The resonator just went for a crap in my car. My question is are the Forenza's and Optra have the same exhaust system? When I checked Rockauto, they list a resonator for the Forenza but don't for the Optra so I want to be sure before I purchase it and have it shipped to Canada and have it be the wrong part and have to pay to ship it back. I would also like to know should I buy an exhaust gasket kit or? I don't ever do exhaust by myself, it always ends up never sealed lol. Thanks in advance!!