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Posted

im about to invest in an exhaust kit/system on my 08 sierra.... and im trying to see what everyone has and what sounds the best.....ive heard flowmasters and they sound pretty good......but ive also been told that some exhaust sound terrible on the highway b/c of the AFM.....so is there really any truth to that.....?

Posted

I was in your position about a month ago. What every told me was it depends on your personal preference. Do you want it real loud? Or do you not want interior resonance? Also, people will differ on the same setup. Loud to one person might not seem like anything to someone else. Some are more sensitive to drone/resonance than others. You will get about every big name exhuast setup mentioned to you by people and their personal preference. Flowmaster, Magnaflow, Borla, Dynomax, etc.

 

What I did was went on Youtube and just searched different exhaust sounds from full-size pickups. I ended up getting a Flowmaster Super 40 straight muffler swap and I really like it. I like 'em loud though. I haven't had the chance to hear it outside yet except for idle because no one besides me has driven it since but interior I really like. With radio off and windows UP I can it idle at a stop and it's got a mean growl at take-off with "sweet spots" at about 1500-1600RPM's and 1900-2000RPM's during normal driving. I can't hear any thing really at highway speeds. Just a light growl.

 

What kind of engine do you have? That will make a bit of difference too. I've got a 4.8L V8 so I don't have to worry about AFM and can't comment on that.

Posted

I have glasspacks on my '07 Silverado and love 'em. Nice and loud and I get lots of compliments on the way it sounds. I have the 5.3 in my truck and I have disabled the AFM via the Predator so I don't have to listen to the ricey sound when it shoots in to V4 mode.

Posted
Yup, its a hand held programmer. AFIK, its the only hand held programmer that lets you disable the AFM.

 

how much did the programmer cost?

Posted

the corsa....is it loud? im not looking for anything defening but i do want it to be farely loud.....

Posted
Yup, its a hand held programmer. AFIK, its the only hand held programmer that lets you disable the AFM.

 

how much did the programmer cost?

 

 

 

Get a Black Bear Tune, a handheld programmer aint worth the money.

Posted
im about to invest in an exhaust kit/system on my 08 sierra.... and im trying to see what everyone has and what sounds the best.....ive heard flowmasters and they sound pretty good......but ive also been told that some exhaust sound terrible on the highway b/c of the AFM.....so is there really any truth to that.....?

 

 

My friend has AFM on his truck. there is a slight difference in the sound when it kicks into AFM. BUT it rarely comes on. Also a good tune will get rid of AFM if you find it annoying.

 

Also as for what brand...don't get Flowmasters!!! I got a Goerlich's Xlerator system for mine...it is very similar to Magnaflow but at half the cost (mine was $250) and to my opinion better than Magnaflow! Very nice beefy deep sound. Quiet when you want it to be and loud when you want it to be. Very good throttle response, performance, and MPG gains! Look up your truck under the performance catalog at this link: http://www.goerlichs.com/catalog.asp

Posted
im about to invest in an exhaust kit/system on my 08 sierra.... and im trying to see what everyone has and what sounds the best.....ive heard flowmasters and they sound pretty good......but ive also been told that some exhaust sound terrible on the highway b/c of the AFM.....so is there really any truth to that.....?

 

 

this is mine when i did it it was only $150 bucks to :P

Posted

I like straight pipes, but then again alot of people dont like it. I have heard alot of 5.3s with straight pipes or even just a muffler delete and i think they sound awesome. I personally dont have a truck yet because of school and money doesnt grow on trees but when i do get a truck its probably just gonna be straight piped with the cats. I have heard true duals is kinda hard to do with the O2 sensors and cats on these newer trucks. But its what you want, not us. Its your truck, and make it the way you want it. I would say if you really want it to be loud then go with a straight pipe. If you want a nice tone then go with a catback of your choice or even a direct fit muffler of your choice. It also depends on how much you want to spend.

Posted

yeah not looking to spend a lot of cash but at the same time i don't want it to sound like shit

Posted
im about to invest in an exhaust kit/system on my 08 sierra.... and im trying to see what everyone has and what sounds the best.....ive heard flowmasters and they sound pretty good......but ive also been told that some exhaust sound terrible on the highway b/c of the AFM.....so is there really any truth to that.....?

 

 

this is mine when i did it it was only $150 bucks to :lol:

 

 

 

HAHA, man you are the dude I was arguing with on Youtube. Well not arguing, but maybe not believing you got 27+ MPG with your truck.

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