It’s midnight and despite having to wake up at 6am tomorrow, my brain decided it wanted to write out a list. Okay... Here we go. From the factory my Miata weighed 2,250 pounds/1,020kg. Let’s do some simple napkin math to guesstimate how heavy it is as of right now.
Stock seats, which were thick, padded leather with heavy headrest speakers and even heavier sliding brackets. 55 pounds each, replaced by Bride replicas with garage star brackets, totalling 18 pounds each.
Removed passenger airbag, removed stock steering wheel (with airbag) and replaced with removable wheel.
Swapped stock 14x6 wheels at 10.8 pounds each for 15x8 alloys at 11.6 pounds each.
Swapped stock brakes for a Willwood 4-piston brake kit. 3.5 pounds shaved per corner.
Stock cat replaced with flyin Miata high flow cat, everything past that replaced with an insanely lightweight fujitsubo racing exhaust. Stock muffler, cat and middpipe are slightly under 40 pounds altogether. Fujitsubo and high flow cat come to a hair under 20 pounds.
Pretty much all sound deadening and about 40% of interior carpeting is removed. A decent amount of interior trim, both plastic and metal has been removed. I’m guessing twenty pounds total
Removed the window washer tank, and all corresponding hoses, electrical doo-dads. For whatever reason the Miata has a MASSIVE stock tank, larger than a gallon of milk. Heavy when full, but I don’t know if the initial “from factory weight included washer fluid so we’ll keep the estimate low here
Lightweight radiator. Cheap Chinese radiator off Amazon, bought and installed in the first week of ownership. The scale verified the lightweight claim
LED headlights. Guesstimating here, but these suckers are very heavy compared to the stock lamps.
Replaced my soft top, switching from a plastic rear window to glass. Hard to measure, but definitely picked up some weight there.
Rollbar. Biggest weight gain, by far. Still pretty light considering it’s got a cross brace, harness bar and beefy mounting plates/hardware.
Removed the useless sun visors
My Xida coilovers are 7 pounds in the rear, 8 in front. I’m finding zero info on stock suso weights for an NA Miata... But an NC Miata’s spring/shock assembly is about 10.5 pounds, which is quite light for stock. We’ll use that
Alright, that’s everything! Everything I can think of at least, I’m sure I’m missing a few things but this will be pretty close. Guessing... 2,080 pounds.
2,139 pounds/970kg! Not too shabby... Especially considering the car certainly isn’t stripped and is easily liveable, at least by my standards. 111 pounds have been lost overall. Now, time for the sad part.... Every time I climb inside, I’m adding another 175-210 pounds, depending on my current training regimen. Poor Miata trys so hard to add lightness and I have to screw it all up! I can’t wait to join the boost side and more than double the horsepower... won’t have to worry about shaving screws after that.