Weight savings cost/benefit benchmarks

Richbot a écrit

Mon dinan bar était un peu plus lourd sur mes balances que mon stock, mais ce n'était pas beaucoup.

Idem. J'ai pesé les deux moi-même, et iirc le dinan v2 était 2 lbs plus lourd ~.

lucid wrote

Regardless, it would interesting to know how much the rear seats weigh for instance--not that I would remove them.

Rear seat weight 20kg

Looking for a few weights if anyone has them or has a postage scale handy. I like to keep a spreadsheet to track every little weight loss or gain down to the fraction of a pound mostly because I just enjoy the process. Unfortunately my M3 came modded so I am missing these parts to weigh and I'm hoping to avoid buying stock stuff just to weigh. To pay it forward I'll also share some weights I've taken.

Need weights on:
- Stock intake elbow complete with hose clamps all the way to the filter itself (as pictured)
- Stock 08 (?) EDC coil spring 1x front
- Stock 08 (?) EDC coil spring 1x rear
- H&R Sport coil spring (red) 1x front
- H&R Sport coil spring (red) 1x rear

Some weights to share in exchange:
- OEM Engine Mount L (worn but not leaking) 1.69 Lbs
Bimmerworld Group N Mount 1.81 lbs

- OEM Engine Mount R (worn but not leaking) 1.69 Lbs
Bimmerworld Group N Mount 1.81 lbs

- OEM Axle Back Exhaust 55 Lbs
Megan Racing / Agency Power Axle Back Exhaust 31.8 lbs

- OEM Tires F 23.37 Lbs
Hankook Ventus V12 Evo 2 275/30/19 FR 26.4 lbs
- OEM Tires R 25.36 Lbs
Hankook Ventus V12 Evo 2 295/30/19 RR 28.02 lbs

- OEM 19" Wheels F 23.3 Lbs
Forgestar 19x10 +20 FR 24.1 lbs

- OEM 19" Wheels RR 25.5 Lbs
Forgestar 19x10 +20 RR 24.1 lbs

- OEM Con-rod Bolts x16 1.12 Lbs
ARP 2000 / BE Con-rod Bolts x16 0.96 lbs

Looking for front carpet weight (front section only).

Have a few weights to share:

TopSpeed non-res Xpipe: 19.6lbs
Front E92 Door Crash Bars (x2 per door): 6.5lbs / door
Amplifier: 4.8lbs
Rear Shelf Cover & antenna module: 7.8lbs

https://www.google.com/search?client=firefox-b-1-d&q=bmw+E90+M3+rear+crash+bar+weight#fpstate=ive&vld=cid:667491c3,vid:vDFkatP3Se4