I need my 01 Yukon xL 5.3 louder but not ear piercing

[LordWayback]

so I’m on a quest for more exhaust noise but no exhaust ticket my gmc is simply not loud enough does anyone have a aftermarket muffler they’ve installed to be louder but nothing crazy?

 

[LordWayback]

You can barely hear my 5.3 running which if you’re into being a soccer mom it’s perfect but if you like hearing the noise it makes when you mash the pedal it simply won’t do unless it’s a really cold morning my truck doesn’t really make noise even with a exhaust leak by headers

 

[Sam Harris]

I’ve been pretty happy with an 18” magnaflow in place of the gigantic factory muffler. The resonator has also been removed, and a Helmholtz resonator was installed, to tune out the drone around 2k rpm. When I installed the ARH longtubes, there was not a significant difference in volume, but once the muffler was replaced, that made all the difference. That was on an essentially factory engine, and since doing the heads and cam, the sound is MUCH louder and different.

 

[Fless]

I’ve been pretty happy with an 18” magnaflow in place of the gigantic factory muffler. The resonator has also been removed, and a Helmholtz resonator was installed, to tune out the drone around 2k rpm. When I installed the ARH longtubes, there was not a significant difference in volume, but once the muffler was replaced, that made all the difference. That was on an essentially factory engine, and since doing the heads and cam, the sound is MUCH louder and different.

I can vouch for the veracity of these statements.

 

[LordWayback]

I’ve been pretty happy with an 18” magnaflow in place of the gigantic factory muffler. The resonator has also been removed, and a Helmholtz resonator was installed, to tune out the drone around 2k rpm. When I installed the ARH longtubes, there was not a significant difference in volume, but once the muffler was replaced, that made all the difference. That was on an essentially factory engine, and since doing the heads and cam, the sound is MUCH louder and different.

I just need a muffler swap honestly California doesn’t like you touching anything I was thinking the ol cherry bomb but those are too loud for my purposes

 

[LordWayback]

Thinking about a thrush with a 3” adapter

 

[MassHoe04]

The PO installed Corsa Performance stainless cat-back system on my 04 5.3. LOVE IT!!!
A little grumbly and rough around the edges, but only in the way a great American V8 should be.
Step on it and it lets you know it is there, but tame on the highway.
Great sound on around town, not too loud.
It cackles a bit too, when the engine is raced up quick from idle.

Very happy with it. Especially, since it was not my money...

 

[Trey Hardy]

You can barely hear my 5.3 running which if you’re into being a soccer mom it’s perfect but if you like hearing the noise it makes when you mash the pedal it simply won’t do unless it’s a really cold morning my truck doesn’t really make noise even with a exhaust leak by headers

I got Longtubes and no cats with a x pipe to take away the popping frapping out the exhaust then running into duel flowmasters super 10s and 5” tips
Cruising it’s not super loud or idling but if I get on it or red line it then it’ll set off car alarms at the same time. I love it
On my Tahoe I’m doing the exact same setup but with 6” axle dumps and instead of super 10s ima try the borla atak mufflers as a couple buddy’s has them and they sound NASTY

 

[MassHoe04]

I got Longtubes and no cats with a x pipe to take away the popping frapping out the exhaust then running into duel flowmasters super 10s and 5” tips
Cruising it’s not super loud or idling but if I get on it or red line it then it’ll set off car alarms at the same time. I love it
On my Tahoe I’m doing the exact same setup but with 6” axle dumps and instead of super 10s ima try the borla atak mufflers as a couple buddy’s has them and they sound NASTY

I'm shocked that can be done in CA... Especially, since they were the ones that started the toughest emissions requirements before anyone else.

I am in MA. We don't need to do emissions, but still not legal to remove federal emissions components (cats).
If I ran straight pipes and the inspector for the RMV happened to see a missing cat, I'd fail and probably get a fine.

But, no worries. I may be a bit jealous, but I am not a rat! - Enjoy!

 

[LordWayback]

I'm shocked that can be done in CA... Especially, since they were the ones that started the toughest emissions requirements before anyone else.

