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Speed Engineering True Dual Exhaust Prototype..

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Old 04-07-2016, 04:20 PM
  #471  
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has anyone weighed the stock system vs the true dual system to see if there is any weight loss?
Old 04-07-2016, 09:26 PM
  #472  
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I was thinking the same thing. So, I went out and weighed all my stock pieces. Manifolds to tailpipe and came out at roughly 119 lbs. Not sure what the Speed Engineering kit is tipping the scales at though since its on the truck already. Factory exhaust was the 2.5 dual cat setup like the 3/4 ton trucks. I would say from what I remember the new stuff "feeling" like it was quite a bit lighter compared to factory. Light enough that I was concerned about what was actually in the UPS boxes before I opened them and laid everything out anyways. Still digging this kit too btw!

Last edited by stryduh; 04-07-2016 at 10:31 PM.
Old 04-08-2016, 10:38 AM
  #473  
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Thank you guys..

I posted the dyno sheet and specs of everything on the front page for referencing. The weight of our complete system including headers is 76lbs.

Thanks
Sean
Old 04-08-2016, 01:28 PM
  #474  
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Originally Posted by Speed Engineering
We just got our 1999-13 truck true dual exhaust prototype back in for fitment verification. Came back looking pretty sick. Thought you guys would want to see whats to come. If fitment goes smoothly eta is approx 3 months out for our first batch of them.

The exhaust will bolt up to all of our truck longtube headers from 1999-2013, single, crew, and extra cab trucks.

Thanks
Sean





https://youtu.be/h5UqHWRmrRY

Added 2/18/16:

Ok, thought you guys would enjoy some actual dyno numbers of the true dual exhaust.

Vehicle:
-2008 Sierra Crew Cab 4x4
-6.0L Engine (Stock Bottom End & Heads)
-228 Camshaft
-Our 1 7/8" Longtube headers
-Stock 3" Cat-Back w/Magnaflow muffler welded in.

1100MD Mustang dyno:
Stock Cat-Back w/Magnaflow Muffler
-343rwhp
-331rwtq

Our 3" True Dual Exhaust
-367rwhp
-350rwtq

Gain: 24rwhp/19rwtq

No other changes were made to the vehicle besides the true exhaust swap. Headers were already installed. The thing we were most surprised with was the torque gain across the board. It didn't loose any bottom end. The larger 3" exhaust actually gained torque across the board.

I want these to match with my speed engineering long tubes.
Old 04-09-2016, 09:05 AM
  #475  
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Originally Posted by stryduh
I was thinking the same thing. So, I went out and weighed all my stock pieces. Manifolds to tailpipe and came out at roughly 119 lbs. Not sure what the Speed Engineering kit is tipping the scales at though since its on the truck already. Factory exhaust was the 2.5 dual cat setup like the 3/4 ton trucks. I would say from what I remember the new stuff "feeling" like it was quite a bit lighter compared to factory. Light enough that I was concerned about what was actually in the UPS boxes before I opened them and laid everything out anyways. Still digging this kit too btw!
43lbs of savings, that's significant for just exhaust.
Old 04-10-2016, 05:30 PM
  #476  
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So 2000 regular cab 8" bed... Would need to order extended/crew and cut to fit correct?
Old 04-11-2016, 12:20 PM
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We haven't never heard back from those few that purchased our systems for long beds. I am assuming it worked just fine. PM me a picture of your frame. Specifically between the rear end and your transmission cross-member. Once I see which frame you have I can let you know which kit would be the best shot at working for your truck.

Thanks
Sean
Old 04-11-2016, 06:53 PM
  #478  
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Waiting on your headers to get in so I can order complete system for a 25hd lb cc. 4x4 3" lift.
Old 04-13-2016, 12:26 PM
  #479  
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Originally Posted by Speed Engineering
We haven't never heard back from those few that purchased our systems for long beds. I am assuming it worked just fine. PM me a picture of your frame. Specifically between the rear end and your transmission cross-member. Once I see which frame you have I can let you know which kit would be the best shot at working for your truck.

Thanks
Sean
Sean, don't have a computer so having a hard time pm a pic so I'll just post in here hope u don't mind. Is this a frame shot ur looking for I'm a little confused on what u wanna see. It's a 2000 GMC Sierra 1500, reg cab long bed 4.8 with the nv3500 5 speed 4x4 so I believe it shares the same transmission cross member as a 4l80e
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Old 04-14-2016, 11:20 AM
  #480  
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Thank you. I am looking to see if your frame has this u-shape bar like the extended cab frames do. If you dont then the 07-13 extended/crew cab kit would be your best shot.




Thanks
Sean


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