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Mk1 Cat Back Exhaust System
chelseyepstein edited this page 2 months ago
In California, it is illegal to select a catalytic converter for installation based solely on vehicle weight and engine size. The design of these systems often sees an increase in horsepower compared to the factory design of a vehicle. Because stock models try to minimise materials and maximise space, with horsepower as a lower priority.
Considering cat-back exhausts replace more restrictions, they typically offer increased performance and noise compared to axle-back systems