I am in MA. We don't need to do emissions, but still not legal to remove federal emissions components (cats).
If I ran straight pipes and the inspector for the RMV happened to see a missing cat, I'd fail and probably get a fine.

But, no worries. I may be a bit jealous, but I am not a rat! - Enjoy!

I already had my straight pipe days to me now it’s not worth a ticket I just need to be louder especially with my subs

 

[LordWayback]

Pic from last night but I’m gonna end up going with this and if it’s too loud or quiet change it I’m gonna clamp it on and put a aftermarket 3” tailpipe so I can have a exhaust tip

 

[mattbta]

I have one of these (single in, dual out) and it's a tad loud for me but not horrible. I'm 43 now and long gone are my 19 year old LS1 with headers/no cats/true duals. Went with it due to reports of no drone and can confirm. I may just get the larger 300 series and see.

Venom 250-series – $139.00 - $156.00 U.S. - Products - blackwidowexhaust.com

In Stock orders processed after 12pm PST will be sent out the following business day. Each muffler box includes an 8" white vinyl sticker and installation card. Warranty information can be found at Warranty .

blackwidowexhaust.com

Edit: Video of start/idle:

 

[MassHoe04]

Pic from last night but I’m gonna end up going with this and if it’s too loud or quiet change it I’m gonna clamp it on and put a aftermarket 3” tailpipe so I can have a exhaust tip

A lot of folks run with those. Seem to be really popular. With it clamped in place, you could always get something else and sell off the Thrush on Craigslist, Ebay or Marketplace, if it is not right for you.

 

[LordWayback]

A lot of folks run with those. Seem to be really popular. With it clamped in place, you could always get something else and sell off the Thrush on Craigslist, Ebay or Marketplace, if it is not right for you.

That’s why I wanted to clamp it eventually I wanted to weld it if it’ll weld I was gonna give the noise level a test spin and if it’s suitable and the wee woos don’t go off on me I’m gonna stick with it

 

[Marky Dissod]

If I ran straight pipes and the inspector for the RMV happened to see a missing cat, I'd fail and probably get a fine.

1. Open and hollow out a catalytic converter, or find one already hollowed out.
2. Stick straight pipe through hollowed catalytic converter body.
3. Close catalytic converter body around straight pipe.
4. No fail, no fine, Bob's your uncle.

Standard disclaimers apply - but it's a typical ploy that often works if the tuning is right.

 

[Trey Hardy]

I'm shocked that can be done in CA... Especially, since they were the ones that started the toughest emissions requirements before anyone else.

I am in MA. We don't need to do emissions, but still not legal to remove federal emissions components (cats).
If I ran straight pipes and the inspector for the RMV happened to see a missing cat, I'd fail and probably get a fine.

But, no worries. I may be a bit jealous, but I am not a rat! - Enjoy!

All depends on who you know plus you can always run some pipe through your stock cats or get a set of “dummy” cats just for looks. As long as they don’t break out the sniffer you’re good lol. Find you a mom and pop shop out in the sticks somewhere to get your inspection done.

 

[MassHoe04]

All depends on who you know plus you can always run some pipe through your stock cats or get a set of “dummy” cats just for looks. As long as they don’t break out the sniffer you’re good lol. Find you a mom and pop shop out in the sticks somewhere to get your inspection done.

State system priced a lot of mom & pop's out of business.
The ones who are left are scared rabbits... They had to buy multi-cam video systems that live feed to inspectors. I have heard they have jumped into the shop system by chat and asked for specific things to be re-checked, if it seemed like the shop might have "missed" something.

I wouldn't do anything that could get me in trouble anyway. I am more than happy with the Corsa performance cat-back just the way it is now. Love the sound!

 

[Alex_M]

I've run a lot of mufflers. Most of them on the market. For the price, and level of noise I like any more (not a lot, just enough) I really like the FlowMaster FlowFX series.

 

[LordWayback]

I’m getting the muffler on Monday I’m gonna run a custom 3” exhaust post muffler

 

[LordWayback]

The most American I’ve ever felt was ignoring the exhaust modification in California illegal message pop up on summit I just clicked accept no cops gonna impound my truck unless it has a exhaust cutout or I’m street racing (rural California)