Jump to content

Sign in to follow this  
rusty01

Headers, how much gain??

Recommended Posts

Decided to make a new thread about headers. So I am looking for ways to add some umph to my truck. I have seen that long tube headers can add low end torque and HP. Anyone run with these types of headers? What kind of power gains have you seen? Hooked to stock exhaust or full custom?

Edited by rusty01

Share this post


Link to post
Share on other sites

I don't, so I can't answer directly. But... adding anything that changes the breathing pattern on a motor should be tuned afterwards. Otherwise, you're hurting more than helping... imho.

Share this post


Link to post
Share on other sites

a tune isnt need for longtubes,but with a tune youll see even a bigger gain.If you do this setup longtubes,ORY=offroad ypipe,highflow cat or no cat with a spintech muffler dumped,and K&n filter without a tune you should see an easy 25hp to the wheels thats about 40hp to the flywheel and with a tune depending on which company tunes it 35hp to the flywheel maybe even more.Plus a TR220 cam you got yourself a fun truck.

  • Like 1

Share this post


Link to post
Share on other sites

if i already had the tune done, then add headers, will i need a retune?

Share this post


Link to post
Share on other sites

if i already had the tune done, then add headers, will i need a retune?

 

 

Typically, yes. I am not one of those that thinks simply adding headers will give you noticable power gains, even with a tune afterwards. That would be sort of like "free horsepower". The difference in sound may make you feel like it is faster, but I am not a believer.

Share this post


Link to post
Share on other sites

Headers alone should give you around 25-30 hp. I know a felt a pretty big difference once I got mine on and with a tune, it was night and day. HUGE upgrade right there.

Share this post


Link to post
Share on other sites

So i wont feel a gain switching from these http://www.classicindustries.com/images/productimg/e/emsb12r.jpg to these

http://www.hawkinsspeedshop.com/exhaust-headers/images/401-911201pdynatech3.jpg... I noticed a night and day difference on my vortec 350 ATLEAST a 25hp+ gain before the custom tune.On another forum i also go on the same setup same motor without a tune put down 260hp and 324ftlbs.No i said get a tune because the stock one leaves a lot on the table,I wouldnt retune for headers.Now with that being said the LS motors have shorty headers stock pretty much so yes switching to short tube headers will not gain anything but longtubes def will.

Share this post


Link to post
Share on other sites

Headers alone should give you around 25-30 hp. I know a felt a pretty big difference once I got mine on and with a tune, it was night and day. HUGE upgrade right there.

 

 

No way headers alone give you that much more HP, thats almost funny. On stock motors headers do nothing for HP and may hurt HP numbers. I guess because the exhaust is louder must mean instant HP increase. :lol: People need to stop reading the box the aftermarket parts come in. Hell if I went out and bought a performance air filter,headers exhaust, performance muffler, CAI I should see about another 200 HP according to the info on all the boxes I love when people put high flow cats on there exhaust, all cats are high flow from the factory where the vehicle is made..

Edited by Silverado4x4

Share this post


Link to post
Share on other sites

Headers alone should give you around 25-30 hp. I know a felt a pretty big difference once I got mine on and with a tune, it was night and day. HUGE upgrade right there.

 

 

No way headers alone give you that much more HP, thats almost funny. On stock motors headers do nothing for HP and may hurt HP numbers. I guess because the exhaust is louder must mean instant HP increase. :lol: People need to stop reading the box the aftermarket parts come in. Hell if I went out and bought a performance air filter,headers exhaust, performance muffler, CAI I should see about another 200 HP according to the info on all the boxes I love when people put high flow cats on there exhaust, all cats are high flow from the factory where the vehicle is made..

 

to each their own,i can back up post 100%.

Share this post


Link to post
Share on other sites

Headers alone should give you around 25-30 hp. I know a felt a pretty big difference once I got mine on and with a tune, it was night and day. HUGE upgrade right there.

 

 

No way headers alone give you that much more HP, thats almost funny. On stock motors headers do nothing for HP and may hurt HP numbers. I guess because the exhaust is louder must mean instant HP increase. :lol: People need to stop reading the box the aftermarket parts come in. Hell if I went out and bought a performance air filter,headers exhaust, performance muffler, CAI I should see about another 200 HP according to the info on all the boxes I love when people put high flow cats on there exhaust, all cats are high flow from the factory where the vehicle is made..

 

 

Yeah none of that would matter since you would then need your truck tuned for the benefits....

Share this post


Link to post
Share on other sites

I run a 13.55 in the qtr mile with those mods in my sig on 20's with 3:42's. Nahhhh, none of these mods help. Yall just keep saying that to yourself. :ughdance:

Edited by 11Silvy

Share this post


Link to post
Share on other sites

I run a 13.55 in the qtr mile with those mods in my sig on 20's with 3:42's. Nahhhh, none of these mods help. Yall just keep saying that to yourself. :ughdance:

 

 

The OP was asking about long tube headers only. Are you getting that result with just long tube headers?

Share this post


Link to post
Share on other sites

I run a 13.55 in the qtr mile with those mods in my sig on 20's with 3:42's. Nahhhh, none of these mods help. Yall just keep saying that to yourself. :ughdance:

 

 

The OP was asking about long tube headers only. Are you getting that result with just long tube headers?

 

 

And so was I, but this thread got derailed. I am getting that result from the mods in my signature.

Share this post


Link to post
Share on other sites

you should be happy running a 13.5 in that tank.My obs 2500 weighs 4650lbs without me in it.And BTW my results were on my trucks which is a 2000 OBS and a 99 5.3L.Im not sure how the NNBS react to longtubes.should have posted that before.

Share this post


Link to post
Share on other sites

you should be happy running a 13.5 in that tank.My obs 2500 weighs 4650lbs without me in it.And BTW my results were on my trucks which is a 2000 OBS and a 99 5.3L.Im not sure how the NNBS react to longtubes.should have posted that before.

 

 

I'm pretty happy. I can beat alot of cars with that time and suprise the hell out of new 5.0 mustangs, camaros, whatever else that is around those low 13 high 12 sec speeds. If I drop a cam in it, I will be able to beat them. LS motors love to breathe and with the l92 (l9h engine) heads coupled to these headers, it really woke it up and that's pre-tune. The stock exhaust system wasn't restrictive, but three cats did slow it down some. ARH headers are piece of artwork.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

Sign in to follow this  

  • Similar Content

    • By myGMC2
      All -
       
      I have for sale the Borla Cat Back Exhaust in Touring Edition just like what is listed on the Borla Site: PN 140535.  I had this installed new from the factory, so it has the special exhaust tube with the expansion joint and bypass for V4 mode.  The Touring is a fantastic rumble and growl... I would call it just the right amount of deep sound perfection. You won't believe how nice it sounds over factory exhaust until you try it.
       
      It is in great shape (almost like new) as you can see from the Pics, I polished the tips and the muffler to show you just how clean it really is. The rest of the tubes were left as is, since you will be installing it and getting it dirty anyway. I live in South GA for Pickup, 30 min north of Tallahassee.
       
      Price is $800 if I ship it, or $700 local pickup. Let me know if you have any questions !
       
      Link to Hear the sound:
      https://www.borla.com/products/silverado_sierra_1500_catback_exhaust_touring_part__140535.html





    • By JK29
      I have a 2016 Silvarado LTZ Z71 4x4 with the 8 speed... About 13,500 miles on it and it's started to develop a "shudder" and it's been shifting harder. On cruise control it will shudder at around 1300 rpm with speed staying constant. I've driven it in manual on new roads at 35 MPH and it also shudders around the same RPM range. We're talking about vibration enough to shake the steering wheel. Almost the same effect as driving over bumps in the road. When driving it very aggressively at higher RPMs the issue isn't as severe. Also when drifting, aka letting the vehicle decelerate, the issue goes away. 

      Has anyone had the same issue with the 2016 8 speed? Any solutions?
       
      I'd like to have an idea of what the problem is before going to the dealership tomorrow. I bet $100 they'll tell me it's the tires....
       
      Thanks for input,
      JK29
    • By da7ome
      hi I have a 2009 GMC Sierra with a 5.3 L engine with 4l60e transmission with 4x4 and I want to make 550  horsepower how can I achieve that thnx
       
    • By KrustyCraftsmen
      I fabricated true dual exhaust for my 2009 Silverado this weekend and have been plagued by horrible drone at 2000 RPM. cat back is 3" exhaust with x pipe right after cats and 10" flex pipes. dual exits before the rear wheel with 5 inch tips. Unsure if I should add a resonator and if so which one. don't want to loose the volume or flow but cant deal with the drone. will post pics of system soon. anything helps
    • By topshelfproducts
      CASH TALKS! TEXT ME OR CALL 406-690-537I TO DISCUSS, TEXT PREFERRED AS I WORK OUT OF CELL SERVICE OFTEN.

      Selling my beloved 2007 GMC Duramax Diesel, last year of the best of the LBZ model code. No emissions from the factory to deal with, and considered to be the best model of duramax ever made. This is a very clean truck, I looked long and hard to find this, and it is my 3rd lbz GM truck. No leaks no drips no check engine lights nothing. Ready for anything and will last forever, I see these trucks on the forums over a half million miles getting beat on daily and running forever, this has been babied. Yes I am asking over book and considering offers, please realize this truck has had a lot more than the average truck has had put into it. Really like buying a brand new truck with everything completely done. Truck is awesome all around. The front seats are showing light wear but no rips, rears and rest of interior looks like new. A couple light paint chips on the front bumper, and I have all factory touch up paints. That's it for imperfections. THIS TRUCK IS CLEAN CLEAN CLEAN. I hate selling, however this truck is such a garage queen it makes it hard for me to justify keeping. I started a new position shortly after purchasing the truck and have a work vehicle I use the marjority of the time. The truck is only used for weekend soccer interstate trips etc.

