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Mar 23, 2008 | 06:14 PM

#16

mSaLL150

Technical Article Contributor

Joined: Aug 2006

Posts: 7,862

Likes: 0

From: Northern California

Quote:

Originally Posted by Richard D

Cats can be replaced as long as they are OBII compliant. However legally if you have 4 you must replace with 4.

I talked to a magnaflow rep about this on the phone a while back, and i'm pretty sure specific vehicle models have to be approved for aftermarket cat replacement by CARB, as well as the aftermarket cat being approved. The F150 hadn't been approved yet (when i talked to him last fall).

Mar 23, 2008 | 08:43 PM

#17

shifty_85

Senior Member

Joined: Oct 2007

Posts: 3,439

Likes: 0

From: farmington hills, MI

humm i guess just move outta commie-forna! no long tubes..thats no fun!

Mar 23, 2008 | 09:05 PM

#18

Klitch

Senior Member

Joined: Oct 2003

Posts: 4,920

Likes: 5

From: Washington

ID law says no modifications to exhaust to amplify the sound of the exhaust... they really dont target the trucks but DAMN they love pullin my probe over.