Headers? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

PWRHSEZL1 · 05-02-2013, 05:56 AM

I'm getting ready to get a set of Stainless power headers and I am wondering if there is any sound or gain differences between 2" & 1" 7/8 primaries? Any comments or suggestions will be appreciated!

Stephen12ZL1 · 05-02-2013, 06:27 AM

1 7/8" for less than 650rwhp 2" for more than 650rwhp. The reason is it will hurt your low end torque if you go with the 2" on a lightly modded motor. Get the 1 7/8"...they sound great.

hognutz · 05-02-2013, 07:17 AM

Quote:

Originally Posted by PWRHSEZL1

I'm getting ready to get a set of Stainless power headers and I am wondering if there is any sound or gain differences between 2" & 1" 7/8 primaries? Any comments or suggestions will be appreciated!

I think stainless power only comes in 1 7/8 and you have to buy stainless works to get the 2" primaries.

I would love to see a dyno of both tube sizes sometimes your average power does not change that much it just shifts the power in the band so to speak.

I am sure on a some 15psi, ported heads, cam, etc all out build 2" are the way to go but even then I don't know wha the HP loss by runing 1 7/8 wold be. 5hp 10hp?

PWRHSEZL1 · 05-02-2013, 01:56 PM

[QUOTE=hognutz;6495213]I think stainless power only comes in 1 7/8 and you have to buy stainless works to get the 2" primaries.

Good looking out, I completely missed that!

JDP Sales · 05-02-2013, 04:36 PM

Quote:

Originally Posted by hognutz

I think stainless power only comes in 1 7/8 and you have to buy stainless works to get the 2" primaries.

This is correct, at least for the time being. You will also want to pick up a new set of gaskets unless you want to reuse your old ones.

The 1 7/8 primaries are great for a lightly modified ZL1, and typically what we recommend.

Primary Size Choices:

1-3/4" Primaries up to 450 RWHP - Great Torque for lightly Modded Daily driver or road course racer
1-7/8" Primaries from 450-850 RWHP - Great Power for moderately mod to force induced beast
2" Primaries from 850+ RWHP - Great for maximum all out power, only recommended for the most extreme builds

Please feel free to call, PM or email me anytime with questions. We offer just about every header on the market. (At least the good ones) and have a few specials going currently.

Best regards,

Tyler
888-308-6007

05-02-2013, 05:56 AM	#1
PWRHSEZL1 Drives: 2013 Camaro ZL1 #2419 Join Date: Jan 2013 Location: Weatherford, Tx Posts: 289 View My Garage	Headers? I'm getting ready to get a set of Stainless power headers and I am wondering if there is any sound or gain differences between 2" & 1" 7/8 primaries? Any comments or suggestions will be appreciated!

05-02-2013, 06:27 AM	#2
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,816	1 7/8" for less than 650rwhp 2" for more than 650rwhp. The reason is it will hurt your low end torque if you go with the 2" on a lightly modded motor. Get the 1 7/8"...they sound great. __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

05-02-2013, 01:56 PM	#4
PWRHSEZL1 Drives: 2013 Camaro ZL1 #2419 Join Date: Jan 2013 Location: Weatherford, Tx Posts: 289 View My Garage	[QUOTE=hognutz;6495213]I think stainless power only comes in 1 7/8 and you have to buy stainless works to get the 2" primaries. Good looking out, I completely missed that!