Sec. 11. (a) Except as provided in subsections (b) and (c), the manufacturer under section 6(2) of this chapter is the responsible manufacturer or installer if:
(1) any part of the conversion results in the nonconformity; or
(2) the nonconformity is related to or caused by the conversion.
(b) The manufacturer under section 6(1) of this chapter is the responsible manufacturer or installer if the part of the converted motor vehicle that results in the nonconformity is not caused by or otherwise related to the conversion.
(c) The installer under section 5 of this chapter is the responsible manufacturer or installer if the nonconformity is related to or caused by the installation of the conversion into the converted motor vehicle.