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How loud will I be?

TheLPGuy

By TheLPGuy
in Engines & Drivetrain

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SouthPawCO Enthusiast

SouthPawCO

Posted
Posted

I would be interested in hearing a sound clip of it. I can't imagine it is enjoyable to drive and would irritate all your neighbors and anyone next to you. I may be getting old but next week I am getting an exhaust done on mine (3" Aero duals). I had an Aero 3030 side dump on my '05 and it was perfect. Little rumble and idle and opened when you punched it.

TWick Enthusiast

TWick

Posted
Posted

I'm going to have mine removed and 3" ran back to the muffler. I have a borla xr1 and mandrel 3" tail pipe. It was quiet until I put a factory 6.2 tip on it and a K&N intake now the exhaust seems much louder. I'll still run the 3 to replace the factory 2.75 lead pipe and remove the Cali cat. Will it make a hill of beans? No but it's my fvcking truck and I'll do whatever I please. Lol. I'll keep y'all posted.

 

 

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Im looking into getting the xr1 any way you could post a sound clip? Also are you running a 5.3 or 6.2?

TheLPGuy Enthusiast

TheLPGuy

Posted
  • Author
Posted

I would be interested in hearing a sound clip of it. I can't imagine it is enjoyable to drive and would irritate all your neighbors and anyone next to you. I may be getting old but next week I am getting an exhaust done on mine (3" Aero duals). I had an Aero 3030 side dump on my '05 and it was perfect. Little rumble and idle and opened when you punched it.

It's surprisingly quiet in the cab. Can't really hear much of it unless the window are down. Once I put the new part in I will do a sound clip. I can also do a cold start clip and a warm start clip of the current set up tomorrow.

SouthPawCO Enthusiast

SouthPawCO

Posted
Posted

Don't take me wrong, it is your truck so by all means the louder the better for you. I want some rumble but not something I can't use bluetooth on the highway with. I am still debating if want to try the Flowmaster super 10 or if that will be too aggressive.

TheLPGuy Enthusiast

TheLPGuy

Posted
  • Author
Posted

Don't take me wrong, it is your truck so by all means the louder the better for you. I want some rumble but not something I can't use bluetooth on the highway with. I am still debating if want to try the Flowmaster super 10 or if that will be too aggressive.

GM did really well with noise cancelling inside the cab. If you don't want as loud as the video I will post the other option I suggest is leave all cats and resonators and just delete the muffler.

victorsdaddy Enthusiast

victorsdaddy

Posted
Posted

They will figure it out when taken in for smog. The 2 cats close to the motor are pre-cats with the back one being the main cat. I had one of the pre-cats fail and clog the main cat. All caught at smog. I'm a hot rodder at heart but I don't mess with smog if it's mandated to be on there. Better off putting high flow legal cats

 

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TheLPGuy Enthusiast

TheLPGuy

Posted
  • Author
Posted

They will figure it out when taken in for smog. The 2 cats close to the motor are pre-cats with the back one being the main cat. I had one of the pre-cats fail and clog the main cat. All caught at smog. I'm a hot rodder at heart but I don't mess with smog if it's mandated to be on there. Better off putting high flow legal cats

 

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My state doesn't do smog testing! It's a beautiful thing.

Zachlovesfood Enthusiast

Zachlovesfood

Posted
Posted

OP, hoping one day you'll consider long tube headers!

I wanted to delete the third cat on my truck too, but decided to save for the whole shabang. 100% satisfied with the results.

 

 

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TheLPGuy Enthusiast

TheLPGuy

Posted
  • Author
Posted

OP, hoping one day you'll consider long tube headers!

I wanted to delete the third cat on my truck too, but decided to save for the whole shabang. 100% satisfied with the results.

 

 

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To be honest I really want them but there wouldn't be a way I could get the whole set up till next spring. I have no ambition to wait. I was going to go to the exhaust shop today but I'm trying to convince my self to wait by doing other truck projects today. Today's project is installing a CB radio!

Zachlovesfood Enthusiast

Zachlovesfood

Posted
Posted

what about high flow cats?

I'm pretty sure stock cats are high flow, but deaden the sound pretty well. The first two cats will catch the majority of the sound, so aftermarket cats might not be a bad idea if you're looking for more sound.

 

 

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  • 4 weeks later...
chrislim Enthusiast

chrislim

Posted
Posted

I just did this, mines a 6.2 with muffler and resonator delete and honestly isn't that loud, idle has a nice rumble and on wide open throttle it is loud but not overbearing. I just did the third cat removal yesterday and on start up in terms of how loud it is it isn't louder but sounds a bit different, and crackles and pops on deceleration as well as sounds a lot better up high up.

MSPT Enthusiast

MSPT

Posted
Posted

There is no place in North America where a straight pipe is legal. Feel free to double check but I am 100% positive on this. I am also pretty sure you can get in trouble for selling a vehicle in CA without a CA cat, someone from CA can correct me maybe.

 

My 2c it just seems silly and a total waste. If you want louder in the cab you should get a Flowmaster Dual Out Dual side Super40+. This would allow you to remain incomplete compliance and probably make a much bigger impact for around 6-800 bucks.

 

Do what makes you happy though.

 

Off topic, but fun fact.

 

In some parts of Canada, including my province, the vehicle only has to be inspected when sold. Once it passes as long as owner ship doesn't change you can do whatever you want to it. I had a cat-deleted Subaru with a 3 1/4 inch titanium exhaust that was louder than some jets, that thing spit flames on down shifts. My current 05 sierra has no cats or resonator, just a flowmaster 40. We have almost zero laws surrounding modifications here :driving:

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