1 7/8" or 2" headers? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

cybercoaster · 01-14-2015, 11:03 AM

I am looking to put some Kooks headers on my 2012 ZL1. Should I go 2" or 1 7/8" and what are the advantages over one vs the other? The only other mods I see would be a pulley since I will need a tune with headers anyway. A cam would be way down the road. Prob just a Corsa exhaust or something 6 months after the headers.

I planned on Pfadt Tri-y before they pulled the plug. Should I wait for those to come back?

Are there any installations issues with the Kooks for clearance? I seem to recall some having issues with the headers clearing the steering or something?

Thanks

EvilZL1 · 01-14-2015, 11:31 AM

Search the forum threads. Plenty of threads on this. I was in your shoes months ago before my ARH.

Sent from Wayne's Manor

nivek · 01-14-2015, 01:58 PM

Depending on your time frame, afe power is building the pFadt headers. They only have Corvette versions on their site, but I know there was a thread about them making the Camaro ones also.

IMPERIALBLUE2SS · 01-14-2015, 05:13 PM

2" if you throw more boost or mods at it you'll be happy you did

Stephen12ZL1 · 01-14-2015, 06:16 PM

<650rwhp 1 7/8". >650 rwhp 2"

2013 ZL1 #7860 · 01-14-2015, 09:40 PM

Quote:

Originally Posted by nivek

Depending on your time frame, afe power is building the pFadt headers. They only have Corvette versions on their site, but I know there was a thread about them making the Camaro ones also.

I saw that! Nice!

Were the Tri-y's 1 7/8 or 2 inch primary?

Based on my research and the extensive testing that JRE did (which is posted in this forum). The 2" is an excellent choice with almost no drawbacks, especially on a ZL1.

EDIT: Found the Link to JRE Testing
http://www.camaro5.com/forums/showthread.php?t=63640

ZL1-QTR · 01-15-2015, 12:19 AM

Quote:

Originally Posted by nivek

Depending on your time frame, afe power is building the pFadt headers. They only have Corvette versions on their site, but I know there was a thread about them making the Camaro ones also.

Anybody knows when they're going to be available?

JANNETTYRACING · 01-15-2015, 10:01 AM

Quote:

Originally Posted by ZL1-QTR

Anybody knows when they're going to be available?

I am direct with AFE as soon as they are available we will have them.

Last I checked they said possibly first quarter of 2015 tentatively sorry to be so vague.

Ted.

378ci · 01-15-2015, 04:21 PM

terry weeks from afe said behind vette a good date march 1to 15 his info came from aaron pfadt

shibbs · 01-15-2015, 04:25 PM

I went with 2". No regrets.

Those who say you lose torque are full of it.

Bo White · 01-15-2015, 04:33 PM

Imo any power adder application needs 2"

ss/rs/378 · 01-15-2015, 05:19 PM

I have 2" Kooks and Hi Flow Cats and 3" Corsa and freaking love the sound no drown nice and mellow on the highway until u floor it then the car just sounds pissed off as my brother puts it lol!!

hognutz · 01-15-2015, 05:57 PM

Quote:

Originally Posted by cybercoaster

I am looking to put some Kooks headers on my 2012 ZL1. Should I go 2" or 1 7/8" and what are the advantages over one vs the other? The only other mods I see would be a pulley since I will need a tune with headers anyway. A cam would be way down the road. Prob just a Corsa exhaust or something 6 months after the headers.

I planned on Pfadt Tri-y before they pulled the plug. Should I wait for those to come back?

Are there any installations issues with the Kooks for clearance? I seem to recall some having issues with the headers clearing the steering or something?

Thanks

if I would have bought a premium higher priced header I would have went 2". that being said this is one of those topics that gets over thought IMO they both will work fairly well.

To my knowledge kooks fit perfect, my stainless power fit perfect, Arh fit perfect.

if you really wanted phadt you may want to wait for the new production but you will be getting the first lot which can be a tad bit of a ristk. in all honestly I think you going to find most poeple are happy with any of the top three or 4 brands of headrs or CAI. there perfromance is just too similar and cars go fast with all of them.

you can find threads debating them but there are just mor than 1 good option out there and I am not sure you can go wrong with any of the big names. my buddy has ARH, I have stainless power neither one of us have any complaints.

