Best exhaust on 5.3

[tnchevy]

Which Borla are you running. I actually live near their factory in TN and can get a little off the MSRP but damn they are still expensive.

[iCryWheniGoPoop]

That is interesting, how much better is you mpg with AFM turned back on. 1 mpg or better? I've always had an exhaust on everything I own and it is killing me not to do something to my 2014. Tried the dynomax VT but just didn't sound very good and the truck actually shook with V4 and the throttle barely pressed plus helicopter sound. I am thinking of breaking down and going with a flowmaster 50 series but that Corsa sounds really good.

I put a 70 series on my '14 5.3 and loved it... Still had v4 warble though (kinda like the back windows were down) so I shut the AFM off.

 

 

Sent from Off Driller Side

[Higgs Boson]

I have the magnaflow on my 6.2 and even with long tubes/high flow cats it is amazing. Best aftermarket exhaust I have ever had! smooth, deep, no rasp, not too loud......i really do like it and I never admit to liking anything!

[Asells]

I just put an mbrp exhaust on today. First thought is that I like it. Its got a nice deep growl when accelerating but when cruising its almost unnoticeable.

[JEFFBTRUCKER]

Only time I noticed V4 chop was slowing down off ramp. I usually drive around town M5 and M6 Hwy. Shop installed 18" Magnaflow 2.25 dual with 16" long 3.5 " round tips. $380. Sounds great but going to switch to a Chambered or Turbo type muffler. Plus with 2.25 dia. pipes you are limited to bolt on tip size in lenth 2.5. has alot more choices including mufflers

[Truckin 55]

Only time I noticed V4 chop was slowing down off ramp. I usually drive around town M5 and M6 Hwy. Shop installed 18" Magnaflow 2.25 dual with 16" long 3.5 " round tips. $380. Sounds great but going to switch to a Chambered or Turbo type muffler. Plus with 2.25 dia. pipes you are limited to bolt on tip size in lenth 2.5. has alot more choices including mufflers

This is an old account I messed up trying to change user name when I first joined . It is also on my Facebook log in ,if possible administrator or someone please delete it

[Tek74]

I'm really wanting a Borla Cat Back Touring Exhaust with straight back duals for my 5.3L 2015, but have been on the fence due to the V4 sound issue, as I don't really want to do a tune at this time. Maybe not even until the 5yr power train warranty has expired.

 

After doing a little digging, I was able to confirm that Borla and its distributors "only" sell the standard Touring model, while GM dealers "only" sell the Touring version with the Flapper Valve to remedy the V4 drone people are mentioning. For those that went with the standard (non-GM) model, opinions vary as to how noticeable and annoying the V4 drone (or chopping sound) really is. I know that some people a super sensitive to things, while others are not. Based on all the reviews I've read, it seems that the V4 tone annoyance is probably a 3-4 on a 10 scale.

 

Part of me wants to go with the GM flapper valve version, but they are probably $100 - $200 more expensive than the standard Borla, which is not cheap as it is. Best deal I've seen is $950 shipped. I'm probably gonna call a GM dealer for a part number and cost pretty soon. I found three different GM part numbers (below) and can't seem to tell the difference in them. If anyone finds out before I do, please post the difference in the three models.

 

#19303331

#19303332

#19303333

 

To be honest, I've gotta give Borla a really big thumbs down on not offering the Flapper Valve version directly to public, especially when GM has clearly switched to the Ecotec3 engine with AFM.

 

Borla.....are you listening?

[HondaHawkGT]

If you get the Borla and the V4 noise bothers you, you can always drive the truck in M5 to avoid most of it. A Range unit is another option to disable v4. I drive the first 12k miles with using the M5 method to disable v4. I live in a hilly area so losing v4 had negligible effect on my FE.

[chuckl1218]

I'm really wanting a Borla Cat Back Touring Exhaust with straight back duals for my 5.3L 2015, but have been on the fence due to the V4 sound issue, as I don't really want to do a tune at this time. Maybe not even until the 5yr power train warranty has expired.

 

After doing a little digging, I was able to confirm that Borla and its distributors "only" sell the standard Touring model, while GM dealers "only" sell the Touring version with the Flapper Valve to remedy the V4 drone people are mentioning. For those that went with the standard (non-GM) model, opinions vary as to how noticeable and annoying the V4 drone (or chopping sound) really is. I know that some people a super sensitive to things, while others are not. Based on all the reviews I've read, it seems that the V4 tone annoyance is probably a 3-4 on a 10 scale.

 

Part of me wants to go with the GM flapper valve version, but they are probably $100 - $200 more expensive than the standard Borla, which is not cheap as it is. Best deal I've seen is $950 shipped. I'm probably gonna call a GM dealer for a part number and cost pretty soon. I found three different GM part numbers (below) and can't seem to tell the difference in them. If anyone finds out before I do, please post the difference in the three models.

