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10-03-2017, 09:40 AM
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#1 |
 Drives: 2015 Black Camaro 2SS Join Date: Aug 2017
Location: Baton Rouge, LA
Posts: 20
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LTs installed but exhaust too loud
Just installed a set of Speed Engineering LTs. Everything bolted up great and had a few issues with the steering knuckle but got it fixed finally. I have a pretty much straight pipes and no cats. My first question does not having Cats, or mufflers hurt the car? And does anyone know of a cheap method to quiet the car down because its ridiculously loud obviously.
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10-03-2017, 09:52 AM
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#2 |
           
Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012
Location: Vance Alabama
Posts: 8,019
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Straight piped headers is loud
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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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10-03-2017, 09:56 AM
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#3 |
 Drives: o Join Date: Jun 2017
Location: under a rock
Posts: 220
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I have long tubes and high flow cats with mufflers deleted. Its pretty loud but not horrible. I think the cats soften the noise a little bit.
Its all relative though. I like it loud. Some people don't. |
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10-03-2017, 10:02 AM
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#4 |
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Drives: 2015 Black Camaro 2SS Join Date: Aug 2017
Location: Baton Rouge, LA
Posts: 20
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Might have to get some high flow cats installed? Anyone know of a good place to get some at a good price?
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10-03-2017, 10:05 AM
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#5 |
Drives: 2012 2SS 45TH Anniversary Join Date: Mar 2012
Location: Kentucky
Posts: 720
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Your going to be loud. LT+mufflerless exhaust is going to create a lot noise. Cats may reduce somewhat but its the mufflers that reduce most of the noise. The only way to help with the noise is to add mufflers or purchase another exhaust system with mufflers. Your current setup will not hurt your vehicle but if you did not tune for the LT's you could start getting thrown O2 sensor codes which might cause your ECM to go into "limp mode".
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PFADT stage 3 suspension kit, SW LTH, SW cat less retro exhaust, MGW short throw, 3.91 gears, MRR Z28 wheels, Roto Fab CAI, SLP underpully, 255cc ported heads, TSP 229/236 Cam, ZL1 pump, Street Slayer Twin Carbon clutch, ID850 injectors, Snow Stage III Meth kit
480whp/460wtq tuned by Dynosty |
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10-03-2017, 10:05 AM
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#6 |
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Instagram: Sangstah
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Did the LTs with no cats trigger a check engine light? If so, you need a tune. Pretty easy to get cheap high flow cats directly from speed engineering or even throw some mufflers or a resonated x pipe on to quiet it back down.
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2019 SS 1LE - "CaSSandra" 2014 SS - "AleSSandra - Sold" 94 Z28 - Sold
 Follow the build https://www.camaro6.com/forums/showthread.php?t=612717 |
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10-03-2017, 10:32 AM
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#7 |
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Drives: 2015 Black Camaro 2SS Join Date: Aug 2017
Location: Baton Rouge, LA
Posts: 20
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Yes I had the car tuned after and no CEL showing at all.
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10-03-2017, 10:50 AM
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#8 |
Drives: 2015 Camaro 1SS L99 Join Date: Apr 2016
Location: Quad Cities, Iowa
Posts: 623
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Not trying to jack the thread - but Ive wondered how loud my setup will be next month with LT headers, HF cats, and SW retro catback. How would someone go about adding mufflers to an already aftermarket catback?
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10-03-2017, 12:23 PM
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#9 |
 
Drives: 2004 GTO & 2005 GTO Join Date: Mar 2014
Location: Lancaster, PA
Posts: 303
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Cheap method? Add mufflers.
You're not going to quiet down a straight piped V8 with high flow cats; you need mufflers of some sort. |
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10-03-2017, 02:40 PM
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#10 |
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Started#gottalovethatblue
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Cheap way to quiet it down, install the factory cat back on the car again. That will quiet it down.
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10-03-2017, 04:51 PM
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#11 | |
Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010
Location: Clermont, IN
Posts: 3,297
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Quote:
   
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10-03-2017, 05:55 PM
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#12 | |
Drives: Savitar; The 500rwhp N/A Monster! Join Date: Aug 2016
Location: Middletown, Ohio
Posts: 2,914
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Quote:
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*SOLD*504HP/433TQ | Night Fury cammed Cold Air Inductions intake Bo White ported TB Speed Engineering 1 7/8 longtubes NPP catback QTP low profile cutouts Powerbond 25% UDP 3.73 gears JRE scoop ZL1 grille R1 Concepts drilled/slotted rotors built/tuned by Weapon X Motorsports
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10-03-2017, 07:35 PM
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#13 |
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@LS.ACE
Drives: 2014 Chevy Camaro 2SS/1LE Join Date: Jan 2017
Location: North Jersey
Posts: 296
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Is there such a thing as too loud? (Asking for a friend)
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10-03-2017, 07:59 PM
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#14 |
Drives: 2ss/rs vr 6m Join Date: Mar 2009
Location: New Port Richey,fl
Posts: 2,831
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You need some good mufflers & some electric cutouts, make it loud when you want. I had that setup before, sounded great but to loud all the time.
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