raising suspension

[Terminal]

Hey guys. i've had my car inspected and they told me it was too low, now i bought it at this height, but they told me its only 80mm clearance, when i need 100mm. anywho, i was wondering if anyone knew of a cheap way to raise the rear suspension by just an inch. does the rear seat have to be removed so at to get to the top of the tower thingy? i was thinking i could just put a spacer in the top of the tower, but im not really sure on how the suspension setup in a skyline works, as im only new to them. any help is appreciated.

[Bleach1]

does it have coil overs?

[Terminal]

yeah i think it does. i was quoted $150 to replace the srpings with standard ones, but i figured if i can get a set of standard cheaper ill install them myself. ill figure it out i guess, i can only break more things.

[GZ R33]

Was the body of the car to low or was the exhaust to low.