expanding foam into subframe and chassis???

[gofaster_s13]

It's a drift car, the shell will most likely be thrashed before rust becomes an issue, a lot of the expanding foam is fire retardant the proper stuff is used as a fire barrier around pipes and ducting in buildings and isnt toxic when burned. It is a cheap, cost effective way of very noticeably increasing the stiffness of a car.

[git]

No offence but dont try to defend using expandin foam ha just do the.common modification a cage! Simples

[pt_y2k]

My sills in the 86 are filled too...

[gofaster_s13]

No offence but dont try to defend using expandin foam ha just do the.common modification a cage! Simples

Do both

[20vees]

Fill them with concrete lad........ It'll stiffen her up and save ya money on lowering springs

thats some funny shit ...maybe a couple bags of coal too to be hella flush lol

[JDM]

Ye alot of jap people do it in there drift car s power vechiles did it in there red s13 for ridge abilaty or some thing like that its ment to be like bracing the chassis legs iam in the process of putting it down mine from the front all the way to the back

[Chuck_g]

The Chaser's Chassis is Filled with Foam. Definitely benefits rigidity.