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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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  #111  
Old 03-28-2009, 11:28 PM
pjaneiro's Avatar
pjaneiro pjaneiro is offline
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2002 Chevy TrailBlazer LT
Forest Green Metallic 4.2L I6 4X4
Join Date: Feb 2007
Location: Montreal, Quebec, CANADA
Posts: 899
Quote:
Originally Posted by BUC NASTY View Post
This is a terrible header for us I6s! We cant even use our cat converters. Here is a better picture of the headers we need so that we can use our cat converts








BTW, Who ever is leaving there truck as a TEST SUBJECT, show them this pic so they have an idea on how to make our headers.
Ok, first off, the first header is a shorty, and the 2nd headers are crap, header configuration must be a 6 to 1, anyhow, after all the work i've done on exhausts on the tb, and the test fittments i did for headers already, i even had a custom one made for the tb a while back, thing sounded great, but i had lost all low end tq,

edit, i have no clue what hapened to the first pic, sorry


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  #112  
Old 03-28-2009, 11:32 PM
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pjaneiro pjaneiro is offline
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2002 Chevy TrailBlazer LT
Forest Green Metallic 4.2L I6 4X4
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i really hope they get the ball running, and at the same time, maybe we could send s&s headers a few pics and tell them haha you ****ers you missed out...

Yeah yeah i'm still sour from that one

http://forums.trailvoy.com/showthread.php?t=29618
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  #113  
Old 03-31-2009, 09:34 PM
skywalkerlt5 skywalkerlt5 is offline
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2004 Chevy TrailBlazer LT
Dark Gray Metallic 4.2L I6 4X4
Join Date: Mar 2009
Location: winnipeg, canada
Posts: 4
I am definitely interested in a header for my 04 but would want to see a finished product. A power increase would be a must.
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  #114  
Old 04-05-2009, 12:16 AM
Red06LS Red06LS is offline
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2006 Chevy TrailBlazer LS EXT
Bordeaux Red Metallic 4.2L I6 4X4
Join Date: Jan 2007
Location: Colorado Springs, CO
Posts: 198
OK....So....I'm out for the short term. Just filed my taxes and got the news that I owe a little over $1300. Wouldn't be so bad except that I DON'T FREAKIN HAVE IT!!! Put me on the list for a possible later purchase. This sucks! First time ever that my wife and I have owed. Knew it could happen when my wife had to cash out her 401k to help pay for some medical bills. I thought we would've come a lot closer to breaking even. But didn't happen. Guess I'll be looking at a possible header a little later than expected.
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  #115  
Old 04-07-2009, 10:02 PM
02SOMWS6 02SOMWS6 is offline
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2003 Chevy TrailBlazer LS
Pewter Metallic 4.2L I6 4X4
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Posts: 53
I'm going to try to get a base line dyno this week but not sure how to keep the trans from down shifting when it goes WOT in 3rd on the dyno. It gets dropped off next wednesday then I'm on vacation for a week so there won't be any undates for a little while.
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  #116  
Old 04-07-2009, 11:23 PM
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ScarabEpic22 ScarabEpic22 is offline
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2002 Chevy TrailBlazer LT and 2008 TrailBlazer SS (3SS)
Summit White 6.0L LS2 V8 AWD
Join Date: Apr 2005
Location: Spokane/Seattle,WA
Posts: 10,855
Quote:
Originally Posted by 02SOMWS6 View Post
I'm going to try to get a base line dyno this week but not sure how to keep the trans from down shifting when it goes WOT in 3rd on the dyno. It gets dropped off next wednesday then I'm on vacation for a week so there won't be any undates for a little while.
Might have to use 2nd, its a bummer neither EFILive nor HPTuner can command the PCM to hold a gear. (Havent heard HPT can, know EFI cant.) Have it in my SS so Im not worried about that, but I need to dyno my 02 with my mods before I start parting it out.
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  #117  
Old 04-07-2009, 11:29 PM
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pjaneiro pjaneiro is offline
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2002 Chevy TrailBlazer LT
Forest Green Metallic 4.2L I6 4X4
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Location: Montreal, Quebec, CANADA
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Quote:
Originally Posted by ScarabEpic22 View Post
Might have to use 2nd, its a bummer neither EFILive nor HPTuner can command the PCM to hold a gear. (Havent heard HPT can, know EFI cant.) Have it in my SS so Im not worried about that, but I need to dyno my 02 with my mods before I start parting it out.
Hptuners can command the tranny to hold gears


I know.....lol and not by choice.....
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  #118  
Old 04-07-2009, 11:30 PM
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pjaneiro pjaneiro is offline
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2002 Chevy TrailBlazer LT
Forest Green Metallic 4.2L I6 4X4
Join Date: Feb 2007
Location: Montreal, Quebec, CANADA
Posts: 899
Quote:
Originally Posted by ScarabEpic22 View Post
Might have to use 2nd, its a bummer neither EFILive nor HPTuner can command the PCM to hold a gear. (Havent heard HPT can, know EFI cant.) Have it in my SS so Im not worried about that, but I need to dyno my 02 with my mods before I start parting it out.


Euh did i read right ?


SS ?


since when....

i'm jealous now...

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  #119  
Old 04-08-2009, 12:19 AM
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Foosh Foosh is offline
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2004 Chevy TrailBlazer LT
Summit White 4.2L I6 4X4
Join Date: Aug 2007
Location: Monmouth County NJ
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Quote:
Originally Posted by 02SOMWS6 View Post
I'm going to try to get a base line dyno this week but not sure how to keep the trans from down shifting when it goes WOT in 3rd on the dyno. It gets dropped off next wednesday then I'm on vacation for a week so there won't be any undates for a little while.
wait do you have the heADER on?
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  #120  
Old 04-08-2009, 01:21 PM
02SOMWS6 02SOMWS6 is offline
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2003 Chevy TrailBlazer LS
Pewter Metallic 4.2L I6 4X4
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Quote:
Originally Posted by Foosh View Post
wait do you have the heADER on?
no I don't have it yet . I'm trying to get before and after numbers
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