Dual Exhaust question

[RyanZ71]

Would adding dual exhaust offer any NOTICABLE increase in engine performance? I don't want a loud exhaust system, I am very happy with the way my stock setup sounds, seems like every big truck owner around here has to have loud dual exhaust.. not interested in loud but more of better performance.

 

Next if I do go Dual I wouldn't want straight pipes comming out the back, I'd like it to look like the stock exhaust comming off the side, is that possible?

[Amra]

Would adding dual exhaust offer any NOTICABLE increase in engine performance?  I don't want a loud exhaust system, I am very happy with the way my stock setup sounds, seems like every big truck owner around here has to have loud dual exhaust.. not interested in loud but more of better performance. 

 

Next if I do go Dual I wouldn't want straight pipes comming out the back, I'd like it to look like the stock exhaust comming off the side, is that possible?

 

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I dont know the answer to your question. But i will tell you what im doing to my 05 silverado. I found a muffler from flowmaster called a series 50 SUV. its supposed to be freeflow with a 3" in and 2 2 1/2" inch out. I also wanted performance and very little noise in my cab and this says it is made for that. Also im having mine come out the side also.

 

Wont know for a week if it helps but at the same time im getting an airaid induction sytstem installed.

[Nick99Chevy]

I dont know the answer to your question.  But i will tell you what im doing to my 05 silverado.  I found a muffler from flowmaster called a series 50 SUV.  its supposed to be freeflow with a 3" in and 2 2 1/2" inch out.  I also wanted performance and very little noise in my cab and this says it is made for that.  Also im having mine come out the side also.

 

Wont know for a week if it helps but at the same time im getting an airaid induction sytstem installed.

 

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I had a Flowmaster 50 SUV on my '99 and it had all kinds of resonance in the cab. Make sure you get a Delta Flow if they have one.

[OUMike]

I went with the Magnaflow (see Garage for pics) and I noticed slight gas mileage improvement. I just drove from here to New Orleans (about 5 hours from Houston) and averaged about 20 mpg on a 94' with nearly 200k miles. I also noticed a little more zip low in the power band.

[Cranky1]

I recently put a Flow master 50 series on my truck. It is one 3" in and 2 1/4 duals pipes out that exit to the side just over the rear shacks with 3" chrome tips, the muffler is 2 1/2 out, but I had the smaller tail pipes so it would be quieter and I would not have the droaning sound like I had with a 40 series muffler on a 97 sierra 5.7 litre.

 

The end result is I get about 1 mpg more in urban and highway driving, appx 3 mpg while towing and my engine temp is cooler. I also went with the K&N drop in air filter the same day I had the exhaust done, so I don't know what made the most improvement the muffler or the air filter.

It is quiet at an idle, sounds great when you step on it on heavy or light excelleration.

 

I can say that I think I lost bottom end, just enough to notice the difference. I still get a slight droaning at 1600 to 1900 RPM, wife hasn't complained so it can't be all that bad.

[hihosilverado]

If you like the quietness of the stock setup then you sure as heck dont want a flowmaster anything. They are decent mufflers, but just about any of them will be loud in the cab at certain rev ranges.

[sablowme]

hey z71 i had played with alot of differnt mufflers and know what your talking about if you want a stock sound maybe a little rumble but deffintly horsepower increase i would go with a Corsa touring system these systems not only are a gm licened product but have a very moderate tone that is real decent at idle and quiet at cruise but noticeably louder at full throtle. but honestly if you want a louder system then go with the sport system its louder at idle and much louder at full throtle but still quiet at cruse

[Black-Z71]

Trucks are supposed to be loud man...wouldn't have it any other way.