Is there a way to "bend" fibreglass?

[mardak at cogeco.ca (Mark)]

I have a repro Mk1 "S" fibreglass airdam that I bought from a guy in
Toronto.  I went to install it the other day, and it's about an 1" too short
on both sides.  It looks like when they made the mold from the original,
they didn't take the actual contour of the car into consideration (the
original "S" spoiler is VERY flexible).  The sides are actually long enough,
but the fibreglass is too stiff to allow the spoiler to cinch up to the body
in the front.

So, can I heat it up, or soak it in something to permanently change the
contour of the spoiler?  I guess I could always cut the sides and add an
extra inch of fibreglass, but it looks a bit too square in the front.  Any
ideas?

Thanks!

Mark.
80 S
81 S