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Old 05-30-2009, 10:59 AM   #71
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Sounds good! Am I the only one who thought a muffler-less system would sound louder?

Also for those clamoring for dyno numbers, I dont think the numbers would increase all that much considering total airflow has not really been increased, only exhaust flow (at the expense of backpressure, mind you). That's assuming the engine is sucking in air as fast as the stock paper filter allows (unless you already did that and I can't read).

Cold air intake, plus removing the mufflers, and I would expect a bigger increase in gains.
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Old 05-30-2009, 11:11 AM   #72
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Sounds good! Am I the only one who thought a muffler-less system would sound louder?

Also for those clamoring for dyno numbers, I dont think the numbers would increase all that much considering total airflow has not really been increased, only exhaust flow (at the expense of backpressure, mind you). That's assuming the engine is sucking in air as fast as the stock paper filter allows (unless you already did that and I can't read).

Cold air intake, plus removing the mufflers, and I would expect a bigger increase in gains.
Im with you, of course muffler less is gonna be louder, now if you add LT's and remove cats that will definately be louder. But Ithink numbers will slightly increase because you are decreasing restriction, which is adding flow. Im sure the stock filter is capable of a few more cfm than what its doing now.
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Old 05-30-2009, 11:23 AM   #73
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Look if you want your exhaust warranty you leave it on. If you take it off it will never wear out so you gain a lifetime warranty.
Since you welded on "Aluminized Steel" pipes to the factory 409 S.S. pipes, those muffler eliminator pipes will rot out twice as fast as the factory 409 S.S. mufflers due to attaching dis-similar metals.

Now if your exhaust shop can do this same thing with 409 pipe, I will agree that the life of the exhaust system should be extended.

Another thing to consider is these huge factory mufflers are part of the car's rear collision crumple zone and without them it is possible that you are compromizing your safety (or at least rear seat passenger safety) if you were ever to get rear-ended.

Now please don't take my comments the wrong way ... I am in no way against this type of mod, and this in particluar was executed perfectly and sounds much better than most muffler deletes I've heard. Just wanted to point out a couple of concerns that may be of importance to some readers.

Thanks for posting it and taking the time to do all the videos ... a job well done !!

Doug
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Old 05-30-2009, 11:26 AM   #74
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gotta drop that clutch a lillllll fadster.. ur gonna wear it... SOUNDS AWESOME THOUGH!! NICEE
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Old 05-30-2009, 12:06 PM   #75
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LS/LT/SS cars all have true duel exhaust w/ an X-pipe. And yes, the cats (2 per bank, 4 total) do muffle the car a bit.
Everything I've seen and heard points to the Camaro having a stock H-pipe.


I don't know if the absence of the mufflers will affect the design of the structural crumple zone but I agree 100% the metals need to match.
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Old 05-30-2009, 12:25 PM   #76
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I wonder how the V6 would sound with this mod?
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Old 05-30-2009, 12:41 PM   #77
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I wonder how the V6 would sound with this mod?






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Old 05-30-2009, 12:59 PM   #78
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pipes

If they weighed about 15 lbs each, how much did the factory pipes weigh that were removed/replaced? Just would like to know how much total weight was actually reduced. Sounds great. They will have to add another sign in our city besides the NO Engine Brakes from trucks.
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Old 05-30-2009, 06:06 PM   #79
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Another thing to consider is these huge factory mufflers are part of the car's rear collision crumple zone and without them it is possible that you are compromizing your safety (or at least rear seat passenger safety) if you were ever to get rear-ended.

Doug
Do you have proof of this, or is it just a guess? I have trouble believing that mufflers are a part of a structural crumple zone. That would mean if you changed to any aftermarket muffler you would change the effect of the zone. But being how it’s not a fixed part of the body it doesn’t seem plausible.
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Old 05-30-2009, 06:25 PM   #80
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Sounds good! Am I the only one who thought a muffler-less system would sound louder?

Also for those clamoring for dyno numbers, I dont think the numbers would increase all that much considering total airflow has not really been increased, only exhaust flow (at the expense of backpressure, mind you). That's assuming the engine is sucking in air as fast as the stock paper filter allows (unless you already did that and I can't read).

Cold air intake, plus removing the mufflers, and I would expect a bigger increase in gains.
No I have not change the air intake yet. However that is one thing I also think would really help out. Air intake and straight pipes would at most give you 5 to 10 HP in a real world dyno. But if you break it out by cost of mod for HP gained after an Air Ram intake you could get 1 HP for each 50.00. Not bad in the world of things. Add a tune and I would think that gains would be very comperable to what the high dollar mods are getting. I have to throw this out there as my opinion. This is most definately not a mod for the l99 motor. The tuning required for the kickdown system to keep it from sounding like crap when only running on four cylinders would make this not work. It is possible that a good sound could be achieved in the V6 though. I would more than likely add a big resonator to bring the tone down to a lower deeper sound. If you go in with a budget that allows for upgrades then cut the mufflers off and see where you are starting from. If it works for you go for it. If you dont like it then throw some other aftermarket parts at it.
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Old 05-30-2009, 06:32 PM   #81
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gotta drop that clutch a lillllll fadster.. ur gonna wear it... SOUNDS AWESOME THOUGH!! NICEE
No sh%*. Of course the camara had to be on to boot. I have been so busy playing does anyone know how to turn off the traction control BS so it does not bog it down on takeoffs? I suppose I could read the book but who has time when you have a toy to play with. You would have to see me tee off a golf ball to understand that I cant perform under that type of pressure..lol
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Old 05-30-2009, 07:06 PM   #82
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Larry, I'd wait until you have a few miles on her before you drive it properly.
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Old 05-31-2009, 12:46 AM   #83
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Larry, I'd wait until you have a few miles on her before you drive it properly.
Geez, I already have 650 miles on him, Have changed the oil once at 350 miles and kept it under 4000 rpm for the first 450 miles. I have driven him at different speeds and now its time to let it settle in to the life it is going to know and live. lol I am so glad I dont live in a high density residential area. Plenty of room for the horses to play!
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Old 05-31-2009, 02:59 AM   #84
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now why would you want to do this when you can spend $1500 on a borla and get the same performance? LOL
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31000 for ss1 no options and who in the hell would buy a SS1 V6 for kids SS1 for girls LS3 the only way to go G8 Gxp 200lbs more my bad so lets think here 200lb more 27 less hp so 5 tenths slower now 373 gear now mabe 3tenths slower 4 door car sad so so sad
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