DSantagato,
We don't sell that brand, but can fill you in on the info you requested. The duals have an ever so slight performance gain, not enough to replicate on a dyno accurately though. It's a "LOOKS" thing, smoke from both sides etc. Plus is really surprises a lot of rice rockets too! You need to have a 4x4 to have them fit correctly unless you're into fabricating so keep that in mind too! Call us if you have any questions, we have duals in aluminized, 409 and 304 stainless as well as all the singles too!
Mark @ DPPI