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04-30-2013, 05:49 AM
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#1 |
 Drives: 2011 camaro ss Join Date: Apr 2013
Location: Florida
Posts: 1
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Shorty headers
Hi, I am putting on a pair of Headman shorty headers on my 2011 ss ls3 and high flow cats. My question is do i remove the stock exhaust and the stock cats in one unit,or do i take them apart? And when i am putting on the shorty headers do i put them on first and then the high flow cats? Thanks Mark
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04-30-2013, 06:44 AM
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#2 |
 Drives: 2010 Summit White 2SS Join Date: Mar 2011
Location: Midland, Tx
Posts: 146
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IMO the easiest thing is to break it down into stages. take off your stock exhaust components ie mufflers, resonator, then take off your cats, then take off the manifolds. Then vice versa, install your headers, install the high flow cats, then either install new exhaust or put back on the old.
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04-30-2013, 06:49 AM
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#3 |
 
Drives: 2011 Camaro Victory Red 2SS/RS Join Date: Jun 2011
Location: South Carolina
Posts: 564
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Shortys made my car slower. Waste of time in my opinion. Ran 8.6 stock 1/8 mile then put on shorties started running 9.3-9.2
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2011 LS3 Bone Stock 1/4 - 12.841 @110.69
LS3 + CAI (no tune) 1/8 - 8.27 @ 89 |
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04-30-2013, 06:53 AM
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#4 |
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Drives: 2010 Summit White 2SS Join Date: Mar 2011
Location: Midland, Tx
Posts: 146
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well i agree, long tubes are the way to go, but some people cant afford them, this might be the only thing in his price range at the time
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04-30-2013, 06:55 AM
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#5 |
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Drives: 2011 Camaro Victory Red 2SS/RS Join Date: Jun 2011
Location: South Carolina
Posts: 564
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^ was for me too. Learned the hard way you get what you pay for :(
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2011 LS3 Bone Stock 1/4 - 12.841 @110.69
LS3 + CAI (no tune) 1/8 - 8.27 @ 89 |
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04-30-2013, 07:11 AM
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#6 | |
          
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Quote:
 OP - are you getting this?
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2013 1SS/RS Coupe L99, Stainless Power Works LT Headers, SCT X4 Custom Tune from RDP, CAI Inc. Air Intake w/ Apex Scoop, VMAX CNC Ported Throttle Body, Solo Axle-Back Exhaust w/ J-pipes, Apex Catch Can, Husky Splash Guards, Heritage Grille, 3D Carbon Rear Spoiler, Oracle Chrome Turn Signal Bulbs, GM Reverse Light Trim Billets, Gorilla Black Locking Lugs, Emblem Pros Retro SS Badges/Custom Retro SS Kickplates/Under-hood Bowtie, 35% window Tint, Nitto Motivo Tires (6-8-18)
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04-30-2013, 07:28 AM
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#7 |
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FreakyFast!
Drives: 2010 2SS/RS S/C NicKey #55 Join Date: Feb 2011
Location: Central Illinois
Posts: 931
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Have Borla shorty's on mine with stock cats. I'm not unhappy with them, but if you're going for the most performance which sounds like you are install High Flow Cats, I would suggest going with Long Tubes.
If I had it to do over, I would have went with LT's and HFC's. That's only because now, I would like to extra giddy-up that they provide. Just my opinion and thoughts.
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 2010 2SS/RS #55 NicKey Stage 2S Super-Camaro custom painted by Pete (Mr. Showstopper) Build Thread: http://www.camaro5.com/forums/showthread.php?t=250743 |
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04-30-2013, 12:59 PM
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#8 | |
Drives: 2012 Camaro 2SS/RS Join Date: Jul 2010
Location: Cleveland, OH
Posts: 3,267
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Quote:
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04-30-2013, 01:18 PM
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#9 |
 
Drives: 2013 2SS Join Date: Aug 2012
Location: Salt Lake City, UT
Posts: 372
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I put headers on my v6 before i got the v8, but obviously same theory... I just went piece by piece. I remove the cats, then the headers.... Then put on the headers, then the cats.
If you keep them connected i don't think you can get them all off at once if you're just using little cats. Either way, it's a fun mod to do. Take your time and enjoy it. Just go piece by piece to make it easier.
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04-30-2013, 02:11 PM
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#10 |
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Drives: 2015 Z/28 #533 Join Date: Jul 2012
Location: NY
Posts: 6,731
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Take the shorties, sell them, and get a good set of long tubes.
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04-30-2013, 02:19 PM
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#11 | |
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V8 Lounge member #2
Drives: 2001 Ws6 Join Date: Sep 2009
Location: Burbank,IL
Posts: 6,373
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Quote:
You'll be loosing on the shorties when you sell them lol Tsp has the Lt's back in stock. If your putting shorties and hf cats it's gotta be for performance, hope it's not for looks lol.
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2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
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04-30-2013, 02:49 PM
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#12 |
Drives: 2017 1SS 6spd Join Date: Jan 2011
Location: Utah
Posts: 2,869
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On the V6, Chevy put a typical cast iron exhaust manifold with poor flow.
When I installed JBA short headers on my V6, I had to cut 9" of pipe off the front of the cat midpipe to maintain the position of the converter. When I pulled the cats off a friend's L99 V8, I noticed it looked alot like my modified midpipe right off the car. See pic- modified V6 pipe on top, L99 below- I think it shows GM put a decent set of "short headers" on the V8 from the factory and you may as well wait on the long tubes or just install a good set of HFC's on the factory shorts. |
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04-30-2013, 03:02 PM
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#13 |
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V8 Lounge member #2
Drives: 2001 Ws6 Join Date: Sep 2009
Location: Burbank,IL
Posts: 6,373
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Smirnoff can I get a bump?
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2001 ws6, 40k miles, Ls3 416 stroker, short block built by PER the rest by me. LPE Ls3 heads milled to 12-1 comp, FAST 102, NW 102, kooks 2", dual DMH cutouts, Magnaflow C/B, BTR cam + springs. Full UMI suspension.
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04-30-2013, 03:54 PM
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#14 | |
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Search Ninja
Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009
Location: Central Ark
Posts: 7,183
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Quote:
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2010 Black 2SS/RS A6
Halltech CF 102 fed GPI modded intake manifold Bo (knows) White ported TB Kooks LT's/ Dynomax VT Pfadted (springs/sways) Dyno tuned by Rhino and GPI I once parallel parked a train. |
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