Tsp 2" headers
Thread Starter
Launching!
Joined: Jan 2007
Posts: 250
Likes: 1
From: LAS VEGAS, NV
Tsp 2" headers Wanted to see some y pipes or full exhaust set ups people are running with the 2" f body headers. I want to order a set and debating on how I want to run my y pipe.
from my understanding most ppl run the 1 7/8 and not the 2". IMO the 1 7/8 will be more than fine for your car, the 2" is more for all out drag cars that actually flow that much, take heed from texas speed's description on their site,
"Our 2.00" long tube headers are designed for the more extreme applications looking to make the most power possible."
Stock heads or even H/C/I cars on here don't need em, but again this is all IMO. Keep in mind you will need also need an aftermarket k member to clear them, and no out-the-box exhaust will mate up to them so you need a custom or fabbed setup so theres another can of worms you open besides the K-member.
1 7/8 will flow plenty well and make plenty of power
"Our 2.00" long tube headers are designed for the more extreme applications looking to make the most power possible."
Stock heads or even H/C/I cars on here don't need em, but again this is all IMO. Keep in mind you will need also need an aftermarket k member to clear them, and no out-the-box exhaust will mate up to them so you need a custom or fabbed setup so theres another can of worms you open besides the K-member.
1 7/8 will flow plenty well and make plenty of power
Last edited by usnfenix; Aug 23, 2016 at 04:06 PM.
Thread Starter
Launching!
Joined: Jan 2007
Posts: 250
Likes: 1
From: LAS VEGAS, NV
I have a tubular k member already and the car has been to the track more than the street the past few years. Figures for near the same price the 2" would be worth the extra few $
again its your build but its a header designed for the cars making the 700HP and above markers IMO. Its just plain overkill on anything else and I doubt you'd see much HP improvement if any over the standard 1 7/8 and certainly not worth the hassle of fitment for a marginal if any gain.
I have the 3.5" collector and run homeade duals. But with the 3" collector I believe you can run their regular Y pipe. Here is some vids of my car https://ls1tech.com/forums/drag-raci...arts-pile.html
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Really in my opinion the only time you need 2" headers is really all out big cube motors or of coarse a blower car, they love to get the air out, now if you already have a tubular k member and feel that one day you might go forced induction I would say go for it, if not I would stick with 1 7/8. You will have a little more back pressure and in turn some more low end tq you MAY pick up a FEW hp with the 2" but at what cost, loosing double the tq would hurt you more, just my opinion it isn't worth much lol.
Really in my opinion the only time you need 2" headers is really all out big cube motors or of coarse a blower car, they love to get the air out, now if you already have a tubular k member and feel that one day you might go forced induction I would say go for it, if not I would stick with 1 7/8. You will have a little more back pressure and in turn some more low end tq you MAY pick up a FEW hp with the 2" but at what cost, loosing double the tq would hurt you more, just my opinion it isn't worth much lol.
Exactly, just because you can doesnt mean you should. OP would regret it. I wouldnt even throw em on with plans for a blower in the future unless i was bolting the blower on as we speak lol, plans change.
there have been multiple threads proving that even 1 7/8 headers are too big for most people, multiple reputable builders and tuners dont recommend them until CID pushes over 400 or HP is getting to 700 and above. Yea it will make power and work but its not a biggest dick contest, just throwing the biggest intake and biggest header on there because its the biggest isnt the best idea unless the rest of the build matches. A properly setup stock cubes motor with 1 3/4 headers and a stock ls6 intake can blow the doors off a stock cubes 2" header and FAST 102 car that isnt setup right.
TECH Addict
Joined: Jul 2013
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From: Portland, Oregon
Unless you are going to have a cut-out directly after the Y-pipe, I think it is silly to put those nice free flowing 2" headers in front of a single exhaust. If you are worried about the extra flow 2" headers might give you, then you should absolutely be running true dual exhaust. For a blower, nitrous, and/or a 417ci build, all of those things could and probably would benefit from the larger headers.
there have been multiple threads proving that even 1 7/8 headers are too big for most people, multiple reputable builders and tuners dont recommend them until CID pushes over 400 or HP is getting to 700 and above. Yea it will make power and work but its not a biggest dick contest, just throwing the biggest intake and biggest header on there because its the biggest isnt the best idea unless the rest of the build matches. A properly setup stock cubes motor with 1 3/4 headers and a stock ls6 intake can blow the doors off a stock cubes 2" header and FAST 102 car that isnt setup right.
Get the 2"!!
Originally Posted by kinglt-1
There have also been multiple threads showing a stock LS1 making more power with a 1 7/8 over a 1 3/4...go figure. Get the 2"!!
Get the 2"!! I think the key word here is race car. I agree a max effort build the larger 1 7/8 is the way to go, but for the average street car on here 1 3/4 is the way to go, now since OP has posted his build I still say 1 7/8 but hey its not my build nor my car, OP good luck and hope you accomplish your goals.
It has been proven over and over in LS3 applications (5th Gen) for 2" headers to make more power across the board over a 1-7/8" even in a stock application. Once you throw nitrous into the mix it's a given. The only downside would be that clearance is tight with the 2" primaries in an F-Body.
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It has been proven over and over in LS3 applications (5th Gen) for 2" headers to make more power across the board over a 1-7/8" even in a stock application. Once you throw nitrous into the mix it's a given. The only downside would be that clearance is tight with the 2" primaries in an F-Body.
the back and forth in this thread is because we all thought OP had an ls1 with street car build