Anyone have any input on aftermarket mufflers for a 65 corvette? I don't want the car to be quiet but also don't want it to be loud. The car is a not origianl car with a small block. Has anyone tried using turbo mufflers, flowmasters? Any ideas?
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Re: Mufflers?
Brian-----
If you "..don't want the car to be quiet" and you "...don't want the car to be loud" then I'd suggest using stock type Corvette mufflers. Exact reproductions are not available, but "reproductions" which should suit your purposes are. For a little louder than stock, use the "off-road" type "reproductions". These usually come with a welded-on rear pipe, as was original for GM #3845735 and 3845736.
"Reproductions" of the off-road system are available from Allens, Corvette Central, ****CO, Eckler's, and others.In Appreciation of John Hinckley -
Re: Mufflers?
Brian-----
If you "..don't want the car to be quiet" and you "...don't want the car to be loud" then I'd suggest using stock type Corvette mufflers. Exact reproductions are not available, but "reproductions" which should suit your purposes are. For a little louder than stock, use the "off-road" type "reproductions". These usually come with a welded-on rear pipe, as was original for GM #3845735 and 3845736.
"Reproductions" of the off-road system are available from Allens, Corvette Central, ****CO, Eckler's, and others.In Appreciation of John HinckleyComment
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Re: Mufflers?
Hello, His is a summary of my experience in exhaust systems. We have a 1970-LS5.
1. Flowmaster is loud, but not to bad. The real problem is resonance. After a 1 hour drive, you will continue to hear it for another hour. (This is only valid for the 2 stage system- never tried the 3 stage.)
2. Gibson- Don't even bother
3. Turbo mufflers- Moderate to bad resonance and somewhat loud.
4. I just replaced the Turbo mufflers with a complete factory style exhaust system from Corvette Central. I am very pleased so far. Sounds great at idle and NO resonance at cruise'n speed.Comment
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Re: Mufflers?
Hello, His is a summary of my experience in exhaust systems. We have a 1970-LS5.
1. Flowmaster is loud, but not to bad. The real problem is resonance. After a 1 hour drive, you will continue to hear it for another hour. (This is only valid for the 2 stage system- never tried the 3 stage.)
2. Gibson- Don't even bother
3. Turbo mufflers- Moderate to bad resonance and somewhat loud.
4. I just replaced the Turbo mufflers with a complete factory style exhaust system from Corvette Central. I am very pleased so far. Sounds great at idle and NO resonance at cruise'n speed.Comment
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Re: Mufflers?
Has anyone had any experience with the N-11 off-road exhaust system as far as resonance is concerned?We were getting ready to order a set for our 64 and wondered just how loud these are compared to stock or side exhaust.Comment
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Re: Mufflers?
Has anyone had any experience with the N-11 off-road exhaust system as far as resonance is concerned?We were getting ready to order a set for our 64 and wondered just how loud these are compared to stock or side exhaust.Comment
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Re: Mufflers / Sound ?
Don, this is a highly subjective opinion, but the N11's on my '65 365hp (GM's, not repros) are real *****cats. Nice rumble at idle and in the first few gears on city driving, but barely noticeable at highway speeds (3.36 rear). And this is on a big tank car, with no carpet out back, and the tank cover and cavity amplifies all noises coming from that area -- the road/tire, wind roar and normal rear end/wheel bearing/U-joint sounds exceed that from the exhaust system.
Convertibles (top down) sound entirely different, and you'll hear the exhaust a little more at legal speeds, but it's a throaty sound, and not at all objectionable.
My experience is that side exhaust cars (N14) are louder under all conditions than N11 cars, and small block N14 cars are louder (with a bark) and more tiresome on long trips than big blocks, which rumble.
It's been so long since I had standard exhausts that I can't compare.Comment
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Re: Mufflers / Sound ?
