02-23-2015, 03:14 PM
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Stock muffler mod...
07-17-2017, 12:35 PM
#761
I agree with that part. Mine came with Dynomax axle-backs, and the sound was fine except for the highway drone. I couldn't justify the cost of Borla or Corsa axle-backs just to solve the drone, and I didn't want to mess with putting in the kit for NPP (car didn't come with it originally). So I reverted to stock. I admit I kind of miss the throaty growl around town, but I definitely love the car more now that it doesn't drone. That was a big-time buzz kill.
07-17-2017, 01:25 PM
#762
Drifting
The question doesn't really deserve a response, but I'll bite. Although I'm far from a broke teenager, I have never lost my sense of value. To me, not a single axle-back exhaust system available for the vette is worth half of what they ask for them. That being the case, an easy and visually non-detectable modification to the stock system which costs next to nothing and yields good results was a no-brainer for me.
Now I will say that some of the mods I see are a bit ridiculous. When I bought my car, the previous owner had put chrome mesh inside the fender gills and lined the gills with chrome trim (black car.) That crap had to go.
Now I will say that some of the mods I see are a bit ridiculous. When I bought my car, the previous owner had put chrome mesh inside the fender gills and lined the gills with chrome trim (black car.) That crap had to go.
One of my first cars came with three different brands and two different size tires. My current ride was supposed to come with a car cover. Probably on some "technician's" '95 golf, protecting that sweet, sweet spraypaint finish.
08-02-2017, 11:37 AM
#763
Heel & Toe
Drilled my stock mufflers with 1 1/8 inch hole saw the other day. All in all not a bad sound. I was surprised at how much louder it became. In the car with the windows up I couldn't hear the exhaust over the engine and road noise before I drilled them. Now I can "hear" the car. Much happier! Can't wait for the temps to go down so I can take the top off.
08-02-2017, 02:39 PM
#764
Drifting
yea, did mine years ago..first mod....it's pretty awesome mod for like 60 bucks.
but after a while, you outgrow this mod and need more rumble.....
but after a while, you outgrow this mod and need more rumble.....
08-25-2017, 09:57 PM
#767
02-26-2018, 12:02 AM
#768
Cruising
I have been wondering about this because lately I've been hearing a weird rumble/vibration coming from the rear every time I'm at red light. I have a 2008 auto with tsp long tubes, x pipe, and stock mufflers. I've been having that same setup since last year in March and up till now I haven't had any problems except the weird noise I'm talking about. Do the stock mufflers tend to wear out faster if their equipped with headers and a bigger xpipe??
Last edited by Corvette08ls3; 02-26-2018 at 12:03 AM.
02-26-2018, 12:16 AM
#769
Instructor
There’s a spring mount on the exhaust pipe that can rattle. That’s what I’ve found on mine. You got to get it on a lift or the rear wheels on ramps to see it.
The following users liked this post:
Corvette08ls3 (02-26-2018)
02-26-2018, 06:40 AM
#770
Racer
02-26-2018, 09:10 PM
#771
Cruising
So you had the same problem too? And thanks I'll check it out. I've seen that spring mount before and on mine it's holding the xpipe, I assume it's the same for anyone else right? Other than that do you think I should do the muffler mod that's mentioned here or just buy aftermarket mufflers?
02-26-2018, 09:30 PM
#772
Instructor
So you had the same problem too? And thanks I'll check it out. I've seen that spring mount before and on mine it's holding the xpipe, I assume it's the same for anyone else right? Other than that do you think I should do the muffler mod that's mentioned here or just buy aftermarket mufflers?
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Corvette08ls3 (03-11-2018)
02-28-2018, 03:21 PM
#773
03-11-2018, 11:50 AM
#774
Cruising
There’s not enough tension on my spring so it rattles. Really annoying. But at least I know it’s not major. Just haven’t got around to fixing it. I did the hole in the muffler mod first. Satisfied for a bit but not long. I ended up with long tube headers, catted H pipe, NPP mufflers and s tune. I think it costs around $2500 installed. The first thing I did was the NPP mufflers. Sounded great open but wanted more after a while. That’s when the headers and H pipe went on. It’s really loud open and nice closed. I did 2 years of research and ended up doing what I was told first. Wish I would have done it when I first got the car. But, $2500 was a gamble I couldn’t afford to lose.
