The 370Z Weight Reduction Thread

[RCZ]

The point of this thread is to create a list of the weights of different stock parts and aftermarket parts for everyone's reference. People can post up what they are doing to reduce weight and ANY information about the weight changes achieved. The aim is to create an extensive list. I'll keep track of this thread as much as possible to keep the list up to date.

LBS/KG CONVERTER TOOL


STOCK PARTS:

Engine:
Full Stock Exhaust: 49.3lbs (25.4kg)
Stock Cat: 21lbs (9.53kg)
Stock Battery: 35lbs (15.88kg)

Stock Exhaust

Muffler Section - 26.8lbs (highly inefficient)
Y-Pipe - 11.6lbs
Resonated Y-Pipe - 15.6lbs
Total: 54.0lbs



NISMO Cat-back 'H' Pipe [Midpipe] = 17.2 lbs
NISMO Cat-back Rear Muffler Section [Can] = 35.2 lbs
NISMO Cat-back Front 'Y' Pipe [bolts to cats] = 13.6 lbs
Suspension:

Stock Rear Camber Arms: 2lbs (0.91kg)

Body:

Rear Under bumper Charcoal Filter Cover/Shield = 0.4 lbs
Hood 16lbs

Interior:
Base/NISMO Seat with integrated SRS airbag = 42.4 lbs
Airbag assembly from SRS Seat = 1.6 lbs
Base/NISMO Headunit/Radio = 2.6 lbs

Touring Package Leather Heated Seats (TPH): 47lbs (21.32kg)
Touring Package Bose Subwoofer: 8lbs (3.63kg)
Tools & Mats: 7lbs (3.18kg)
Privacy shade thing out of the hatch area 3lbs
Trunk Plastics - 15lbs
Hatch Weight - 2 lbs

Miscellaneous:

- Sport Package Wheels/Tires -
Front Wheels (Sport Package) + Stock Bridgestone RE050A (245/40/19): 52.2lbs (23.68kg)
Rear Wheels (Sport Package) + Stock Bridgestone RE050A (275/35/19): 56.8lbs (25.76kg)
Front Wheels (Sport Package): 23.2lbs(10.52kg)
Rear Wheels (Sport Package): 23.8lbs (10.8kg)
Front Stock Bridgestone RE050A (245/40/19): 29lbs (13.15kg)
Rear Stock Bridgestone RE050A (275/35/19): 33lbs (14.97kg)

Emergency Spare Wheel/Tire: 35lbs (15.88kg)

Stock Lug nuts 3lbs


AFTERMARKET:

Engine:

- Exhaust -
MCR Crimson Titanium Exhaust: 29.5lbs (13.4kg) | Reduction: -19.8lbs (-8.9kg)
Power House Amuse RS Silent Exhaust (STTI): 30.3lbs (13.74kg) | Reduction: 19.0lbs (8.62kg)

STILLEN Exhaust
Muffler Section - 39.6lbs (proven huge hp gains)
Y-Pipe - 11.3lbs
Resonated Y-Pipe - 14.4lbs
Total: 65.3lbs

Difference: +11.3lbs and 18whp

~Berk exhaust:
-Muffler: 32.2lbs
-X-pipe: 12.2lbs
-Resonators: 8.8lbs each (17.6lbs total)
-Bolts & Gaskets: 1.2lbs
Total: 63.2lbs

~Fast Intentions exhaust:
-Whole exhaust with SS mufflers: 47lbs
-Whole exhaust with Carbon fiber mufflers: 41lbs

~Fast Intentions Long Tube headers:
-Whole piece: 21lbs (Per thread a recorded weight loss of 17lbs total)
Suspension:


Body:


Interior:

- Reclining Seats -
Recaro Speed: 30.9lbs (14.02kg) | Reduction: (TPH) -16.1lbs (7.3kg)
Recaro Sports: 37.5lbs (17.01kg) | Reduction: (TPH) -9.5 (4.31kg)
Bride LowMax GIAS: 24lbs (10.89kg) | Reduction: (TPH) -23lbs (10.43kg)
Bride Brix II: 45lbs (20.41kg) | Reduction: (TPH) -2lbs (0.91kg)
Bride Guga: 29.5lbs (13.38kg) | Reduction: (TPH) -17.5lbs (7.94kg)

- Racing Non-Reclinable -
Bride ZETA III: 26lbs (11.79kg) | Reduction -21lbs (9.53kg)

Miscellaneous:

- Batteries -
Braille Light Weight Battery B129 (Recommended Race only): 9lbs (4.1kg) | Reduction: 26lbs (11.79kg)
Braille Light Weight Battery B14115 (Recommended Race only): 11.5lbs (5kg) | Reduction: 23.5lbs (10.66kg)
Braille Light Weight Battery B14115: 15lbs (6.8kg) | Reduction: 20lbs (9.07kg)
Odyssey Light Weight Battery PC680: 14lbs (6.35kg) | Reduction: 21lbs (9.53kg)

Footnotes:

(TPH) = Touring Package Heated

Useful Links

WHEELWEIGHTS.NET
Braille Battery