Brother bought 14 zl1.want it loud

[pabloss]

Hi everyone.my brother just bought a 2014 zl1 and he wants to know what exhaust,x pipe ,h pipe , straight pipe . He wants the car to be the loudest that in can get without headers and cats since we live in California we need to smog check.so can you guys please help. Any recommendations?

[GONMAD510]

I live in California too. I am running Kooks long tubes with no cats and a set of noweeds cutouts. It is extremely loud. If you want it loud without removing the cats or the stock manifolds get a set of cutouts. You can also do the fuse pull for the diverters in the mufflers.

[lbls1]

Believe it or not, our cars are pretty loud for stock. I would look into the fuse pull for the stock exhaust. You could also investigate other catback systems, but the NPP catback is an outstanding OEM exhaust. I would say that if you are not going for headers and keeping your cats, first try the fuse pull and see what you get.

[SSEssence]

Borla ATAK sounds pretty damn good

[WYKDZL1]

Buy a set of jba catless midpipes about 300$ it's a simple bolt on and off you can change them in about 1 hr in your garage on jack stands. Just put your cats back in when you go for smog. It will be extremely loud. I had to buy a Forza 3 way exhaust controller so I can keep mine locked in quiet mode sometimes.

[silversleeper]

Originally Posted by WYKDZL1

Buy a set of jba catless midpipes about 300$ it's a simple bolt on and off you can change them in about 1 hr in your garage on jack stands. Just put your cats back in when you go for smog. It will be extremely loud. I had to buy a Forza 3 way exhaust controller so I can keep mine locked in quiet mode sometimes.

Thank you for being conscientious about the noise. Had an uncorked ZL1 hammer the throttle next to me at night at a dangerous intersection. Ungodly amount of noise that startled me. About as funny as putting a train horn on your car and blasting people with it. There is such a thing as too loud, and the right place at the right time.
The NPP cutout exhaust is already loud when it opens up next to some one not expecting it, and worse if catless. Please be considerate and don't do the fuse pull mod if you drive in traffic.

[GONMAD510]

Originally Posted by silversleeper

Thank you for being conscientious about the noise. Had an uncorked ZL1 hammer the throttle next to me at night at a dangerous intersection. Ungodly amount of noise that startled me. About as funny as putting a train horn on your car and blasting people with it. There is such a thing as too loud, and the right place at the right time.
The NPP cutout exhaust is already loud when it opens up next to some one not expecting it, and worse if catless. Please be considerate and don't do the fuse pull mod if you drive in traffic.

That is what I like about my cutouts. I can close them and keep the car a little quieter. I did not do the fuse pull because it was not needed.

[pabloss]

Isn't straight pipes as loud as cut outs? Are iba catless mispipes loud with stock exhaust or with aftermarket exhaust?

[GONMAD510]

Originally Posted by pabloss

Isn't straight pipes as loud as cut outs? Are iba catless mispipes loud with stock exhaust or with aftermarket exhaust?

Mine is basically straight headers to cutouts. Close cutouts and it goes through the stock exhaust.

[pabloss]

Originally Posted by GONMAD510

Mine is basically straight headers to cutouts. Close cutouts and it goes through the stock exhaust.

Stock headers or aftermarket?

[GONMAD510]

Originally Posted by pabloss

Stock headers or aftermarket?

Kooks long tubes with cat delete pipes.

[pabloss]

Originally Posted by WYKDZL1

Buy a set of jba catless midpipes about 300$ it's a simple bolt on and off you can change them in about 1 hr in your garage on jack stands. Just put your cats back in when you go for smog. It will be extremely loud. I had to buy a Forza 3 way exhaust controller so I can keep mine locked in quiet mode sometimes.

Do you have stock exhaust and stock headers?

[WYKDZL1]

Originally Posted by pabloss

Do you have stock exhaust and stock headers?

I'm running factory headers factory npp exhaust believe me it's louder than anyone would need on the street. The first week I had it I was like I'm going to jail. Then ordered the Forza control. In quiet mode it's loud in loud mode it's stupid LOUD. I do have a cam though.

[WYKDZL1]

Follow me on Instagram@WYKDZL1 there's a few cool videos of my car you can hear. Idle video on there