Jump to content

Wanting to install a new muffler 2009 Sierra


Recommended Posts

Posted

I want to install a new muffler on my 2009 Sierra truck. I dont want anything that I am going to hear constantly inside cab. I just want something that will sound really good idling and something that will sound good when you get on it but nothing over the top. Any ideas?

Posted

Dynomax VT. It sounds awesome, but is relatively quiet at idol. It does get louder when 4 cyl mode kicks in [all the more reason to give Justin a call].

 

Cheers, Brendan

Posted

Don't get me wrong I don't mind it being noticibly louder than the stock, I just don't want to be driving with the windows up and not being able to hear the radio either. I just love the sound of the old muscle cars when they are idling and when the pedal goes to the floor.

Posted

I have a MagnaFlow and absolutely love it. Noticeably louder than stock, no drone, no highway ridiculousness, just under acceleration and load. Deep throaty sound. I'd get a clip if my truck wasn't 1500 miles away. I absolutely love it. Mine is just a replaced muffler, all stock piping. A small bit of pipe has to be welded in with it since it's quite a bit shorter than stock.

 

http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/product__22316168-P_N3333E_P%7CGRP2023P____?cm_mmc=ET-_-Trans-_-Shipped-_-General

Posted

I have a Magnflow on mine, I think it is the 9x11 or 9x14 model. Has a nice deep growl, no drone and not much louder at speed.

Posted

Magnaflow 24" on mine. Slightly more rumble than stock, definately doesnt sound stock under load, but cant hear it at all at highway speeds with the radio at barely audible levels. I love it.

Posted

I bought a Corsa muffler and just replaced the stock unit. It is super quiet at idle, almost too quiet at speed, but sounds wonderful at WOT....has a great rumble at half throttle going through the gears.

Posted

I have a MagnaFlow and absolutely love it. Noticeably louder than stock, no drone, no highway ridiculousness, just under acceleration and load. Deep throaty sound. I'd get a clip if my truck wasn't 1500 miles away. I absolutely love it. Mine is just a replaced muffler, all stock piping. A small bit of pipe has to be welded in with it since it's quite a bit shorter than stock.

 

http://shop.advancea...ipped-_-General

 

 

I also went witha 14" magnaflow. Great sound. Still not fully broken in but I love it. I went with center in/center out tho. Straight thru pipe. #11219

Posted

IMO (because it's what I'm running), you can't go wrong with a Dynomax #17233 UltraFlo welded muffler. It's big enough to handle the 5.3 in and out of AFM, doesn't drone at all, and sounds really good at both idle and when you get on it.

 

On the other hand, if you like a whooptie sound...........

Posted

Hey AGT, glad too see you pulled the trigger on your muffler! I have the same 14" Magnaflow and I love it. Cruising at 75-80 it disappears, even when its in 4 cyl mode there is no annoying popping. But when I lay into it t sounds great.

Posted

Stay away from the welder mufflers. They are known for failing and end up sounding like crap when the internals start falling apart.

Corsa muffler would be your best bet, pricey but worth it over time.

 

 

Sent from my iPhone4S

using Tapatalk

Posted

Dynomax VT. It sounds awesome, but is relatively quiet at idol. It does get louder when 4 cyl mode kicks in [all the more reason to give Justin a call].

 

Cheers, Brendan

 

 

I too have a Dynoxax "super turbo" installed on my 2001 Z28 (Sara), and it is a free flowing design (inside) and is relativley (sp) quiet. I have the police follow me from time to time :) with their windows down to the right of me (on freeway), and I have never been pulled over for loud sound.

Posted

Hey AGT, glad too see you pulled the trigger on your muffler! I have the same 14" Magnaflow and I love it. Cruising at 75-80 it disappears, even when its in 4 cyl mode there is no annoying popping. But when I lay into it t sounds great.

 

 

Couldn't agree more. Its like they made it specifically for this engine. Thanks for the suggestion. I love mine.

Archived

This topic is now archived and is closed to further replies.

