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Does anyone have any comments on the brand Hyper flow cat's for replacement of the ANSA OE part for a f355 ferrari.
From what I have researched, the Hyper-flow has better performance that the ANSA supplied factory replacement part.
Does anyone know if the sound will be affected, and if I were to replace one, would it be better if I replace both cats.
From what I have researched, the Hyper-flow has better performance that the ANSA supplied factory replacement part.
Does anyone know if the sound will be affected, and if I were to replace one, would it be better if I replace both cats.