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Acura Rsx Type S Stock Cat

The stock RSX cat (left) is divided to act as a 4-2-1 header without the added external surface area that increases the time required to light off the cat. It helps low-end torque when used with the stock manifold, but wasn't doing us any favors for power production.
Project Acura RSX Type S

 The stock RSX cat (left) is divided to act as a 4-2-1 header without the added external surface area that increases the time required to light off the cat. It helps low-end torque when used with the stock manifold, but wasn't doing us any favors for power production.  View Related Article

 

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