My TB build draft. Opinions welcome and appreciated - 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 5.3L V8 Engine and Drivetrain > Engine Tunes/Mods

Engine Tunes/Mods Performance Engine Tuning/Engine Modifications

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Old 02-28-2019, 06:15 PM
CoPats1994 CoPats1994 is offline
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My TB build draft. Opinions welcome and appreciated

This is my first post but I've been reading on here and various trailblazer/ls sites. I picked up a 06 trailblazer ls with the 5.3 last night, 212k miles, super clean in and out on a steal because it has a "tick", yet to hear anything my ls1 camaro didn't already do. Anyway to the point, I'm going to rebuild the stock head with ls6 springs and ls7 lifters, was thinking a ls6 cam because I found a one new in box for cheap but worry its not great in a trailblazer compared to a car, would really like input on that, and ls2 oil pump and timing chain. As far as suspension I want to do the bilstein HDs, and hotchkins rear sway bar kit when I level it. I also have a trans cooler, ls1 efans, and a pcm of nc CAI sitting in my cart, and after all installs was planning on their tune. Exhaust was going to be straight forward with longtubes, hi Flo cats, and custom back from there. If anyone has input on a muffler I'd appreciate it. The truck will be my DD and I need it to be emissions compliment and not to loud as my kid is sensitive to loud noises. Any extra inputs or must does would greatly be appreciated! TIA
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Old 03-14-2019, 11:32 PM
chasnsx chasnsx is offline
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2003 Chevy TrailBlazer LT EXT
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Go with a Magnaflow exhaust system or mufflers if you want a mellow sound that isn’t too loud.
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Old 03-15-2019, 12:40 AM
CoPats1994 CoPats1994 is offline
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Thanks for the reply. I so far have bought all listed above but haven't had time to do anything but bigger tires and pcms cold air. Exhaust is just going to be headers, cats, and stock catback with the resonator deleted.
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