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Old 06-10-2013, 11:31 AM   #1
Rare99SS
 
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Best Flowing Exhaust Manifolds for LS3?

What are the best flowing factory exhaust manifolds? Are the ZL1 manifolds better than the SS? This is probally a dumb question to some or all because headers are king and I completely agree on that. But it would interesting to know for some who want that stock appearing look.
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Old 06-10-2013, 11:48 AM   #2
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Good question, ive often wondered this myself.

I have a feeling that the upcoming 2014+ Z28 with the LS7 will have the "best" factory flowing exhaust manifolds.
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Old 06-10-2013, 12:33 PM   #3
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The LS7 would probably be your best bet but the flange is different and it wouldn't fit an LS3. I dig the stealth idea but the gains would be pretty minimal anyway. If you want stealth add headers and keep your stock mufflers......and then add nitrous.
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Old 06-10-2013, 01:07 PM   #4
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Have you tried the eBay headers with the Lo-flow cats?

Lol
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Old 06-10-2013, 01:09 PM   #5
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Quote:
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Have you tried the eBay headers with the Lo-flow cats?

Lol
That's funny.
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Old 06-10-2013, 01:12 PM   #6
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Have you tried the eBay headers with the Lo-flow cats?

Lol
Oh yes this is the way to go. Add in a K&N Hot Air Intake with a K&N NOTSO Super Charger w/ 25" pulley, and you'll be the king of stealth.
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Old 06-10-2013, 01:39 PM   #7
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Oh yes this is the way to go. Add in a K&N Hot Air Intake with a K&N NOTSO Super Charger w/ 25" pulley, and you'll be the king of stealth.
Also add in the New Wonder Woman inviso paint for that COMPLETLY stealth look!! They won't even see you beside them!! Bra and panties sold separately!!

This advertisement was brought to you by Camo Condom! "Never let em see you cuming!"
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Old 06-10-2013, 01:48 PM   #8
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This advertisement was brought to you by Camo Condom! "Never let em see you cuming!"
Do those come in Hard wood Camo?
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Old 06-10-2013, 01:49 PM   #9
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You could look at the new holley cast units. Not really worth the price to purchase but they'd probably flow marginally better than stock and are close to stock appearance.
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Old 06-10-2013, 01:50 PM   #10
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http://www.holley.com/types/LS%20Cas...0Manifolds.asp
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Old 06-10-2013, 02:04 PM   #11
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Would ZL1 manifolds be a direct swap on a LS3?
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Mine - 1999 Camaro SS M6 Black Hardtop Stripper SLP# 3521
Mods: SLP Lid, SSRA, ARH LT, Catted Y, GMMG, CME, LS6 Intake, Ported TB, SLP UD Pulley, MGW Shifter, Solid MM, JeremyF StreetTune, Strano Springs, UMI 3pt SFC & UMI Tunnel Mount TA & UMI DA PHB, Founders LCA RB & Adj LCA, Fikse FM5
Moms - 2010 Camaro 1SS M6 Black w/Silver Stripes - Dyno Tuned 411/411
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Old 06-10-2013, 02:05 PM   #12
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Do those come in Hard wood Camo?
As a matter of fact they do!! They are available in Hard Wood and Douglas Furrburger!
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Old 06-10-2013, 02:11 PM   #13
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Those are LS7 and LS9 only.
You mean the ones that say all LS engines EXCEPT LS7 and LS9?
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Old 06-10-2013, 02:13 PM   #14
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You mean the ones that say all LS engines EXCEPT LS7 and LS9?
Okay never mind I don't have my contacts in
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