aftermarket exhaust

[buffblazer]

seems like quaility and performance doesnt seem to add up anymore with new stuff, ya never know if the numbers lie or what so with everyone going with personal experience, what have yall found to be the best sounding and performing exhaust.


the only two i know anything about is flowmaster and magnaflow. now before people pipe in about having flows with magna tips, and vise versa, thats not what im wanting, to me putting tips on just changes the sound of the muffler so you never know wha the true sound of the muffler is unless you go with no tips,

i dont want to sound like a f1 race car i love the deep throaty sound. this will be going on a 5.3 07 chevy silverado classic, i would also like to be able to hear myself in the truck so loud on the punch but not droning.

plan on going headers back through true duals. so what yall recommend?

 

[xCaliK5x]

Well, I have a friend at Magnaflow here in SoCal so I get the in's and outs of stuff. My dad has a kit on his '09 5.3 Silverado, not too loud, just gives it a more aggressive tone. With headers, I can't help you, other then by telling you yes, it will improve sound if they are equal length, its not going to make it louder, but they really, IMO aren't worth the cash on a stock motor, let alone a truck where it gets gains up top. One restriction is the cat. They aren't nearly as restrictive as they were 20 years ago, but still have a little gain. A high flow cat's performance nowadays is on par with straight pipes. I have a complete turbo back from them on my VW including a highflow spun metal 100 cell cat as you can see in my sig, its far from restrictive. With a straight pipe, it makes about the same amount of power depending on day and dyno. My wifes BMW also has one, and now that my K5 isn't puking oil all over, its next (no, they do not make a kit, I will see if he wants to fix that if there is interest). Tips will make no differance in sound. Its all muffler and tubing size, and quality. For your truck, they make a stock rear side exit, duals side by side infront of the rear wheel, and duals out the back. Tip options vary by your taste. If you just want to do a cat back, it takes about an hour on a garage floor to do. Hope this was some help to you.

 

[dfl701]

i wouldnt put headers on a new truck either but thats just me. i would go cat back and split the pipes just so its cheaper

 

[zombiyjay76]

Do not know if you ever get to northglenn. But I had my exhaust done there around '04 or 05 at exhaust pros. I had them install a cat back system on my 90, been running that ever since and no issues. After my eng rebuild I added headers and a new y pipe to the same cat back sys. I have the ex pros equivalent to a flow master "not sure which one" but it is kinda loud, it also makes the " drone " noise inside the cab. Could go a step down from the one I got.

 

[Cornfield creations]

The cats on the new trucks have practically no restriction. If you do a backpressure test up in front of the cats, including the stock exhaust, you will see 0- 0.5 lbs. of backpressure. Thats practically nothing. The newer chevy's have an awesome sound with a magnaflow. Smooth and deep. If you add tips it will change the sound, mainly louder and more resonate at the back.

Flowmaster will be louder inside. IMO the flowmaster's are annoying in the newer trucks. You buy a newer truck for ride quality and quietness. Not to have your ear drums beat to death on the interstate, but to each his own.

We have been an authorized magnaflow dealer since 2001 when they came out, and their overall quality far surpasses flowmaster.

Lifetime warranty and all stainless steel. Better flow, and a much cleaner sound.

There again my opinion. We sell magnaflow 9 to 1, and everyone is always happy with their choice.

 

[bigred88]

No one has mentioned what series you're looking at though. I've got a friend with an 03 silverado with a 5.3. He has long tube headers and a y-pipe, can't remember the exact size, but I think they're 2.5" headers into 3" the rest of the way back. He's running a flowmaster 70 series with no cat, and has a resonator before the muffler (not sure if that was stock or part of his exhaust kit). It sounds nice. It's got a real nice rumble to it, but being a 70 series it doesn't make you deaf either. In the truck with the windows up you can only hear it if you really get on it.

I like the 70 series for a more quiet muffler that still has a nice tone to it. I run a 50 series in my blazer, but that's probably louder than what you're wanting. If you get a 40 or 50 series, that's when you'll start getting louder inside. The 70's are nice though.

 

[rocknerd]

i dont think much sounds better than a flowmaster. I think the 40 series would be too loud but the 50 series might be ok for you.. never heard the 70 but it seems like it might be a bit quieter. i don't know if you'll wheel it, but it'll take a beating too. i have a borla. dont like it.

 

[dhcomp]

You won't be disappointed with a 50 series flowmaster. Have run them on both my trucks, and don't want to change the tone for anything!

 

[4X4HIGH]

I'm running a Gibson muffler and 3" single exhaust. The muffler has a nice tone to it when cruising around and it does get throaty when you hammer down. I've been running this set-up for about 8 years now without any issues. The Gibson muffler is a flow through design so not alot of restriction. http://www.gibsonexhaust.com/sftmufflers.html

 

[4xcrazy]

I was just going to comment on the Gibson exhaust as well. I wasn't really too into them mainly due to their prices, but after actually hearing the setup on an uncles truck the other day, i can now say i most likely will be changing over to them, most definately over the Flowmaster stuff.

Sounded awesome, nice "throaty" sound, but not overly obnoxious, had a nice smooth rumble tone at idle, opened up some with the throttle but not annoying.

 

[bigred88]

obnovious

never heard that one... kind of like it