 

#19303331

#19303332

#19303333

 

To be honest, I've gotta give Borla a really big thumbs down on not offering the Flapper Valve version directly to public, especially when GM has clearly switched to the Ecotec3 engine with AFM.

 

Borla.....are you listening?

For a detailed description of each part number, you can go to:

http://www.shopchevyparts.com/all-new-silverado-1500/performance-c-26_2519_2520_2526.html

 

For example, 3334 is for a Crew Cab, STD box, dual pipes out the rear...and so on with pictures. I used their GM part numbers and searched...found mine from a GM dealer through Amazon.com.

Remember, the tips are sold separately as a pair in chrome or black.

 

And, to another of your questions, this was a joint development effort between GM and Borla engineering, but it is a GM product, sold exclusively through GM dealers. None of the exhaust providers have this type of flapper valve and this is nuch better than stock with a bypass loop.

[Tek74]

Thanks for info and the link. I figured that the GM exhaust was proprietary.

So it looks like the $1k model #19303333 is what I would need for my Double Cab, Standard Box, along with the $120 exhaust tips. So it's probably about $1150 shipped. Ouch...!!!

[tnchevy]

 

And, to another of your questions, this was a joint development effort between GM and Borla engineering, but it is a GM product, sold exclusively through GM dealers. None of the exhaust providers have this type of flapper valve and this is nuch better than stock with a bypass loop.

The dynomax VT does have a flapper in the muffler itself. I tried it for a week but still did not like the helicopter sound in V4 with light throttle so went back to stock. Plus the dynomax did not have a very impressive sound at idle or light to medium throttle but did sound good at wot.

[chuckl1218]

Thanks for info and the link. I figured that the GM exhaust was proprietary.

So it looks like the $1k model #19303333 is what I would need for my Double Cab, Standard Box, along with the $120 exhaust tips. So it's probably about $1150 shipped. Ouch...!!!

 

I got mine (19303337, dual side exit for Double Cab, Standard Box) for $1020, plus $144.95 for the tips, plus $64.50 shipping from Louisiana to Texas = $1229.45 total delivered from Banner Automotive via Amazon. I started out by doing a Google search using the part numbers.

[Tek74]

 

I got mine (19303337, dual side exit for Double Cab, Standard Box) for $1020, plus $144.95 for the tips, plus $64.50 shipping from Louisiana to Texas = $1229.45 total delivered from Banner Automotive via Amazon. I started out by doing a Google search using the part numbers.

 

Yeah, after doing some more checking, I found the whole set up I would want for about $1210 shipped. Since you have the GM version, can you please give me your opinion of the V4 sound while driving at a steady pace, to include the freeway? Any drone sound? Is there much difference in sound in V4 from V8?

 

From what I've heard, the overall exhaust tone sounds similar to stock until you get over 2k rpm. Do you ever wish you got a slightly louder exhaust?

[chuckl1218]

 

Yeah, after doing some more checking, I found the whole set up I would want for about $1210 shipped. Since you have the GM version, can you please give me your opinion of the V4 sound while driving at a steady pace, to include the freeway? Any drone sound? Is there much difference in sound in V4 from V8?

 

From what I've heard, the overall exhaust tone sounds similar to stock until you get over 2k rpm. Do you ever wish you got a slightly louder exhaust?

 

There is no drone at all. Because I am listening for it, I can tell the difference between V4 and V8, but it is very minor and I do not feel any vibration when it changes. I would disagree about the note...it is much more of a "throaty rumble" from the cold start and at idle and then when slowly accelerating. While it is very noticeable over 2K rpm, it does mellow out at highway speeds and is mild at 80+ mph. But I could not hear my stock sound at all when cruising or slowly accelerating. This GM Borla reminds me of how stock exhaust used to sound on my 1999 ¾ ton Suburban. Nice, throaty rumble,then smooth on the highway.

[Tek74]

 

There is no drone at all. Because I am listening for it, I can tell the difference between V4 and V8, but it is very minor and I do not feel any vibration when it changes. I would disagree about the note...it is much more of a "throaty rumble" from the cold start and at idle and then when slowly accelerating. While it is very noticeable over 2K rpm, it does mellow out at highway speeds and is mild at 80+ mph. But I could not hear my stock sound at all when cruising or slowly accelerating. This GM Borla reminds me of how stock exhaust used to sound on my 1999 ¾ ton Suburban. Nice, throaty rumble,then smooth on the highway.

 

Nice. Thanks for the info. I'm probably gonna go ahead and pull the trigger on this pretty soon. The engine is so quiet, its killing me. My previous car was a Trailblazer with a Flowmaster exhaust, so I'm used to hearing something when I accelerate and cruise.