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2014+ Exhaust Systems & Mufflers

Escalade1979

By Escalade1979
in Engines & Drivetrain

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Trwtow Enthusiast

Trwtow

Posted
Posted

does anyone have the gmpp exhaust on there truck that dealership installs I see its even an option when u build the truck on Chevrolets website

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whodatfan
whodatfan

Finally had the tips moved to rear quarter flush and with a slight stagger.   Sent from my HTC One using Tapatalk

GreyGhostZ71
GreyGhostZ71

Corsa cat back with ARH headers. Love it         Sent from Tapashit

Luster
Luster

The number of hours spent on any given forum are directly proportional to the number of dollars spent on subject vehicle.   Ask me how I know.

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smpldezine Enthusiast

smpldezine

Posted
Posted

Just installed the aFe catback on my truck.. the install was very simple and the quality is great! Only thing I don't like is the "diesel" exhaust tip that comes with the system. The catback is 3" stainless and then where the tip clamps on it buldges to 3.5" and the tip outlet is 4.5" (as seen in pics). Why are these companies making these so big? Looks like it belongs on a honda. I removed the tip before I even tightened down the clamp and will be selling it ASAP. Looking for a little less dramatic tip .. otherwise the system is great and exactly the sound I was looking for without spending 2.5x as much...

 

 

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14SLTZ71 Enthusiast

14SLTZ71

Posted
Posted (edited)

I ordered Borla Touring part # 140544. Just looking for a step above stock, not too loud. Just a deeper tone, these new trucks have almost no sound, GM was very successful at making them quiet.

Update:

This exhaust has a great sound, nice deep rumble, not too loud, however it has V4 drone along with the flutter/helicopter sound. Tune V4 out or Use the Range V8 and this is a great exhaust system. Looks real nice also, dual out the back behind each tire with polished tips. I sent it back to Borla because I want to be able to use V4 mode on long trips or whenever. I think they wanted it to run some tests on it anyway.

If you buy the GM version, it comes with the adaptive valve for V4 mode but you can't get it with dual out the back behind each tire. You have to get dual out one side or dual straight out the back.

One more thing which I found a little odd, the muffler doesn't have a drain hole so water accumulates in it. I guess you could drill a hole.

Oh, one more thing, I tried to get them to just send me the front pipe assembly from the GM version which has the adaptive valve in the pipe and they wouldn't do it. I guess GM owns the rights to that valve or something so you can't even buy the GM version of the exhaust from Borla, you have to buy it from an authorized GM dealer.

Edited by 14LTZZ71
14SLTZ71 Enthusiast

14SLTZ71

Posted
Posted

This is a statement I received from Corsa Performance related to their exhaust system for the 2014 Silverado:

 

We appreciate your interest. We have spent many hours of research and development on the new GM truck systems. We eliminated the mechanical valve after the muffler. This is how we achieve an increase in flow. At times you may notice a "flutter" type sound effect from your vehicle in V4 mode, after installing our performance exhaust. I would not call it drone. We designed our Corsa system to disguise this sound as best as possible. We do this better than any other manufacturer. But the V4 sound will always be a characteristic of your vehicle unless you have it turned off with an aftermarket "tune." But again, I would not call it drone.

2014MallCrawler Enthusiast

2014MallCrawler

Posted
Posted

Just installed the aFe catback on my truck.. the install was very simple and the quality is great! Only thing I don't like is the "diesel" exhaust tip that comes with the system. The catback is 3" stainless and then where the tip clamps on it buldges to 3.5" and the tip outlet is 4.5" (as seen in pics). Why are these companies making these so big? Looks like it belongs on a honda. I removed the tip before I even tightened down the clamp and will be selling it ASAP. Looking for a little less dramatic tip .. otherwise the system is great and exactly the sound I was looking for without spending 2.5x as much...

 

 

 

I love the way the exhaust tip looks. Its fitting with how exhaust systems look these days. At least its the single side, not the dual straight out the rear like the old days! What do you think of the sound now that it has broken in a bit? I LOVE mine! I've had Borla, Flowmaster, Corsa, Bassani, Magnaflow and Stainless Works catbacks on many vehicles in the past and this for sure is a contender!

Luster Senior Enthusiast

Luster

Posted
Posted (edited)

 

I love the way the exhaust tip looks. Its fitting with how exhaust systems look these days. At least its the single side, not the dual straight out the rear like the old days!

Haha... yeah I remember back in the 70's & 80's when "duals out the back" were the latest craze! Funny thing is, a friend of mine just had his F-150 done that way! (I think it's age-related :lol: )... (Although I'm in my 60's and I'm not a fan of that look on a TRUCK! )

Edited by Luster
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Luster Senior Enthusiast

Luster

Posted
Posted (edited)

:SMH: Dodge is still doing it.

Imagine that. :crackup:

Edited by Luster
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KARNUT Senior Enthusiast

KARNUT

Posted
Posted

Imagine that. :crackup:

Duals been around since the flat heads, ever look at the back of your Vette? I bet there are 4 sticking out back on that. Twice pipes are more common now than ever, which is fine by me.
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2014MallCrawler Enthusiast

2014MallCrawler

Posted
Posted

I agree, they've been around for ever. On certain cars like my Camaros they have a positive function. Zero 90 degree angles or Y-pipe and a true straight to back design further scavenged by the use of an H-pipe or X-Pipe. The problem I have with duals on trucks is that they come off of the manifolds over to a y pipe then down one side then hard 90's multiple times. Efficiency relies upon the reduction of bends and the efficiency of exhaust scavenging.

KARNUT Senior Enthusiast

KARNUT

Posted
Posted (edited)

I agree, they've been around for ever. On certain cars like my Camaros they have a positive function. Zero 90 degree angles or Y-pipe and a true straight to back design further scavenged by the use of an H-pipe or X-Pipe. The problem I have with duals on trucks is that they come off of the manifolds over to a y pipe then down one side then hard 90's multiple times. Efficiency relies upon the reduction of bends and the efficiency of exhaust scavenging.

Not really, one 3or31/2 inch is enough, so the other pipe is for the pleasure of the owner. Enough flow has already been reach. When I need more flow I just run them down one side.

Edited by KARNUT
whodatfan Enthusiast

whodatfan

Posted
Posted

So how much does it cost to get V4 tuned out? Should I just buy a tuner and do it myself with a custom tune? Pros and cons on doing this would be greatly appreciated. Obviously a pro is eliminating any V4 drone, but what else is gained/lost by tuning it out?

 

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Mike1220 Senior Enthusiast

Mike1220

Posted
Posted

So how much does it cost to get V4 tuned out? Should I just buy a tuner and do it myself with a custom tune? Pros and cons on doing this would be greatly appreciated. Obviously a pro is eliminating any V4 drone, but what else is gained/lost by tuning it out?

 

Sent from my HTC One using Tapatalk

By tuning it out you could lower your MPG possibly. Also if the dealer sees that your truck was tuned then they can void your warranty. Sucks that they can finally tell when these trucks get tuned. I was gonna get mine done until I read that they figured out how to tell.

 

 

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