"back-seat-remove" option.

[Z_Rocks]

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?

[JDLM]

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

[blur]

LMAO @ 100 lb back seat

[djdnz]

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

[ft86Fan]

Originally Posted by blur

LMAO @ 100 lb back seat

Maybe its massaging chairs.

[Dave-ROR]

Originally Posted by JDLM

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

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.

[JDLM]

Originally Posted by Dave-ROR

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

[Longhorn248]

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

[bambbrose]

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.

[swift996]

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

[WolfpackS2k]

Originally Posted by bambbrose

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 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).

[JDLM]

Originally Posted by WolfpackS2k

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).

material ie: Titanium but w/ that also comes cost

[WolfpackS2k]

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.

[bambbrose]

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.

[Scottyscooter]

As others have already mentioned, the back seat is just a piece of cloth covered formed foam that can't weigh any more than 15 lbs so they are already covering the surface in a neat manner for you.

[Z_Rocks]

Thanks everyone for the input. So I think the exhaust and forged aluminum wheels would be the first choice for weight reduction.

Now they did say, the BRZ STI will have carbon roof and maybe carbon hood. But, wonder when the BRZ STI will show up.

[NorCalRider]

Originally Posted by Z_Rocks

Thanks everyone for the input. So I think the exhaust and forged aluminum wheels would be the first choice for weight reduction.

Now they did say, the BRZ STI will have carbon roof and maybe carbon hood. But, wonder when the BRZ STI will show up.

That was just for the concept at the LA auto show. Would be nice if it actually makes it to the production model Sti.

[KevinDuMa]

I think I'm going to keep the back seats only for storage purposes. I need some where to throw my jacket and books.

[oneday]

Originally Posted by Z_Rocks

Thanks everyone for the input. So I think the exhaust and forged aluminum wheels would be the first choice for weight reduction.

Now they did say, the BRZ STI will have carbon roof and maybe carbon hood. But, wonder when the BRZ STI will show up.

The car already has an aluminum hood and roof...CF versions will save a few pounds, but might even add weight (most CF hoods have a glass backing... on the 04-06 STI/03-05 Evo a CF hood weighs considerably more than their OEM aluminium hoods).

Considering how light this car is (relative to all other modern cars with all the same safety items), in order to accomplish any further weight reductions (beyond wheels) you'll have to start deleting convenience items (radio/hvac/airbags/carpet/panels/glass).

[bambbrose]

Here is a good list of obvious easy weight reduction:

-exhaust
-wheels
-suspension
-spare tire/jack
-misc plastics (motor cover, etc.)

Next level:
-sound deadening from interior
-firewall mat
-undercoating from chassis

Next level:
-replace with FIA approved racing seats (illegal in US to remove side airbags)
-remove front airbags (illegal in US) racing steering wheel.
-remove rear seats, carpet, interior
-install cage and proper harness for seats


anything above that level is getting beyond street car level IMO. Even the racing seats are borderline. If you remove the side airbags, and then get in a wreck, the insurance company can deny your claim due to modification of the safety system.

Also remember, removing rear seats, or any weight for that matter, automatically puts you in the SM class for autox. SM can have engine swaps, turbos, etc. Big modifications! If you want to actually have fun in competitive driving, keep your interior in tact!

[tripjammer]

Don't forget to replace the heavy battery...I think it is at least 35 pounds. There are good 3 pound lithium ion batteries....for less than $300....

[ahausheer]

More importantly is lowering springs. Then this car will very nearly have the lowest COG in the world. Main reason its not already is the ride height.