These are the differences between the two with body bracing and there may be more that i dont know about
Boot Brace (rear of boot) --- wont bolt onto Spec S, but can be made to fit
Boot corner braces (front of boot) --- wont bolt onto Spec S, but can be made to fit
Rear Subframe brace --- will bolt onto rear subframe
Front Brace --- will bolt onto Spec S just behind front subframe
Roof Brace --- not sure on bolt on
Lower Pillar braces --- not sure on bolt on
Upper Pillar braces --- not sure on bolt on
Front lower control arms have base plate --- not bolt on
Front & Rear strut top plates --- will bolt on
These pics are what they look like if you are trying to source them, (missing pic of front lower control arms)
Boot Brace (rear of boot) --- wont bolt onto Spec S, but can be made to fit
Boot corner braces (front of boot) --- wont bolt onto Spec S, but can be made to fit
Rear Subframe brace --- will bolt onto rear subframe
Front Brace --- will bolt onto Spec S just behind front subframe
Roof Brace --- not sure on bolt on
Lower Pillar braces --- not sure on bolt on
Upper Pillar braces --- not sure on bolt on
Front lower control arms have base plate --- not bolt on
Front & Rear strut top plates --- will bolt on
These pics are what they look like if you are trying to source them, (missing pic of front lower control arms)
![](/discuss/proxy.php?image=http%3A%2F%2Fi266.photobucket.com%2Falbums%2Fii280%2Farcnz%2FS15RearSubframe.jpg&hash=848c12d8cb795a35acb6541e5ea6f7ea)
![](/discuss/proxy.php?image=http%3A%2F%2Fi266.photobucket.com%2Falbums%2Fii280%2Farcnz%2FChassisRailBrace.jpg&hash=2e2e877b2d877cad15269d1e07f2657d)
![](/discuss/proxy.php?image=http%3A%2F%2Fi266.photobucket.com%2Falbums%2Fii280%2Farcnz%2FBootBrace.jpg&hash=3805a4be52f8a2defd74a08a89a140cd)
![](/discuss/proxy.php?image=http%3A%2F%2Fi266.photobucket.com%2Falbums%2Fii280%2Farcnz%2FBootCornerBraces.jpg&hash=348b6d4715db7f0fa965cdfdb8a8dd94)
![](/discuss/proxy.php?image=http%3A%2F%2Fi266.photobucket.com%2Falbums%2Fii280%2Farcnz%2FBpillarToRearSeat.jpg&hash=d2038b2bace4a7c428ac38621db1b83a)
![](/discuss/proxy.php?image=http%3A%2F%2Fi266.photobucket.com%2Falbums%2Fii280%2Farcnz%2FCpillarPlate.jpg&hash=e72ea5d46f6d720df772d5f56c36c538)
![](/discuss/proxy.php?image=http%3A%2F%2Fi266.photobucket.com%2Falbums%2Fii280%2Farcnz%2FRolloverbar.jpg&hash=34d58ffccc3f0ab31f2c46f2c2bc55ae)
![](/discuss/proxy.php?image=http%3A%2F%2Fi266.photobucket.com%2Falbums%2Fii280%2Farcnz%2Ffrontstrut.jpg&hash=3a1569618e84749462a35962fb289a7b)
![](/discuss/proxy.php?image=http%3A%2F%2Fi266.photobucket.com%2Falbums%2Fii280%2Farcnz%2Frearstrut.jpg&hash=4aa6d691799fc289f1984a884acf3720)
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