Flowmaster Catalytic CA - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4.2L I-6 Engine and Drivetrain > Exhaust Mods

Exhaust Mods Performance Exhaust Modifications

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  #1  
Old 05-30-2016, 01:17 PM
bnwbass bnwbass is offline
Junior Member
 
2004 Chevy TrailBlazer LT
Summit White 4.2L I6 4X4
Join Date: Jun 2009
Location: san jose
Posts: 20
Flowmaster Catalytic CA

Hello all,

2004 Trailblazer. Hopefully someone can lend advice here, I need to replace my cat with CA approved replacement which means CARB compliant since I am in CA.

There appears to be limited selection when it come to CARB units from most mfg. I found a flowmaster 3912024 that according the their site is a universal fit. Does any one have knowledge of flowmatser replacements for the Trailblazer. Looking underneath, the original is round and the flowmaster is oval with what looks like a case around it. Will this fit be a problem?

Thx Bw
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  #2  
Old 12-27-2016, 02:43 PM
E10sbn E10sbn is offline
Junior Member
 
2008 Chevy TrailBlazer LT
Silverstone Metallic 5.3L V8 4X4
Join Date: Oct 2016
Location: Santa Barbara, CA
Posts: 1
Curious about these new Magnaflow Cats that claim to be CARB compliant direct bolt ons. Not any cheaper than stock for me. I have the 5.3L engine. Magnaflow part #545650
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