. I don't know the capacity of our windshield washer tanks but if it were, say, a gallon, you could save ~8lb by running with the fluid on the low end.
- Rear passenger side tow hook. 2lb 9.8oz. (Advising against this, but this is ptatohed posting)
I am looking to reduce weight, but haven't done anything yet obviously. I heard the OEM Run Flats aren't the best for performance, even all-season. Anyway, listed weights of a popular all-season tire to save about 20# overall:
