NOWEEDS EXHAUST DIVERTER
 

Seriously thinking about getting this installed. Just looking for some feed back from anyone who has already installed. Talked to two ZL1 owners who both did the install and they absolutely LOVE IT! From what I've read it gives you anywhere from 20 to 30 more horsepower as well as the LOUDEST EARTH SHATTERING Exhaust note possible. Definitely will Rattle Every Window in the Neighborhood. Then with a press of a button you're right back to stock.

Wow, that's impressive! Their videos on the website sold me immediately. Husbands Birthday next month, love to sneak out "The Devil's Nightmare" and surprise him with this setup all installed. Matter of fact while I'm letting him drive I could reach over and press the button to "Wide Open" and hopefully he doesn't have an accident, literally or in the seat of his pants!

instead of doing this remember the ZL1 has valves in the tips, add headers and see how loud the car gets, then maybe you can wire in an exhaust controller that can give you a fully closed mode and fully open, no need for exhaust dumps like the noweeds

How does that compare price wise, the Noweeds is 950? It's also a very easy install, bolt on, so you could technically go back to completely stock if need ever be. Never looked into what headers would run installed, and once installed the volume level can't be lowered. The Noweeds with just a push of button You Are Back To Stock!

Anyway, thanks for your input. This is the kind of comments I'm looking for, the plus and minus sides, and then I can decide what I'll do. I just love the idea of being completely stock and with a push of a button its All Hell Breaking Loose!

If/when I do install the Noweeds I'll kick the Mild to Wild switch to the curb! The Noweeds sound is OUTRAGEOUS!

if you simply do a catalytic converter delete, the stock exhaust will also sound outrageous and can always sound tame when you shut the valves closed. Remember you have the mild to wild, what that does is either reverts to factory control or keeps the exhaust open the whole time.

You have to wire around the factory controller and go directly to the solenoid, there is a thread by ADM in the ZL1 performance section and he sells the product which offers a full closed and full open mode, very easy to install.

With that said, removing the cats will throw a check engine code unless you tune out the code, or get some O2 sensor emulator (something like that to truck the ECU)

I don't know much about the noweeds thing but those electronic motors in the valves usually get damaged, not sure what theyre running on that thing.

Hope this helps.

The problem with headers, IMO, is that you need a tune. If you are looking to keep your powertrain warranty, that's no going to work. With these, no tune is needed, thereby keeping your warranty intact. I have been thinking about the QTP cutouts, but after a friend paid to have them installed, they weren't much cheaper than the NOWEEDS diverters. I am just waiting on Normagene to try it out for us and post videos!

The more I've researched this the more I like their product. In the DIY section, a section solely on Noweeds, lots of good info. I should PM someone who did their install a couple years ago and see what they have to say about it and how it has help up over a couple years time. Time is always the real test of a product.

Great idea! Please keep us posted!

Do you have a sister Normagene?? Just kidding. I think it's a great idea if loud is what he wants. I'll be waiting to hear the runmble on youtube.: thumbup:

Oops, never crossed my mind "if loud is what he wants", oh well, LOUD IS WHAT HE'S GANA GET! Wow, I'm seriously excited, oh shoot I forgot again, this is his Birthday Present, well that's what I keep telling myself... hehehe...

Nice info

No-Weeds exhaust diverters NicKey Camaros
 

We use No-Weeds. Great product. Popular option on NicKey Super Camaros.

Love'n all the Great feedback. I'm definitely placing an order, for my husbands Birthday next month, well that's what I keep telling myself it for, and if he complains I'll just Go Wide Open and drown his whining out! Happy Birthday Baby!

Placing my order RIGHT NOW! Can't wait to do this install and rattle every window in the neighborhood! Thanks to everybody for all the feedback which has been 100% POSITIVE! Actually their home page video already sold me, but I really appreciate getting comments from owners of this setup. Thanks

let me know how you like it and post some vid after install !!!!!!

I have the noweeds system and love how they sound. They are stainless steel construction and nicely built.
Headers for me was not an option, I want to keep my warranty.
Cat delete, was also not an option, I have emmisions testing here in Washington
I like it that I can go stock or have a nice purrrr or loud and aggressive, to me it's a no brainer, no welding, installs easily in about three hours, and if I want I can put the old exhaust back in the car in twenty minutes.
I highly recommend Noweeds system for those of you that want it all, no more exhaust issues, if I don't like it! Push the button and I get the notes I like......

I have the KOOKS headers and cats, plus the NOWEEDS diverter. Man it's just like thunder.

my .02 this. the system is post cat's so 30hp is hard for my to buy into. It will be louder than stock for sure and should sound like a car with muffler deletes. I hear them all the time they sound decent.

as far as earth shattering loud hear again cats are still in place so it is all on your deffinition of loud but I don't find it earth shattering but then again I grew up racing 10 second cars with open headers.

my issue is the cost. I can buy longtubes for the money they cost and longtubes really do give you broad real power through the band.

the advantage is the control factor I suppose hos there is a programable setting.

I want optimum power for my money so I am having hard time spending $900 on these. that would buy me stainless power headers +ZR1 cam +springs.

Charlietuna; put down the microfiber towel for a minute and check out their video on the home page. The girl in the Black SS sold me right there on the spot. Put in my order today! Wow, I feel like singing Happy Birthday to my husband right now!
http://www.noweeds.net/

I hear ya and I understand what you're saying. Do the long tubes require a tune after install? And how about emissions? I just like this setup because I can literally go from stock sound to chainsawing the mufflers off in an instant, sound wise that is! Just check their homepage video. It sold me, and I understand its not the setup for everyone, but for me ITS PERFECT!

Any chance you could post a video of the system on your ZL1? I'd love to hear how it sounds.

Ditto :D

NicKey Camaro with dual valve diverters
 

That's really awesome.

Great video! Nice install job, looks really good. Love the sound, what a difference when you open the diverter. Should have mine real soon! Can't wait to install. Nice to have it up on a lift. Did you mount the controller under the seat? Seen some on the dash or in front of the shifter. I'll probably go with under the seat, could always move at a later date.
Attachment 530415

Thanks. We set this one up with a remote Key Fob.

Will you lose top end power? Will you gain power?

The thing about this video though, is that this car looks to have long tubes and a cam at minimum(I also can't spot cats but I'm blind). The volume isn't going to be nearly as loud as this on a bone stock ZL1.

Without anything else done to the car, I just can't see how the diverters would increase the volume much over stock with a fuse pull.

Hey Now,

Can anyone speak more to the probable power increase with these? They sound great if they are truly bolt on. Is the actuatot Battery poxered? Otherwis you would have to wire something in right?

Double reply. It's the 4th, so everybody must be partyin and not respondin. I'm at Work..arrrggghh.
I did some research on the reduction of backpressure with supercharged cars, and most people say it reduces power and boost.
I'm u
"un-technical", but if somebody knows anyting objective about that it would be appreciated.

Check out their website: www.noweeds.net. It will answer all of your questions. The video on the homepage of the girl in the black Camaro sold me right on the spot! Steve from Noweeds stated that HP increase can be anywhere from 15 to 35, although no dyno number have been run on a ZL1, which is what I ordered it for, and I should have it real soon! Nobody has complained of any power lost/top end. My research/PMs with those that have had the system for over three years and still working perfectly, have all responded 100% Satisfaction and highly recommend. That includes a few ZL1s although they have only had it a year or less, the ones I spoke with, and no problems, well one guy hit something and it knocked it loose. He added a few spot welds.

Our objective with the Noweeds dual valve diverters have been expressly to enhance the sound of the vehicle throughout its operating range.

Yes, they will enhance the sound of any V8 Camaro, some more than others.

In Dyno testing, with open diverters, we have generally experienced a higher peak HP number.

The video posted is of a NicKey Stage II S, and it does feature our Old Skool style Stage II Cam. It does have Hi-flow cats as well.

We have been using the systems since the first 5th gens rolled off the transporters and have logged tens of thousands of miles with no issues.

You say "V8 camaros" and 100s of miles on "5th Gens", but have you had a significant experience with specifically the ZL1 which is supercharged?

Yes, you can say that we have had some experience with ZL1s.

Just placed my order should have it frist week in August.

Personally I wouldn't put them on without headers or HF cats, because you will be very disappointed with the outcome with the OEM cats.

Is that because they are so restricted inside that it doesn't really matter what's downstream? I saw an old thread where somebody ur the ZL1 cat one and it is really restrictive to air flow.

Not true, they sound amazing!!!!!!! I have had them on for about 4 months now. I pretty much keep them open all the time! I have NO regret and they sure turn heads. People want to know what the heck all my mods are. All I have is noweeds and rotofab.

Car finally sounds like it looks - MEAN

You see there's the rub, mine are so loud with HF cats I can't drive with them open all the time. I've heard mine before and after the HF cats, and before they sound around 2X louder than the exhaust normally does.

Here's mine ...

auto...........why..............why........

Because I also have a manual SS, for when I want to row gears ...

Where's your auto ?