Dual outlets - success - 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 04-15-2017, 12:29 PM
Skyvoy Skyvoy is offline
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2006 GMC Envoy SLT
Summit White 4.2L I6 4X4
Join Date: Apr 2017
Location: Canada
Posts: 8
Dual outlets - success

I can post photos if anyone's interested, ran a "Y" after the muffler and custom bent in 2-1/4" duals that exit in slash fashion just behind rear wheel at bottom of rear bumper cover. Looks subtle and IMO way better than single pipe. Lack of converter and res makes it a little raspy, might find a way to add in some short length glasspacks to mellow the tone.

Cheers
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Old 05-05-2017, 07:06 PM
audiblehd audiblehd is offline
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2009 Chevy TrailBlazer LT
Summit White 4.2L I6 4X4
Join Date: Feb 2017
Location: Pacific Northwest
Posts: 8
Cool!
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Old 09-11-2019, 07:38 PM
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B_rock B_rock is offline
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Sorry I'm late to the show here, any chance on seeing the pictures. I would like to do dual pipe but waiting till I decide on upgraded manifold
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