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Ive been so happy with my quiet Dynomax Super Turbo mufflers with LT1 tips (like the Magnaflows)
however, with my power goals (900 hp boost + spray) i think they will be a restriction
does anyone have a recommendstion on a low restriction straight-thru style muffler that fits the offset 2.75” tubing that wont annoy me and make me hate the car?
i thought about cut-outs, to have the best of both worlds but that adds complexity and reliability concerns
Ive been so happy with my quiet Dynomax Super Turbo mufflers with LT1 tips (like the Magnaflows)
however, with my power goals (900 hp boost + spray) i think they will be a restriction
does anyone have a recommendstion on a low restriction straight-thru style muffler that fits the offset 2.75” tubing that wont annoy me and make me hate the car?
i thought about cut-outs, to have the best of both worlds but that adds complexity and reliability concerns
I'm in the same boat. I love the sound of my Flowmasters but they are pretty restrictive. It is nice though that even with no cats and an X pipe there isn't really any drone. You can actually have a conversation with someone in the car without yelling.
I'm in the same boat. I love the sound of my Flowmasters but they are pretty restrictive. It is nice though that even with no cats and an X pipe there isn't really any drone. You can actually have a conversation with someone in the car without yelling.
same situation, i also take the car on long trips. I like to be able to hear the radio, talk to a passenger and ‘hear’ - not have my ears ringing when i get to my destination
I have the Corsa exhaust on my '95. The Inner tip is a straight through. The outer tip is a resonance chamber that has much less flow.
I don't know what type of sound you are looking for, but Corsa's are frequently stated as no drone.
I have Borla on my '96. The Borla's are a deeper tone than the Corsa's which I like better. I felt that the Corsa's were too quiet, but my wife (outside the car in the garage) commented about how loud it was when I started it. So perhaps it is only quiet inside the car.
I have the Corsa exhaust on my '95. The Inner tip is a straight through. The outer tip is a resonance chamber that has much less flow.
I don't know what type of sound you are looking for, but Corsa's are frequently stated as no drone.
I have Borla on my '96. The Borla's are a deeper tone than the Corsa's which I like better. I felt that the Corsa's were too quiet, but my wife (outside the car in the garage) commented about how loud it was when I started it. So perhaps it is only quiet inside the car.
Good luck with your choice.
corsa prob not a viable option for my goals.
not sure how much it would improve anything.
i know its twin 2.5” pipes are less than the 3” pipes I have on there now
can you get the Corsa mufflers or have to buy the whole system?
it also
annoys me how Corsa was $995 in 2001 and is now like $1800 today and they havent put any R&D into the system just the same old thing from 2001.
Ive been so happy with my quiet Dynomax Super Turbo mufflers with LT1 tips (like the Magnaflows)
however, with my power goals (900 hp boost + spray) i think they will be a restriction
does anyone have a recommendstion on a low restriction straight-thru style muffler that fits the offset 2.75” tubing that wont annoy me and make me hate the car?
i thought about cut-outs, to have the best of both worlds but that adds complexity and reliability concerns
I put 3" Dynomax Super Turbo mufflers on my car and thought they were too noisy. added 2 resonators and put removable inserts in mufflers to bring noise down.
I put 3" Dynomax Super Turbo mufflers on my car and thought they were too noisy. added 2 resonators and put removable inserts in mufflers to bring noise down.
im happy with the muffling of the dynomax super turbo. Note these are the long discontinued super turbo’s that were sold with the lt1 exhaust tips, (pn 17689 and 17690) so not sure if different than a standard dynomax super turbo .
im worried they are too restrictive for a 900 hp car
trying to see what else works . Ideally an offset inlet, straight-thru design center outlet (bonus if i can still weld on the lt1 rectangle tips to look stock and fit the hanger)
Last edited by dizwiz24; Feb 23, 2025 at 09:14 PM.
This is just my opinion, and a lot is based off of engine masters...... When talking 1,000 hp or so, I would want at least a 3in pipe, and straight through mufflers. Anything else is going to cost hp.
Here is one of their test on 2.5 vs 3.0 with straight through mufflers on a 600 hp 454.
Do a search on other test as well i.e. straight through vs baffled, etc.
not sure how much it would improve anything.
i know its twin 2.5” pipes are less than the 3” pipes I have on there now
can you get the Corsa mufflers or have to buy the whole system?
it also annoys me how Corsa was $995 in 2001 and is now like $1800 today and they havent put any R&D into the system just the same old thing from 2001.
Are you making the same wages you were in 2001? I think not. You claim to be an engineer. If you also claimed this in 2001, then you have no "R & D " and are, in 2025, "the same old thing".
Furthermore, inflation of inputs since 2001 in north america is roughly 3.5x since 2001.
