"back-seat-remove" option.
 

I wish we could opt to "back-seat-remove" option when ordering. For those who wish to shed at least another 100 pound and have no use for the back seat. This way the manufacture could cover the surface in a neat manner.

I wonder if Toyota & Subaru are reading these posts.
What do you think?

I think this is one area where the aftermarket will pick up ie: with the Ford Mustang seat delete

LMAO @ 100 lb back seat

They must carve the seats out of dead hippos if they weigh 100 pounds.

Maybe its massaging chairs.

Or just use subwoofer box carpet that most closely matches and glue/tape it down..

it's not hard to cover that area so it's not wide open.

And the weight.. maybe 20lbs.

Yep good old MDF

With a little bit of fiber glass and some carpet you can get rid of them yourself.

Going to a single exit exhaust will save more weight then pulling out the rear seats. I'd prefer something more like the ITR, where the don't apply the undercoating and sound deadening.

I removed the rear seats in my 911 to give it the GT3 look...it saved me about 12-14lbs. I'd think 15-20lbs max in the FRS/BRZ

I doubt that deleting the less than 2 foot long 2nd exhaust pipe from the muffler will delete anything more than 3-4 lbs. However I'd agree that an aftermarket single exit exhaust will delete a substantial amount of weight. So would an aftermarket dual exhaust (to a slightly lesser extent). :party0030:

material ie: Titanium but w/ that also comes cost

That would be the biggest "gain" yes, but even a good stainless system will drop some poundage. The Invidia cat back system I have on my S2000 is 20lbs lighter than the stock exhaust, and it's stainless.

If I recall correctly, the stock s2k system is 50 lbs, and the lightest single exit systems weigh 5 to 6 lbs.

Reasonable stainless single exit systems can be around 15-25 lbs.

Exhaust and unsprung weight are the best and simplest weight reduction measures IMO.

I think if the 86 weighs in at 2680, we can get it down to 2600 with a proper selection of exhaust, wheels, and coilover suspension alone.