I came across these 2 LT230EH's left in the woods behind my friends place. I bought both for less than $200.  I'm using one for parts and trying to get the other one put together.  I have 2 factory exhausts that are in lousy shape.  I've searched quite a bit for any aftermarket exhausts proffered for the 87' model.  Apparently DG started making pipes for the LT230E in 88'.  I'm out of ideas and was hoping one of you guys would know if there is an aftermarket option.  Is there someone I could go to for a custom header pipe and possibly a muffler?  I'm wanting to completely go through the motor and transmission.  I was wanting to do a big bore on it, and I'd like to get it back to like new, just with a bunch of added HP & torque... and if anybody can tell me what kind of things I can do to the motor, that would be great.  Do they make cams, bigger valve job?, custom +4swinger, wider a-arm?,....I'd like to bore it to a 300, updated and larger carb if needed..?  What options are there for an 87'?