      I am the 3rd owner, first was in california and second was in billings and was an oil worker, and it was a garage queen its life. I purchased the truck and did extensive upgrades and reliability modifications to make it the perfect truck in my eyes. I have spent thousands in upgrades and countless hours and extensive labor charges to get the truck to where it is today. This will make someone a reliable powerful vehicle for many years to come with everything done. Always ran premium diesel and Stanadyne with every fillup.

      Truck is fully loaded slt model, every available option except leaking sunroof. Bose stereo, power heated leather etc etc.

      I will do my best to list everything I can think of about the truck. I am sure I will miss much as so much has been done it is hard to even remember it all. Everything was done with reliability in mind first, and performance second. I have most of the stock parts as well that have been removed.

      Upgrades and performance modifications...
      Allison deep transmission pan and new gasket with all new filters.
      Transgo jr shift kit.
      Fleece all on module
      Duramax store transmission cooler line kit upgrade (replaces notorious oem leaking lines)
      Professionally installed rough country 3" lift kit, including new steering stabilizer, 4 new shocks, new rear block, new upper control arms with better angle for ball joint lift, new torsion keys. Also did new pitman and idler arm at this time and full alignment.
      16" XD wheels with 33" Cooper AT3 tires, maybe 5k miles on tires.
      SDP PCV reroute kit
      AFE Series 2 intake with afe pre filter
      4" MBRP mufflered exhaust with black tip.
      3" MBRP downpipe
      MBRP uppipe
      Sinister EGR delete kit
      Edge Insight Gauge Monitor with egt into passenger side exhaust header. Gauge is mounted in dash pod and professionally wired.
      Airdog 165 lift pump
      Capped resonator
      Fleece headlight modification (allows fogs brights lows driving to all be on simultaneously)
      Full window tint with vent visors.
      2 sets of weathertech floor mats, one still new in box.
      Trailer brake
      Snugtop Topper color matched and fitted for the truck, matches the lines perfect.
      5th wheel rails in bed
      GMC Gatorback heavy duty mudflaps
      Lund chrome nerf bars
      Blacked out led taillights

      EFI LIVE by Idaho rob at atp in Idaho, comes with efi live tuner.
      If you are not familiar with efi live tuning take some time to read up on google, it is amazing what it does for these trucks and Idaho Rob is considered among the best tuners in the business.
      Truck was tuned after all modifications were completed and comes with 5 tunes that are able to be shifted on the fly with the dsp 5 switch mounted in the cigarette lighter spot and is tuned for the transmission with shift kit. Tunes range from optimized stock, tow tune with turbo tow brake, 90hp eco, 120 street, and 150 hot race, and are changeable simply by turning the switch from positions 1 through 5. I have used the tow tune and the eco tune primarily, as I get older I enjoy cruising more than speeding. The truck does have the ability to really pull however in the higher tunes. Very clean tuning with almost no smoke except in tune 5 where it will smoke a little when getting after it. Truck has not been rodded, adult owned and driven always.



      Maintenance items completed...
      All completed within the last 6 months.
      Repeat drain and fills of both differentials with 500k mile synthetic delo dif fluid.
      Repeat drain and fill of transmission and allison filters using only transynd fluid. (Internal filter also change with the deep pan addition.)
      New oem gm radiator hoses and coolant filled drained and filled multiple times. Hyperlube racing coolant additive added on last fillup.
      New oem thermostats
      Brake fluid flushed twice, filled with Valvoline synthetic brake fluid.
      Power steering flushed twice, filled with blue line synthetic power steering fluid.
      Midas full alignment after lift kit installation.
      4 wheel tire balance.
      Full midas inspection showing everything in the good green category.
      New intermediate dorman problem solver steering shaft and bearing kit (fixes notorious oem clunking steering problem)
      New spicer lifetime greasable ujoints
      All zerks repeatedly greased with lucas red and tacky
      Recharged air conditioning.
      Turbo Vane cleaning done.
      Synthetic oils and oem filters, oem airdog liftpump filters.

      Truck is ready to go. Title in hand, lien through local bank which my wife works at and all title work can be done at bank on day of sale.
      I may consider delivery for a fee, depending on how far etc.
      I may consider a partial trade on a cheaper vehicle (under 5kish) with your cash offer. Would need to know all vehicle details.

      SERIOUS INQUIRIES ONLY PLEASE!!! I am working huge hours right now and don't have time for tire kickers. Vin available upon request. Truck is located in billings montana and can be viewed at almost any time. I will try to get more pictures up of the truck as time allows. First picture is current with topper, other pic just to show how it looks without topper.
  • Recently Browsing   0 members

    No registered users viewing this page.

  • Forum Statistics

    191,242
    Total Topics
    2,014,904
    Total Posts
  • Member Statistics

    157,707
    Total Members
    8,960
    Most Online
    mikko vuori
    Newest Member
    mikko vuori
    Joined
  • Who's Online   77 Members, 0 Anonymous, 439 Guests (See full list)

  • Popular Now

×

Important Information

By using this site, you agree to our Terms of Use.