Originally Posted by 1QuikWS6
The diffuser for the non-turbo looks exactly the same as the turbo dual outlet exhaust diffuser, with the exception that it has the proper cutout on the DS ONLY sized for the dual tip single muffler.
There are pics of the iS non turbo diffuser on cars in the forum. I'm pretty sure this is one shown in this post:
Only difference is, he painted the inserts at the outer corners to match color of his car instead of the standard black inserts...
actually that link is not the IS diffuser that is a AERO rear bumper..look closely at it..
here check this out