378ci · 01-15-2015, 10:34 PM

what he said ?????????

01-14-2015, 11:03 AM	#1
cybercoaster Drives: 2017 2SS 50th Anv, 1972 RS Join Date: Mar 2009 Location: Oklahoma City Posts: 1,588 View My Garage	1 7/8" or 2" headers? I am looking to put some Kooks headers on my 2012 ZL1. Should I go 2" or 1 7/8" and what are the advantages over one vs the other? The only other mods I see would be a pulley since I will need a tune with headers anyway. A cam would be way down the road. Prob just a Corsa exhaust or something 6 months after the headers. I planned on Pfadt Tri-y before they pulled the plug. Should I wait for those to come back? Are there any installations issues with the Kooks for clearance? I seem to recall some having issues with the headers clearing the steering or something? Thanks

01-14-2015, 11:31 AM	#2
EvilZL1 Snake Eater Drives: 2012 AGM ZL1 Join Date: Oct 2011 Location: TN Posts: 2,737	Search the forum threads. Plenty of threads on this. I was in your shoes months ago before my ARH. Sent from Wayne's Manor __________________ Build Thread: http://www.camaro5.com/forums/showth...95#post8351295 Make sure you don’t forget to subscribe to my channel! More content on the way. Like, share with your friends https://www.youtube.com/channel/UC9Z...sP2wjsLLFeP1zQ Follow me on instagram: http://www.instagram.com/snkeatr/

01-14-2015, 06:16 PM	#5
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,809	<650rwhp 1 7/8". >650 rwhp 2" __________________ '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)

01-15-2015, 04:33 PM	#11
Bo White Drives: 2015 Summit White 2SS 1LE Join Date: Feb 2012 Location: Vance Alabama Posts: 8,019	Imo any power adder application needs 2" __________________ Retired wanna be cylinder head porter 2015 2SS 1LE Clutch reservoir, Vararam DRX, ported TB, TSP 2" headers, MGW shifter Totalled: 2010 1SS Wilkes Performance/Eagle 416 shortblock, TSP custom valvetrain, PRC 260 heads, Edelbrock Pro Flo 102, th400 swap, 8" PTC 5500 stall= 535/435 at the wheels tuned Gen 3 Performance and Dyno 10.97 @ 124 full weight in 3100 DA CamaroFest X

01-15-2015, 05:19 PM	#12
ss/rs/378 Drives: 2012 ZL1 Camaro Victory Red Join Date: Jan 2013 Location: Fort Wayne Indiana Posts: 333	I have 2" Kooks and Hi Flow Cats and 3" Corsa and freaking love the sound no drown nice and mellow on the highway until u floor it then the car just sounds pissed off as my brother puts it lol!! __________________ 2.55 UPPER PULLEY,100MM IDLER PULLEY,160 STAT,PORTED TB,PORTED SNOUT,MSD PLUG WIRES,NKG PLUGS,KENNE BELL EXTERNAL FUEL PUMP,2"KOOKS HEADERS,HIGH FLOW CATS,3"CORSA 60LB DEKA INJECTORS TUNED BY FROST 580RWHP,571RWTQ.

01-14-2015, 01:58 PM	#3
nivek Drives: 2015 ZL1 Black #100 Join Date: Oct 2014 Location: The Colony, TX Posts: 102	Depending on your time frame, afe power is building the pFadt headers. They only have Corvette versions on their site, but I know there was a thread about them making the Camaro ones also.

01-14-2015, 05:13 PM	#4
IMPERIALBLUE2SS Drives: 2010 imperial blue LS3 M6 2SSRS Join Date: Aug 2013 Location: Virginia beach Virginia Posts: 210	2" if you throw more boost or mods at it you'll be happy you did

01-15-2015, 04:21 PM	#9
378ci Drives: 13 vert zl1 gl 350 mb 2500 mega5.9 Join Date: Dec 2014 Location: bowling green ky Posts: 30	terry weeks from afe said behind vette a good date march 1to 15 his info came from aaron pfadt

01-15-2015, 10:34 PM	#14
378ci Drives: 13 vert zl1 gl 350 mb 2500 mega5.9 Join Date: Dec 2014 Location: bowling green ky Posts: 30	what he said ?????????