If your numbers are right, then ironically they have done the thing you want them to do. They are selling for merely double, and yet their own per unit input costs have at least 3.5x’d. in my biz its 4x since 2001.
therefore. they are actually making lower profits, which they can do, ironically, for the exact reason you provide…because they have not had to invest further capital. THAT would force them to increase their sale price commensurately.
solution wise, what about some basic 3” straight throughs but with your own diy heimholtz resonance tubes welded on? best of both worlds?
Last edited by VikingTrad3r; Feb 24, 2025 at 09:33 AM.
Furthermore, inflation of inputs since 2001 in north america is roughly 3.5x since 2001.
If your numbers are right, then ironically they have done the thing you want them to do. They are selling for merely double, and yet their own per unit input costs have at least 3.5x’d. in my biz its 4x since 2001.
therefore. they are actually making lower profits, which they can do, ironically, for the exact reason you provide…because they have not had to invest further capital. THAT would force them to increase their sale price commensurately.
solution wise, what about some basic 3” straight throughs but with your own diy heimholtz resonance tubes welded on? best of both worlds?
charge more fine, thats inflation. But improve the product as technology improves. Not just keep it the same.
the power levels of modified cars has grown quite a bit since 2001.
one would think that corsa would continue to put R&D into their system to support todays cars power levels
Furthermore, inflation of inputs since 2001 in north america is roughly 3.5x since 2001.
If your numbers are right, then ironically they have done the thing you want them to do. They are selling for merely double, and yet their own per unit input costs have at least 3.5x’d. in my biz its 4x since 2001.
therefore. they are actually making lower profits, which they can do, ironically, for the exact reason you provide…because they have not had to invest further capital. THAT would force them to increase their sale price commensurately.
solution wise, what about some basic 3” straight throughs but with your own diy heimholtz resonance tubes welded on? best of both worlds?
Damned good economics here. Basic business stuff. Freaking love it.
Damned good economics here. Basic business stuff. Freaking love it.
and damned good business sense is also:
….suckers pay more and more $$$ for the same thing.
turn that pipeline off for them , and perhaps they’d put some R&D into the system to make it match their higher performance offerings for C5, C6, etc. instead of soldiering on with a 2.5” diameter system that is ok for a ‘stock’ powered C4
at one time corsa was evaluating a titanium exhaust for the c4 - but the rug got pulled out for us (even though they went on to offer a c5 titanium exhaust)
Last edited by dizwiz24; Feb 24, 2025 at 04:14 PM.
….suckers pay more and more $$$ for the same thing.
turn that pipeline off for them , and perhaps they’d put some R&D into the system to make it match their higher performance offerings for C5, C6, etc. instead of soldiering on with a 2.5” diameter system that is ok for a ‘stock’ powered C4
Have you ever read Atlas Shrugged? You might be interested in learning about how the movers and shakers actually work instead of bitching about them not making what YOU want at their cost.
Corsa has been acquired by Race Winning Brands.... which as of current owns about 60% of the hardcore race and a few performance street oriented automotive companies as well.
One good thing out of the acquisition, is that Corsa's RSC technology mufflers are now available in universal fitment.... $330 each.
With that level power output, anything beyond open headers is going to cost power.... 3" to the bumper is an honest -50hp and that's the minimum size exhaust I'd put under the car. With 900+hp everything is going to be loud... there's no muffling that amount of burned fuel and air.
Will
Have you ever read Atlas Shrugged? You might be interested in learning about how the movers and shakers actually work instead of bitching about them not making what YOU want at their cost.
/rant
Easy there ! U remind me of me 20yrs ago after i read RichDadPoorDad. Keep that pee & vinegar and go forth and build a biz.
We are all friends here. 👍
On the Corsa. I actually own a set for my Z and need to install. i have always wondered why there wasnt a cheap chinesium knock off (its simply a heimholtz yeah?) like there is in every other product.
@ Dizwiz whatever u end up doing for exhaust im interested in hearing about it
Last edited by VikingTrad3r; Feb 24, 2025 at 06:39 PM.
On the Corsa. I actually own a set for my Z and need to install. i have always wondered why there wasnt a cheap chinesium knock off (its simply a heimholtz yeah?) like there is in every other product.
whatever u end up doing
OBX is the Chinese knock off. Looks same, but not same.
at one time corsa was evaluating a titanium exhaust for the c4 - but the rug got pulled out for us (even though they went on to offer a c5 titanium exhaust)
The C5 system was expensive and they did not sell very many. If you think the standard Corsa system is expensive, you would gag at a titanium setup.
The bigger push from the C4 guys was a 3” Corsa system, Corsa did look into it, but they did not get the same results as the original system.
At the end of the day, Haibeck has tested the Corsa and B&B and the power difference was not found. Only thing the B&B provided with a 3” was additional noise and drone.
Performance mufflers that arent annoying.
