Anyone have experience using international freight forwarders?

I have a customer in Dubai that wants a shipping quote on an exhaust. I'm afraid the box is going to be to big to use USPS, and have never used a freight forwarder before. I also have had a few people looking for AGIP oils, but that is a big fat NO with the post office lol.

Use fedex. 
 
way better.
a bit more pricey but worth it.