I have 05 Civic VP 2dr, so I guess that would be a DX. The SP2 Greddy catbacks have 2 models one for the LX which has 3 pieces and one for the DX which is 2 pieces. They said the LX is 3 pieces because the catalytic converter is located all the way up front. So why isn't the DX a 3 piece kit also because I've seen my car on a lift and the cat is attached to the exhaust manifold. So which one do I get?