Hey all,

I've always wondered, what exactly is it that makes the Spec C lighter than the equiv STi? For example the 03 Blobeye STi vs Spec C.

It's nearly 100kg difference isn't it?

Thanks

 

there is **** all in it.

 

120kgs lighter on the 03 'motorsport' 16" wheel model
90kgs difference on spec C with no Air Con
70kg's lighter on spec C limited
70 kg's lighter on 2005 model

have a look at this sti press release....... http://www.subaru-sti.co.jp/e/GRN/bulletins/040902.pdf

 

No air con alone probably saves 20kgs

 

So if I strip some carpet, get a carbon fibre boot lid and roof, I'll be on my way to Spec C weight I can't believe so much is saved by doing so little!

 

Lughter glass lightweight AC delete sound deadning ( this stuff weighs 25kg). Also extra welds are done to the body making it much more rigid.

 

sound deadening 25KG at least. it's a complete ba$tard to remove as well.

 

LOL yeh i think they glue it down.

Immy

 

So the Spec C has none of that sound proofing?

 

Nope none atall.

 

No sound proofing and a redesigned front subframe which saves a hell of a lot of weight

Tony

 

light weight battery. It all adds up.

Less paint under coats is a funny one. But i suppose 5 litres of paint equals at least 5kgs. A lot more if it was lead based!! - lol

 

The beauty is tht you get to hear everything and it's still no where near as loud in the cabin as my classic was with a full decat and no centre resonator.

 

No crash bars in the doors either!

 

Or deadlocks

 

how much does it cost to remove the sound proofing? obviously i dont own a spec c

 

Shaun had sound proofing under his bonnet Fake Spec C perhaps

TX.

 

Nah, both mine had that very thin sound proofing under the bonnet

Tony

 

TX,
It's because I had the "original" Spec C and not some watered down wannabee!

 

So how does it compare to a WRX of the same year then? They are meant to be lighter than the STI aren't they?

 

Are you asking how they compare in terms of weight? They vary throughout the years. As a reference.

2007 JDM WRX to JDM Spec C (17" model) is 1360kg vs 1390kg.

But seeing how rare JDM WRXs are, maybe a more relavant comparison will be with a Euro/UK WRX which is listed at 1415kg. So that is about 25kg more than a JDM Spec C.