Speed Engineering True Dual Exhaust

[Bohanan23]

Who all is running the Speed Engineering on their truck? Dumped or side exit post them up. I will be adding the rear exit style to my truck in a couple weeks. I haven't seen many 2014+ trucks running the side exit!

[Bohanan23]

I installed my exhaust over the weekend. Everything went smooth with no issues. I used a lap joint clamp off Amazon for the driver, passenger, and crossover and the supplied clamps for the remainder of the exhaust. My truck is even lowered 3/5 with a flip kit and doesn't come in contact with axle on bumps. My old setup was y-pipe into 3.5" exhaust into a Borla XR-1 dumped at the axle. New exhaust eliminated all drone and is even louder at WOT than the dumped bullet muffler. Couldn't be happier with their exhaust system for $475 shipped to my door. I will upload pics today as well. Truck also is stronger in mid range for those wondering. I've only gone WOT up to 70 MPH since I live in a area heavy with cops

[Bohanan23]

 

[flyingfool]

are you goanna do their long tube headers and y collector ?

[Bohanan23]

I already have their long tubes. I went from their y pipe to this dual x pipe exhaust. Y pipe is only 1 outlet. This is outlet from driver over to passenger side into x pipe with dual inlet and dual outlet

[Bohanan23]

This is it:

 

https://www.speed-engineering.com/shop-by-vehicle/2014-2017-gm-trucks/exhaust/true-dual-exhaust-kits/silverado-sierra-true-dual-exhaust-system-2007-2013-crew-extra-cab-rear-exit.html

[flyingfool]

did you get a chance to dyno the system? if not use the OBD2 port as it provides HP and Torque output data to a smart phone via torque app, just curious if it shows any improvement.., 

also how does the tranny pan clear the y-pipe or the x-pipe, is it easier to drop  the trans pan now?

 

 

what other parts are required to complete it, and is it loud as F***

[Bohanan23]

No dyno. I will get it retuned. It's stronger in mid range for sure. Clears transmission just fine no isses. And nope. It's actually so quiet I have to roll down window to hear it and a decent throttle. Cold start is super quiet. Literally NO drone at any speed.. 25,45,60,75, etc. If I could figure out how to upload a video I would. If you're on facebook in the Gen V truck page search my name "Hunter Bohanan" and you'll see my recent posts on it along with start up and a full throttle video.

[Bohanan23]

Here is the first start up video I made. I am uploading a short 25-70 pull I did also to show how it sounds at full throttle.

 

[flyingfool]

hey sounds good, !!!! my only issue is I would like a 1/4" smaller tube header. they seem a bit large for a 5.3 motor, those would be perfect in a 6.2 camaro. i just wont sacrafice low end power for high rpm hp.

[flyingfool]

i'm thinking this might be a better option for the 5.3 , they're 1-3/4 primaries 2-1/2 collector

http://www.dougthorleyheaders.com/thy-352y-l-c--2014-2019-chevy-silverado--gmc-sierra-5.3l-v8-long-tube-tri-y-headers_15752

[Bohanan23]

They aren't but everyone has their own opinion. I prefer my $4XX Speed Engineering headers over a set for $880's for same result. 

[flyingfool]

do they make 1 3/4 headers for our truck at speed engineering? 

[Bohanan23]

No. Only 1 7/8". With the compression and power the 5.3 and 6.2's make now I wouldn't use anything less. My 06 had 1 7/8" also. Pulled great.