I put a bolt together Walker system on Pickup from NAPA and it works well enough. The fit was not terrible, one pipe to trim to length and I ended up customizing it with a length of flex pipe in the middle. It wasn't expensive, about $350 including the converter (my truck only has one and the whole system is much more simple, so I doubt it's comparable). Just slightly louder than stock.
That said, I'd hit a shop and have one bent up, although maybe check prices on catalytic converters and get one yourself. Amazon has them pretty cheap, for example.
'91 Pickup - Imelda
'08 Tacoma TRD - Donna
'09 Kawasaki KLR650
'12 Gunnar Rockhound 29
"Our task must be to free ourselves from this prison by widening our circle of compassion to embrace all living creatures and the whole of nature in its beauty. Nobody is able to achieve this completely, but the striving for such achievement is in itself a part of the liberation and a foundation for inner security. " --Albert Einstein