8-Lug Truck Performance Duramax, 8.1L, and HD tech | Intakes | Exhaust | Tuning | Suspension | Drivetrain

Can you mate long tubes headers to stock exhaust pipes?

Thread Tools
 
Search this Thread
 
Old Jul 11, 2015 | 09:18 PM
  #1  
Suburban2500's Avatar
Thread Starter
Teching In
 
Joined: Jul 2015
Posts: 24
Likes: 0
Default Can you mate long tubes headers to stock exhaust pipes?

Looking to get long tubes primarily to fix manifold problems I'm currently having. My truck has mostly 3 inch duals to a single muffler from the factory. I'd rather keep the pipes and either keep or swap out the muffler to a magnaflow or something if possible. If not does anyone sell a header back exhaust for long tubes for these trucks that isn't overpriced, or even just a mid/down pipe to get me a little further back? I don't own a tube bender, but will be getting a welder soon. Also I don't trust the only exhaust shop nearby. I'm lucky to live in an area with no emissions.

Also, if anyone can recommend a good shorty that would be nice to have as an option.
Reply
Old Jul 12, 2015 | 07:28 PM
  #2  
Whipped383's Avatar
On The Tree
 
Joined: Aug 2012
Posts: 137
Likes: 0
From: Salt Lake
Default

What engine?
Reply
Old Jul 12, 2015 | 07:53 PM
  #3  
03sierraslt's Avatar
Admin
iTrader: (22)
 
Joined: Jul 2004
Posts: 19,007
Likes: 221
From: Western PA
Default

Yes, most of your good headers are actually designed to attach to the stock exhaust. Like wise most exhaust companys that build cat backs design them to attach to factory mid pipes. What are your manifold problems?
Reply
Old Jul 12, 2015 | 08:12 PM
  #4  
Suburban2500's Avatar
Thread Starter
Teching In
 
Joined: Jul 2015
Posts: 24
Likes: 0
Default

My bad, it's the 6.0 engine, 2000 model year. Talking about longtubes here. None of them look like they are designed to attach to stock exhaust, I might be wrong though, so if you know of one that will can you link it. Can you link a cat back? Manifold is just leaking at the gasket and the previous owner had some cracks welded. Time for an upgrade.
Reply
Old Jul 12, 2015 | 08:15 PM
  #5  
GMCtrk's Avatar
TECH Senior Member
iTrader: (27)
 
Joined: Jul 2004
Posts: 12,275
Likes: 17
From: Dallas
Default

ARH makes midpipes for the 6.0 with dual exhaust.
Reply
Old Jul 12, 2015 | 08:42 PM
  #6  
Suburban2500's Avatar
Thread Starter
Teching In
 
Joined: Jul 2015
Posts: 24
Likes: 0
Default

1,429.00 for the ARH header with midpipes without cats. I know you have to pay to play but I could do a stroker for that. I'm planning on just getting the pace setter long tube headers by the way.
Reply
Old Jul 12, 2015 | 08:46 PM
  #7  
GMCtrk's Avatar
TECH Senior Member
iTrader: (27)
 
Joined: Jul 2004
Posts: 12,275
Likes: 17
From: Dallas
Default

If you call them direct, I have saved a lot ordering directly from them before.

Also, if you're fretting over that amount of money, you would be better off staying stock.
Reply
Old Jul 12, 2015 | 08:59 PM
  #8  
Suburban2500's Avatar
Thread Starter
Teching In
 
Joined: Jul 2015
Posts: 24
Likes: 0
Default

Got a lot of projects, need to keep myself in check, slightly. Just looking to replace the stock manifold that's beaten up with something better. HP/$ isn't too great with that option. Truck isn't nice enough to justify yet, thanks anyways though.
Reply
Old Jul 12, 2015 | 09:16 PM
  #9  
GMCtrk's Avatar
TECH Senior Member
iTrader: (27)
 
Joined: Jul 2004
Posts: 12,275
Likes: 17
From: Dallas
Default

The stock HD exhaust flows extremely well once you're past the stock manifolds. If you're creative you may be able to fab up headers to the stock midpipes.

Also, to address your stroker comment, you won't come close to doing a stroker for that cost. To do a stroker correctly, set aside a minimum of 6-8k.

The most economical option would have been to start off with an 8.1L burb
Reply
Old Jul 13, 2015 | 09:57 AM
  #10  
Suburban2500's Avatar
Thread Starter
Teching In
 
Joined: Jul 2015
Posts: 24
Likes: 0
Default

I might order the headers, see where I can get with them. If not, I'll find another exhaust shop, try fabbing something up, or just bite the bullet and order from ARH. I am a big fan of their products.

Should I set aside $500 for my next oil change too? Seriously though, please don't pull numbers out of thin air, doesn't help me or anyone else at all. You can buy a 408 long block for $7,000. I've actually helped with a similar stroker that I'm looking to do to throw in my friends truck. Total was less than $4,500 and that includes the 6.0, machine shop costs, mail order tune, and a lot of extras. It's been 3 years and it still runs fantastic. For $8,000, it had better have diamond studded rockers.

Test drove an 8.1 before this, I guess I'm just a small block guy, felt the same way about it as the 454 vortec compared to the 350. Good engine but smaller aftermarket, small block stock feels snappier. Besides I'm trying to move on from Gen Is to LS engines.

Guess I'm done with this thread, thanks to everyone for helping.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ARC
GMT 800 & Older GM General Discussion
57
Feb 21, 2022 10:54 AM
Offroadunleashed
Trucks and SUV Classifieds
0
Jul 20, 2015 02:25 PM
FlowmasterMufflers
GM Engine & Exhaust Performance
0
Jul 17, 2015 03:26 PM
Chiphead
GM Engine & Exhaust Performance
7
Jul 13, 2015 10:16 PM
supersportsteve
New Members
0
Jul 4, 2015 12:02 PM




All times are GMT -5. The time now is 12:44 AM.