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07-25-2020, 04:36 PM
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#1 |
 
Drives: 12SS Join Date: Apr 2010
Location: Dayton, Tx. 77535
Posts: 728
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Performance
Is there a difference in performance between 1-3/4 and 1-7/8 headers?
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07-25-2020, 04:48 PM
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#2 |
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Account Suspended
Drives: 2013 Sparkly Red One Join Date: Dec 2018
Location: Hospitality State
Posts: 2,558
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Get the 1 7/8.
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07-25-2020, 05:35 PM
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#3 |
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Started#gottalovethatblue
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Yes. Go for 1 7/8" minimum.
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07-25-2020, 05:49 PM
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#4 |
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Account Suspended
Drives: 2013 Sparkly Red One Join Date: Dec 2018
Location: Hospitality State
Posts: 2,558
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2" is more for FI engines. If you are NA, stay with 1 7/8".
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07-25-2020, 08:24 PM
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#5 |
          
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,018
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2" no matter NA or boosted
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07-25-2020, 08:29 PM
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#6 | |
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Drives: 12SS Join Date: Apr 2010
Location: Dayton, Tx. 77535
Posts: 728
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Quote:
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07-25-2020, 10:10 PM
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#7 |
Drives: 2010 CGM 2SS/RS LS3 Swapped A6 Join Date: Sep 2016
Location: Spring Hill, FL
Posts: 4,570
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It's a minimal difference. But if you are that vested in performance and getting every ounce of performance from your $ then the 1 7/8", or better yet, the 2" are the way to go.
If I had gone with 1 3/4" headers I likely would always be thinking 'Man, I wish I had gone bigger' - Kind of how I am with my cam. Dammit.
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2010 CGM Camaro 2SS LS3 Swapped A6 - GPI LS3 SS1 .647/.638, (224/237, 112 +4, 7º overlap) on CamMotion 8620 core, BTR Platinum .660" Dual Spring kit w/titanium retainers, CHE bronze trunnion upgrade, stock heads milled @ .015, Melling HV 10296 oil pump, TSP 1-7/8" long tube headers (W/Catless Off-road Pipes), Corsa Xtreme 3" Catback, GPI Ported/Rod Mod Intake, Stage 2 Ported Throttle Body, Vararam OTR CAI, Mike Norris Gen 2 catch can + GM 1LE clean side separator, 160º thermostat - Megan Racing adjustable coilovers (lowered 1.75"), MRR M017 10/11" wheels-Tuned by Ryan @ GPI
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07-26-2020, 02:48 PM
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#8 | |
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Drives: 12SS Join Date: Apr 2010
Location: Dayton, Tx. 77535
Posts: 728
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Quote:
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07-26-2020, 03:14 PM
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#9 | |
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Started#gottalovethatblue
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Quote:
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07-26-2020, 03:59 PM
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#10 |
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Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,018
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Ive seen TSP 2" on quite a few 5th gens.
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07-26-2020, 04:10 PM
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#11 |
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Drives: 12SS Join Date: Apr 2010
Location: Dayton, Tx. 77535
Posts: 728
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Thanks for the help all
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07-26-2020, 11:25 PM
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#12 |
Drives: 2015 1LE Join Date: Oct 2015
Location: Cleveland, OH
Posts: 1,485
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Not sure it would make a difference, if you can get a good deal on either one go for it.
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2015 1LE, TSP 225/236 113+3, VMAX Throttle Body, CAI with race scoop, GPI Ported Intake, Land Speed Stage 2 Heads, 1-7/8 headers, NPP exhaust, 25% Fluidampr, LT1-S Monster Clutch, 485 RWHP & 444 TQ
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