  • Latest Articles

  • Posts

    • Pryme ! I was thinking of adding one to my 2024 6.6 gas  . Could you elaborate a bit more on your statement  Thank You 
    • What a wonderful result! Great story telling to. You are quite multifaceted sir.  I'd keep it. Four is my limit too and yet we have five as well. One assigned the 'salt car' to do all those tasks you hate to ask of your 'Save for Good" crowd. 😉    Don't forget the antifreeze.    The Iron 4.3 is a favorite of mine. 
    • Thanks Buck Wallace ! The more owners that tell me they are getting the same noise the more comfortable I will be with it !
    • Ancillary parts to the lower intake and connections went together without issue.   There was a brief pause when I leak-tested the fuel lines and injection system. Fuel was spraying all over. Lovely. O-rings weren't sealing the fuel lines to the spider, and inbound line was leaking at schrader valve, leaks at both flange nuts. It's moments like those when you just want to set fire to the whole shop, and be done with it. I was mostly enjoying the project up until that point, and was tracking to an agenda of having a running Blazer and a cold beverage in hand by dinnertime.    I found some larger Viton o-rings for my spider and some grease to get them to seat. One leak solved. Swapped fuel line Schrader core for old core. Still leaked. Swapped entire valve for old valve. Leak solved. Nudged the flange nuts a little tighter on the connections. Another leak solved. I could cycle the key / prime the pump and the intake was staying dry.    Reassembled the upper intake, with 10,000 vacuum lines, and filled the cooling system with water* (this is temporary, I'm not done with the cooling system yet).   Showtime!!   Cranked it over and smoke billowed, it was running rough. CEL illuminated and began flashing. P0300 and I somehow tripped a code for the TPS sensor, voltage low.    There's nothing as unrewarding as a vehicle that won't run (and produces the same code/problem) after hours of research and work.   Clearly I was in over my head. Was the timing off, did I stab the distributor incorrectly? Is the new distributor bad? With my limited OBD 1.5 data stream I really don't have a lot of parameters to see. The engine was pulling mad timing again (flooding?).   Think, Atlas, think.   1-6-5-4-3-2. One, six, five.....four, three, ....two. Wait a second. That makes no sense. 1 is the forward cylinder on the driver's side, so 2 should be the forward cylinder on the passenger side, not 6.    I can't believe it, but I'm looking right at it. Swapped 2 and 6 on the distributor and turned the key over, and...   It fired, coughed and stumbled, smoked, and then settled into a smooth idle. The scanner showed no codes, no lights on the dash, and the throttle was nice and responsive to gentle revs while it warmed up.   It's working!!! IT'S WORKING!!!   I paused for a late dinner, no cold beverage yet. I was determined to do my shakedown run. Did a basic safety and fluids check one more time and then went out and put almost 70 miles on it last night. She's a runner, runs good.   Came home and did a post-trip, post-mortem. The underside is dry *except* for where the last owner RTV'd the snow out of the intersection of the timing cover and oil pan. He said he had replaced the timing cover seal, but, my dude had clearly done it incorrectly and then tried to hold back fate with black RTV. Never works.   Yesterday morning I replaced the broken driver's door mirror. As much as I hate cheap Chinese parts, thank goodness for cheap Chinese parts. I think an entire new power mirror assembly cost me like $30, and it works perfectly. Replacement tail lights (faded, and one was busted) ran me about $12/side. I have a door pin kit ready to go in because the driver's door sags just a little and I want to fix that because there's nothing sadder than a saggy door.   I don't know what's next for this rig. Half of me wants to take some nice photos (there's a park nearby with a HUGE American Flag that always seems to be catching wind) and throw it up on CL/Marketplace for a couple grand and see if it flies. The other half of me... I've got a sweet running S10 Blazer that's been keeping my mind off of whatever I'm going through right now, and it's bringing some joy, and is cheaper than therapy. Maybe I'll keep it around for a little while. However, this is my 5th vehicle, just for me. 4 is really my limit, but they are not junk, so need very little attention. I don't know...there's a point where it's just too much and I don't see owning this truck long term. But I solved its major problem, got it running, so I'm going to stick a feather in my cap for now.   Sometimes we just need to get our hands dirty and fix something in the physical world to gain some satisfaction.
    • Happy 4th of July! Be safe out there tonight     
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...