03-04 Tiburon GT (with infinity system and sun roof)
curb weight 3100 lbs

05-06 Tiburon GT
curb weight 2969 lbs

05-06 Tiburon I4
curb weight 2898 lbs

OEM PARTS

OEM Rear Seats (leather)
back part of seat (2): 11 lbs each
bottom part of seat: 14 lbs
all brackets, belts & bolts: 6-7 lbs
Total rear seats weight: 43 lbs approx

Stock Leather Seats (front)
50lbs each approx


Trunk Floor Paneling
Spare tire folding panel: 3 lbs
Surrounding floor panel: 5-6 lbs

Rear Jack
Rear jack: 4-5 lbs

Spare Tire
Spare tire: 36 lbs

Stock Rotors
Front rotors: 15 lbs 8.6 oz

Stock Calipers
Front Calipers: 12lbs 10.8 oz

17" Wheels
OEM 17" wheels(4): 22 lbs each

16" Wheels
OEM 16" wheels(4): 24-26 lbs each approx

16" Wheels WITH tires
OEM 16" wheels(4): 45lbs each

Stock Dual Exhaust
Factory Exhaust: 40-41 lbs approx

Engine Cover
Plastic Engine Cover: 4-5lbs

Stock V6Headers
Stock headers: 37.5 lbs


Stock I4 Headers

Header = 37.5 lbs
Downpipe = 24.0 lbs
Midpipe = 13.5 lbs

Stock Air Intake Assembly
5lbs


AFTERMARKET PARTS vs. OEM

VIS Carbon Fiber Hood
VIS CF hood: 24 lbs

Erebuni GTR Hood
GTR Hood: 15 lbs approx

Misc Parts

Sound Destroyer Mat
2mm thick, 50 sq ft area :5 lbs

Found here: http://www.newtiburon.com/forums/v6...ums/v6-naturally-aspirated/77329-official-tib-weight-thread-gk.html#post1347688

 

So 43 pounds...will removing that really make any noticeable difference?
I mean, I have a pair of large subwoofers that weigh no telling how much so probably wouldn't be worth it.

 

If you're removing the back seats you should also remove the engine bay covers and their associated brackets. Not only does this reduce weight but theoretically it holds in less heat and provides less restriction for flowing air. And it makes your car easier to work on...
Also consider replacing your tire and spare jack with a can of fix-a-flat. I personally didn't do that one, but it's all up to you. Doing about 100 pounds of weight reduction subtracts .1 seconds from your quarter mile, which with all of those things you would be losing about 100 pounds... Might make for a more consistent 0-60, sure.

 

...........Also consider replacing your tire and spare jack with a can of fix-a-flat........

ah, fix-a-flat. the fastest way to make your mechanic hate you. I don't recommend fix-a-flat, I recommend leaving the spare tire where it is for normal day-to-day operation and removing it for drag nights or equivalent when weight reduction really matters.

 

I think the second time I had to work on our V6 Tib engine, I pulled all covers and stored them.
It's a DD, no Frikkin need for covers.......

 

Weight reduction won't improve performance that much.

Get a faster car. This will improve your 0-60

 

True.

Fastest way I see peeps KILL 0-60 is buying big butt rims that are wider and cast. On a scale they can be 10lbs heavier. Add to that the biggest mass is further out on the diameter.
Read up on "moment of inertia", this can suck a huge amount of perceived power.
Buying the smallest diameter FORGED rim that clears the brakes can help. It does not ADD power, it just wastes it less (like light pullies and flywheels).

I have done 0-60 tests with peeps with their big rims vs. stock rims. You can sometimes see a big drop in times with the stock rims.

It helps to understand some of the mechanical engineering of things.:nerd2:

 

@TexanTib06GT never even had the stock back anyway and I took out my spare in favor of a pair of gargantuan subwoofers.