Don, this is a highly subjective opinion, but the N11's on my '65 365hp (GM's, not repros) are real *****cats. Nice rumble at idle and in the first few gears on city driving, but barely noticeable at highway speeds (3.36 rear). And this is on a big tank car, with no carpet out back, and the tank cover and cavity amplifies all noises coming from that area -- the road/tire, wind roar and normal rear end/wheel bearing/U-joint sounds exceed that from the exhaust system.
Convertibles (top down) sound entirely different, and you'll hear the exhaust a little more at legal speeds, but it's a throaty sound, and not at all objectionable.
My experience is that side exhaust cars (N14) are louder under all conditions than N11 cars, and small block N14 cars are louder (with a bark) and more tiresome on long trips than big blocks, which rumble.
It's been so long since I had standard exhausts that I can't compare.Comment
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Re: Mufflers?GM availibility
Brian-In Joe Lucia's response he mentions aftermarket off-road mufflers.As late as last year GM still stocked these parts.Check the dealer or better yet have a GM employee or retiree use the numbers to check the GM warehouse for stock at a employee discount.Regards,LouComment
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Re: Mufflers?GM availibility
Brian-In Joe Lucia's response he mentions aftermarket off-road mufflers.As late as last year GM still stocked these parts.Check the dealer or better yet have a GM employee or retiree use the numbers to check the GM warehouse for stock at a employee discount.Regards,LouComment
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Re: Mufflers?
Brian,
Since muffler sound so subjective, I'll add my subjective experience also, which is very similar to Wayne's.
I had side exhaust on my former 66 327/350 convertible and was completely satisfied with the sound at any speed. It was loud and at idle, "loped". It's the one favorite thing that I miss about the car.
I have N11 factory exhaust now on my 68 L89, (original N14 not factory option in 68), and as previously mentioned sounds good at idle and slow speeds but sounds more tame on the highway, even with 4:11 gears.
I would say if you want good sound either the N14 side exhaust or the N11 Off Road exhaust sound well for Corvettes. It really just depends what you want. If you want to maintain more of a "status quo" in a quiet neighborhood use the N11 Off Road. If you want to keep the full attention of the muscle car next door the N14 Side Exhaust will do the trick. TomComment
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Re: Mufflers?
Brian,
Since muffler sound so subjective, I'll add my subjective experience also, which is very similar to Wayne's.
I had side exhaust on my former 66 327/350 convertible and was completely satisfied with the sound at any speed. It was loud and at idle, "loped". It's the one favorite thing that I miss about the car.
I have N11 factory exhaust now on my 68 L89, (original N14 not factory option in 68), and as previously mentioned sounds good at idle and slow speeds but sounds more tame on the highway, even with 4:11 gears.
I would say if you want good sound either the N14 side exhaust or the N11 Off Road exhaust sound well for Corvettes. It really just depends what you want. If you want to maintain more of a "status quo" in a quiet neighborhood use the N11 Off Road. If you want to keep the full attention of the muscle car next door the N14 Side Exhaust will do the trick. TomComment
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Re: Mufflers?GM availibility
Yep, GM off-road rear pipes/mufflers were still available from GM last year at about $150 a side. They were no longer being manufactured (so I was told by Mr. Goodwrench) but still out there in the system, somewhere. About the best high-performance 2.5" muffler around and a pipe to boot.
A neat trick is to use a '73 hanger assembly on '70-72's to allow 'em to match up using the original hanger bracket welded to the muffler. I didn't invent this trick. I learned it from Gary in Houston.Comment
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Re: Mufflers?GM availibility
Yep, GM off-road rear pipes/mufflers were still available from GM last year at about $150 a side. They were no longer being manufactured (so I was told by Mr. Goodwrench) but still out there in the system, somewhere. About the best high-performance 2.5" muffler around and a pipe to boot.
A neat trick is to use a '73 hanger assembly on '70-72's to allow 'em to match up using the original hanger bracket welded to the muffler. I didn't invent this trick. I learned it from Gary in Houston.Comment
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