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05-24-2015, 03:38 AM
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#1 |
 Drives: 2015 SS Join Date: Apr 2015
Location: Sweden
Posts: 85
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Stock cat back, junk or good enough?
We have very strict dB limits during the track days and might try to make power on the stock cat back.
Anyone making power with longtube headers, cat delete and stock cat back? Better to find a aftermarket catback with big/effective mufflers? |
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05-24-2015, 03:52 AM
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#2 |
    Drives: 2010 Camaro 2SS Victory Red 6M Join Date: Apr 2015
Location: Gulf Coast, TX
Posts: 1,424
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I'm not sure how much power it can support, but I can tell you that the mufflers are a straight through design with a couple of chambers the exhaust sound bleeds into.
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2011 2SS 6A Red Jewel Metallic, Vararam Tune CAI, Magnaflow 3" Competition c/b, Speed Engineering 1-7/8 LT's, Circle D 5C, M/T 275/40R20 S/S, HPTuners tune by Ryan@GPI
12.3 @ 112 ACM as of 12/22/19 Gone on 12/28/19 R I P 2010 2SS 6M Victory Red/Black (old ride) CAI intake, Speed Engineering 1 7/8" LT's, X4 base tune, Flowmaster Outlaw axle-back. 12.6 @ 115 SAR as of 9/19/15 Gone but never forgotten. |
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05-24-2015, 04:47 AM
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#3 | |
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Drives: 2015 SS Join Date: Apr 2015
Location: Sweden
Posts: 85
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05-24-2015, 05:47 AM
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#4 |
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Drives: 2015 2SS/RS/1LE Join Date: Feb 2015
Location: Tucson
Posts: 866
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2.5"
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2015 SS/RS/1LE
HSA delete, VMAX throttle body, CAI inc. Intake, PRC255 heads, BTR 660 springs, BTR cryo-treated rockers, PAT G 232/240 .654/.626 110+2, johnson 2110's, Manton 502 pushrods, C5R, Melling high volume/high pressure, Powerbond 25% underdrive pulley, Proform covers, Kooks stepped headers, catless mids, Doug Thorley exhaust. 512rwhp, 446rwtq on a mustang dyno, tuned by Cunningham motorsports.  |
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05-24-2015, 06:28 AM
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#5 |
      
Drives: My wife crazy with my C5 usage. Join Date: Apr 2009
Location: DFW
Posts: 6,558
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LT's and a small can put me at 460rw through the factory cat back. (Very stingy Mustang dyno). It was 510 on a dyno jet.
I'm still running the factory h-pipe until next week and I'm over 600rwhp now. Sent from my iPhone using Tapatalk
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 UNDER CONSTRUCTION......again...... |
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05-24-2015, 07:29 AM
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#6 |
Drives: 2000 Camaro SS Join Date: Feb 2010
Location: Louisville, Ky.
Posts: 25,179
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The stock cat back sounds like crap but actually flows very well. Like 2010reddevil said, it has a straight thru design. You will not see any performance benefit with an aftermarket cat back (besides weight reduction) until you get into the 600+ hp range.
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05-24-2015, 08:03 AM
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#7 |
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Homeless Life Chose Me
Drives: LS3 (sold 4/21) Join Date: Nov 2014
Location: Streets of Philly
Posts: 3,650
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Yea the things heavy. Especially the auto tranny exhaust
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Pity a man in familiar places, who yet feels like a stranger.
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05-24-2015, 09:45 AM
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#8 |
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Drives: 2015 SS Join Date: Apr 2015
Location: Sweden
Posts: 85
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Thanks guys, great info! Sucks when it comes to weight... :( Any low weight quiet aftermarket systems? I hope the headers and de-cat will help to open up a bit of V8 music.
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05-24-2015, 09:54 AM
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#9 | |
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MY SS is SOLD
Drives: AGM 2012 Camaro 2SS/RS L99 Join Date: Mar 2012
Location: Southwest Illinois
Posts: 1,838
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Quote:
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CAI, Dynatech Headers, HF Cats, JRE Tuned, Corsa Cat Back, Strut Tower Brace.
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05-24-2015, 11:35 AM
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#10 |
 
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,019
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I dont think the stock catback sounds too bad.
https://youtu.be/OH4RTu3AZ88
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Retired wanna be cylinder head porter
2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X |
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05-24-2015, 11:54 AM
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#11 | |
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2013 VR Camaro 2SS/RS LS3
Small, but effective mod list: Roto-Fab Intake, TSP 2" Long tubes, TSP catless mids, MSD spark plug wires, stock catback, Elite Catch Can, APEX washer relocation and scoop, VMAX throttle body, Diablo InTune-Tuned by Matt@FSP, and a JacFab license plate bracket. |
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05-24-2015, 01:28 PM
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#12 |
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Drives: 2015 SS Join Date: Apr 2015
Location: Sweden
Posts: 85
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Thatīs pretty loud!
Thought it would be a lot more stealth on idle.
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05-24-2015, 09:30 PM
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#13 |
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Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,019
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Its no stealth. It will tell you real quick what its all about...
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Retired wanna be cylinder head porter
2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X |
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05-25-2015, 04:46 AM
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#14 | |
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Drives: 2010 Camaro 2SS Victory Red 6M Join Date: Apr 2015
Location: Gulf Coast, TX
Posts: 1,424
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Don't know if my ears are deceiving me, but it sounds like you have the same dreaded buzz/rattle that I do coming from your oem c/b.
Quote:
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2011 2SS 6A Red Jewel Metallic, Vararam Tune CAI, Magnaflow 3" Competition c/b, Speed Engineering 1-7/8 LT's, Circle D 5C, M/T 275/40R20 S/S, HPTuners tune by Ryan@GPI
12.3 @ 112 ACM as of 12/22/19 Gone on 12/28/19 R I P 2010 2SS 6M Victory Red/Black (old ride) CAI intake, Speed Engineering 1 7/8" LT's, X4 base tune, Flowmaster Outlaw axle-back. 12.6 @ 115 SAR as of 9/19/15 Gone but never forgotten. |
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