1994 k1500 5.7 CA smog legal upgrades?

I live in southern California I just bought a 1994 Silverado Z71 4x4 with the 5.7 with only 120k miles on the odometer and I'm wondering what power upgrades I can add without failing California smog?

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
snipped-for-privacy@gmail.com wrote:

Not much in Cali. Possibly a cat back exhaust system IF it stays under the noise limits. A good tune up. Other than that you're driving a 4X4 that is going to like gas and handle like a boat.
--
Steve W.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Site Timeline

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.