LS3 resonators on L99?? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Hired Gun · 08-27-2012, 01:40 PM

I have LT's and the GM off road or race axel back. However I still have the L99 huge resonators from the lt's (no cats, and tuned) to the axel back. My question is, I have a set of short LS3 resonators from my muffler shop. Could I replace the L99 with the LS3 and gain better sound, or should I get an X pipe?

I like the sound now, but want it a bit louder.

Thanks in advance.
Jared

adamgl · 08-27-2012, 02:03 PM

I would think the LS3 would be better than the L99 junk, but X pipe would be what I would do.

The SwiftChancelor · 08-27-2012, 03:31 PM

Just had a similar problem. I have headers and Solo w/ j-pipes axleback exhaust. I had the L99 stock h-pipe which I thought had resonators( maybe it does). I thought in getting the resonated x-pipe it would be a little louder but not as loud as if I went with the Tru-x. Well, I was wrong, the resonated X isn't any louder than the stock L99's. If you have a LS3 setup I'd say use it, it's got to sound louder than the stock L99 otherwise I'd get the Tru-X. The resonated-x gives mine more of a muscle car sound but not as loud while I think a straight x-pipe gives more of a race car sound. Happy trails and good luck to you.

Jason@JacFab · 08-27-2012, 03:35 PM

I removed my stock LS3 resonators and installed a straight through X pipe at the same time, and noticed little, IF ANY difference in exhaust volume... I was really disapoiunted. This is with stock cats, and manifolds, with a dynomax #39494 axleback.

Hired Gun · 08-28-2012, 06:34 AM

Thanks guys. I will try it in a few weeks and report back. I just cant see spending money on an exhaust set up right now. I just want a bit louder. It should be louder since the L99 stuff is huge. If nothing else, VooDoo will have gone on a weight loss plan.

axis · 08-29-2012, 09:07 AM

If you choose to take the resonator off, you really need to put a crossover of some sort back on. It's been shown on a couple occasions that no crossover will lose HP and Tq. The X pipe is the most common crossover but you can put a H pipe on there too. I think the general consensus is that the X flows better than the H, although i've yet to see a comparison.

08-27-2012, 01:40 PM	#1
Hired Gun Wild Man Drives: 2010 Camaro Join Date: Sep 2010 Location: Milford, Ky Posts: 516	LS3 resonators on L99?? I have LT's and the GM off road or race axel back. However I still have the L99 huge resonators from the lt's (no cats, and tuned) to the axel back. My question is, I have a set of short LS3 resonators from my muffler shop. Could I replace the L99 with the LS3 and gain better sound, or should I get an X pipe? I like the sound now, but want it a bit louder. Thanks in advance. Jared __________________ 2010 Camaro Black with White Stripes, Jannetty Racing Roto-Fab CAI, VMAX Ported Throttle Body, Long Tube Headers, GMPP Axel Back, Emblem Pros Custom "VOODOO" Under hood Bow tie, Chrome Gill Inserts, HUD plate, Sparks Performance White SS front and rear Plate MPD-1 Spoiler

08-27-2012, 02:03 PM	#2
adamgl Drives: '98 Camaro Z28, '06 Z06 Join Date: Feb 2011 Location: Missouri Posts: 533	I would think the LS3 would be better than the L99 junk, but X pipe would be what I would do. __________________ '10 Camaro 2SS/RS A6 Sold :( ARH, FM Super 44's, K&N CAI, ADM scoop, Diablo Tune, RX catch can. '98 Camaro Z28 M6 TSP headers, true duals, AIR/EGR/AC/muffler delete, CAI, Subframe con., shock tower brace, Stg. 2 T56 rebuild. Monster Clutch Stg. 2, Electric Water Pump, TT2 wheels, 315 NT555's '06 Z06 2LZ, Cam, P/P/M Heads, FAST Intake/TB, ARH, CAI, HP Clutch/FW, C5 Axles, Pfadt Coilovers/Poly Bushings, Carbon Fiber: Everything, lol. HID's, 360 Forged Spec 5's/Invo's, Custom Interior. 550 RWHP http://www.camaro5.com/forums/showthread.php?t=235911

08-28-2012, 06:34 AM	#5
Hired Gun Wild Man Drives: 2010 Camaro Join Date: Sep 2010 Location: Milford, Ky Posts: 516	Thanks guys. I will try it in a few weeks and report back. I just cant see spending money on an exhaust set up right now. I just want a bit louder. It should be louder since the L99 stuff is huge. If nothing else, VooDoo will have gone on a weight loss plan. __________________ 2010 Camaro Black with White Stripes, Jannetty Racing Roto-Fab CAI, VMAX Ported Throttle Body, Long Tube Headers, GMPP Axel Back, Emblem Pros Custom "VOODOO" Under hood Bow tie, Chrome Gill Inserts, HUD plate, Sparks Performance White SS front and rear Plate MPD-1 Spoiler

08-29-2012, 09:07 AM	#6
axis Search Ninja Drives: 2010 Black 2SS/RS A6 Join Date: Oct 2009 Location: Central Ark Posts: 7,183	If you choose to take the resonator off, you really need to put a crossover of some sort back on. It's been shown on a couple occasions that no crossover will lose HP and Tq. The X pipe is the most common crossover but you can put a H pipe on there too. I think the general consensus is that the X flows better than the H, although i've yet to see a comparison. __________________ 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.

08-27-2012, 03:31 PM	#3
The SwiftChancelor Drives: SGM, 2011 2SS/RS, L99 Join Date: Oct 2011 Location: Wildcat Country Posts: 593 View My Garage	Just had a similar problem. I have headers and Solo w/ j-pipes axleback exhaust. I had the L99 stock h-pipe which I thought had resonators( maybe it does). I thought in getting the resonated x-pipe it would be a little louder but not as loud as if I went with the Tru-x. Well, I was wrong, the resonated X isn't any louder than the stock L99's. If you have a LS3 setup I'd say use it, it's got to sound louder than the stock L99 otherwise I'd get the Tru-X. The resonated-x gives mine more of a muscle car sound but not as loud while I think a straight x-pipe gives more of a race car sound. Happy trails and good luck to you. __________________ K&N air intake, Solo w/Jpipes axleback, SP 1 7/8 LT headers

08-27-2012, 03:35 PM	#4
Jason@JacFab Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008 Location: Central Point, OR Posts: 5,688 View My Garage	I removed my stock LS3 resonators and installed a straight through X pipe at the same time, and noticed little, IF ANY difference in exhaust volume... I was really disapoiunted. This is with stock cats, and manifolds, with a dynomax #39494 axleback.