Header sound question - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Homeless Man · 05-13-2015, 06:25 PM

All headers sound the same. 1 7/8 sound like 2 also. I have Longtube headers and no mufflers sounds good to me

JD-ZL1 · 05-13-2015, 06:27 PM

Quote:

Originally Posted by cal45

This will probably be a first....I am looking for stainless long tube headers w/high flow cats that are great quality & hp/tq gains but....not looking for the "loudest".

I currently have the "fuse pull" mod done on my ZL1 w/NPP and like how it sounds. I want to add headers for the performance gains but I do not want it to be extremely louder. Anyone have recommendations on what would be the "quietest" or do they all (AR, SW, Kooks) pretty much produce the same decibel increase?

Thanks for any help.

you might want to contact Ted at JRE, he sells several hp upgrade packages for the ZL1 along with headers and cats. He is a forum sponsor here on C5.

cal45 · 05-13-2015, 07:17 PM

Quote:

Originally Posted by JD-ZL1

you might want to contact Ted at JRE, he sells several hp upgrade packages for the ZL1 along with headers and cats. He is a forum sponsor here on C5.

Thanks but I have the pulley upgrade (& tune) planned, was just trying to see if one brand of long tube headers w/hi flow cats produce a tad less sound than other brands but its looking like the answer will be no as they are all pretty similar in regards to loudness.

NW Sam · 05-14-2015, 01:10 PM

I was also curious about an increase in interior noise?

rebelyell22 · 05-14-2015, 02:17 PM

Might want to wait a bit. Pfadt Tri-Y's are coming back.

jayno20 · 05-14-2015, 07:37 PM

Quote:

Originally Posted by rebelyell22

Might want to wait a bit. Pfadt Tri-Y's are coming back.

What's this mean? (For those who don't know)

JDP Sales · 05-15-2015, 12:43 PM

All long tube headers are going to sound about the same. I recommend the going with KOOKS.

As for not making any more power with headers, that is completely incorrect.. Sure you'll lose a pound of boost, but boost is simply a measurement of restriction. The engine will be running more efficiently and will make more power.

Here is a dyno from an M6 ZL1 we did a while back. Only mods were an K&N intake system and KOOKS 1-7/8 long tube headers with cats.

Back to the original question:

For the quietest setup, you could switch cat-backs to the Magnaflow ZL1 cat-back. It's quieter than the OEM cat-back, but much deeper and has a lot of bass to it.

You could also consider welding in a Magnaflow resonated X pipe in place of the factory H, but the differential cooler lines will have to be moved slightly.

Feel free to call, PM or email me anytime with questions.

Best regards,

Tyler
888-308-6007

AZ-ZL1 · 05-15-2015, 02:42 PM

Quote:

Originally Posted by cal45

Are you running shorty headers?

Nope, 17/8 LT's

cal45 · 05-19-2015, 06:50 PM

Quote:

Originally Posted by JDP Tyler

All long tube headers are going to sound about the same. I recommend the going with KOOKS.

As for not making any more power with headers, that is completely incorrect.. Sure you'll lose a pound of boost, but boost is simply a measurement of restriction. The engine will be running more efficiently and will make more power.

Here is a dyno from an M6 ZL1 we did a while back. Only mods were an K&N intake system and KOOKS 1-7/8 long tube headers with cats.

Back to the original question:

For the quietest setup, you could switch cat-backs to the Magnaflow ZL1 cat-back. It's quieter than the OEM cat-back, but much deeper and has a lot of bass to it.

You could also consider welding in a Magnaflow resonated X pipe in place of the factory H, but the differential cooler lines will have to be moved slightly.

Feel free to call, PM or email me anytime with questions.

Best regards,

Tyler
888-308-6007

Thanks for the info Tyler. Right now I'm planning the 10% pulley and ATI damper w/tune. Already have the Rotofab cai in. May consider the Kooks 1 7/8 down the road a bit. Not going too wild with this as it is my daily driver.

Have any idea what HP/TQ #'s an auto ZL1 with the above pulley/damper/RotoFab with tune would make at the wheels?

JDP Sales · 05-19-2015, 07:00 PM

Quote:

Originally Posted by cal45

Thanks for the info Tyler. Right now I'm planning the 10% pulley and ATI damper w/tune. Already have the Rotofab cai in. May consider the Kooks 1 7/8 down the road a bit. Not going too wild with this as it is my daily driver.

Have any idea what HP/TQ #'s an auto ZL1 with the above pulley/damper/RotoFab with tune would make at the wheels?

With the automatic, you should see about 500-520 with those mods.

Best regards,

Tyler
888-308-6007

cal45 · 05-19-2015, 07:06 PM

Quote:

Originally Posted by JDP Tyler

With the automatic, you should see about 500-520 with those mods.

Best regards,

Tyler
888-308-6007

Thanks. I was hoping that the pulley change w/tune and cai would have gotten me closer to 530ish.

ZO6 Bryan · 05-19-2015, 07:50 PM

Quote:

Originally Posted by G Money

Not the answer to your question but you will not get any performance gains from just adding headers unless you tune the car. You will loose boost by adding headers.

Yes, you may lose boost but still gain power. How many times does it take to beat people over the head with this idea. Boost does NOT equate to power. Make the engine flow better and boost will go down and power will go UP!

NW Sam · 05-19-2015, 11:19 PM

Boost is a measurement of resistance.

05-13-2015, 06:25 PM	#15
Homeless Man Homeless Life Chose Me Drives: LS3 (sold 4/21) Join Date: Nov 2014 Location: Streets of Philly Posts: 3,650	All headers sound the same. 1 7/8 sound like 2 also. I have Longtube headers and no mufflers sounds good to me __________________ Pity a man in familiar places, who yet feels like a stranger.

05-14-2015, 01:10 PM	#18
NW Sam Drives: 2017 ZL1 Garnet Red Join Date: Feb 2015 Location: NW Wa Posts: 354	I was also curious about an increase in interior noise?

05-15-2015, 12:43 PM	#21
JDP Sales Drives: Chevys at the limit Join Date: Nov 2010 Location: SLC, UT Posts: 9,621	All long tube headers are going to sound about the same. I recommend the going with KOOKS. As for not making any more power with headers, that is completely incorrect.. Sure you'll lose a pound of boost, but boost is simply a measurement of restriction. The engine will be running more efficiently and will make more power. Here is a dyno from an M6 ZL1 we did a while back. Only mods were an K&N intake system and KOOKS 1-7/8 long tube headers with cats. Back to the original question: For the quietest setup, you could switch cat-backs to the Magnaflow ZL1 cat-back. It's quieter than the OEM cat-back, but much deeper and has a lot of bass to it. You could also consider welding in a Magnaflow resonated X pipe in place of the factory H, but the differential cooler lines will have to be moved slightly. Feel free to call, PM or email me anytime with questions. Best regards, Tyler 888-308-6007

05-19-2015, 11:19 PM	#27
NW Sam Drives: 2017 ZL1 Garnet Red Join Date: Feb 2015 Location: NW Wa Posts: 354	Boost is a measurement of resistance.