Cool thanks man and yeah it was the spring that was loose on mine too but I got that fixed so it should be good now. The next thing I'm going to do is replace my mufflers with an aftermarket set. Other than that I'm getting a weird pulsation on the gas pedal whenever I'm accelerating from 1st gear to 4th gear. I've never had that pulsation before until now so I'm wondering if that's normal or if I should be concerned.
07-31-2018, 07:42 PM
#776
Racer
Ok, so I took the plunge, I will preface this with the fact that I think 400hp is plenty, so i wasn't looking for any HP gain, just make my vette sound like its not a kia, so I did this muffler mod
Tools required:
Drill
1 1/2" Hole Saw
3/4" Hole Saw
8" #8 self tapping screws (I chose hex head)
2 - 2 1/4" round sheet metal patches
Optional:
Zinc primer
flat black paint
On the lift ready to start
Attachment 48159266
Holes Cut, outter hole is a 1 1/2" the inner hole is 3/4"
Attachment 48159267
Patches cut from the bedside of a '09 GMC,
Patches are painted with this
Self tappers being screwed in
Attachment 48159268
Almost done
Attachment 48159269
Scotchbrite
Attachment 48159270
Final step, dupont satin bumper paint matches the stock perfectly
Attachment 48159271
This mod is AWESOME, it cost me nothing, and I personally think it sounds better then many aftermarket exhaust...there is ZERO drone. It is not loud like the stingers or bullets, but its not quiet like stock, best of all its wife approved.
Ease: 1/10 Super easy
Results: 10/10
Hope this helps anyone who is thinking about it.
Tools required:
Drill
1 1/2" Hole Saw
3/4" Hole Saw
8" #8 self tapping screws (I chose hex head)
2 - 2 1/4" round sheet metal patches
Optional:
Zinc primer
flat black paint
On the lift ready to start
Attachment 48159266
Holes Cut, outter hole is a 1 1/2" the inner hole is 3/4"
Attachment 48159267
Patches cut from the bedside of a '09 GMC,
Patches are painted with this
Self tappers being screwed in
Attachment 48159268
Almost done
Attachment 48159269
Scotchbrite
Attachment 48159270
Final step, dupont satin bumper paint matches the stock perfectly
Attachment 48159271
This mod is AWESOME, it cost me nothing, and I personally think it sounds better then many aftermarket exhaust...there is ZERO drone. It is not loud like the stingers or bullets, but its not quiet like stock, best of all its wife approved.
Ease: 1/10 Super easy
Results: 10/10
Hope this helps anyone who is thinking about it.
04-25-2019, 11:31 AM
#777
Burning Brakes
Think I am going to try this next. I have an axle back system (NPP, Corsa) on the want list, but if I can get by with this I can look at getting some other things on the list instead (Head Unit, ZR1 Splitter and skirts...) Can't hurt!
Will do a before and after video.
Will do a before and after video.
Last edited by SPSandman; 04-25-2019 at 11:31 AM.
06-12-2019, 03:55 PM
#779
Le Mans Master
I did this mod a few years back because I had a C5 that I put the Mid America system on and loved it. I started looking at aftermarket for the C6 and was not sure what I wanted. I knew from experience and a friend who had the Corsa system on his C6 it was not for me. I have listen to a few different exhaust and just cannot make up my mind. this works as a stop gap and I have actually had people ask what system I have. It helps I'm sure that I have the ARH and hi-flo cats.
06-13-2019, 12:04 PM
#780
Burning Brakes
I ended up doing this. It makes it bassier and adds a good bit of gurgle and a bit of pop on deceleration and sounds good at WOT. Not much if any drone. Know some people complain about drone and I am not sure it is the same as when I think of it. I have had drone in cars where it almost resonates through the whole car and gives it an odd vibration along with the sound.
At cruising speed the sound is a bit muffled and is a different tone. Almost like a european sound but definitely not 100% sold on the sound. It is good and differnt but I did it because I am planning on doing a muffler upgrade in the fall/winter to get more of the sound I want.
I have made a couple recordings of the drive, but need to get them online to post here.
At cruising speed the sound is a bit muffled and is a different tone. Almost like a european sound but definitely not 100% sold on the sound. It is good and differnt but I did it because I am planning on doing a muffler upgrade in the fall/winter to get more of the sound I want.
I have made a couple recordings of the drive, but need to get them online to post here.