single stage hi flow cat

[leadfoot]

im going to geting a single stage hi flow cat this thursday hope the power gain is enough to where i can see a diference. oh it's street legal and will pass emmisions with it too.

[8ggalant]

u probly wont see a diff our exhaust is pretty free flowing...other than the resonators but since yer car is newer...yer cat really should be fine....it will help with other mods (full exhaust, sc/turbo..etc

[cdaw2001ES]

Do you have a header?
If not - Your not going to see any diff at all, as the one on the manifold is the most restrictive part of the system. the one under the car is just a secondary - there to catch anything the first one missed.

[leadfoot]

oh well i guess it header thats next for my car