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post #1 of (permalink) Old 08-15-2001, 08:46 AM Thread Starter
 
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Exhaust Upgrade

Kind of late on the post but I hope I can get some quick feedback. I am replacing the muffler on my '99 Z71 today with either a Flowmaster or Magnaflow. My question is wether or not there is any advantage to having single-in/dual out over just single-in/single-out? Any response would be appreciated.

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post #2 of (permalink) Old 08-15-2001, 10:34 AM
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Re: Exhaust Upgrade

IMHO, I can't see where there would really be much advantage (mostly just something they can advertise to sell the product). I would look more at the specs for both and see witch one has the flow characteristics you want...=0)

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post #3 of (permalink) Old 08-15-2001, 10:54 AM
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Re: Exhaust Upgrade

Do yourself a favor, if you aren't going to true duals stick to a single exhaust line. Its a simplicity issue. Fewer parts and fewer things to break. If you really offroad hard exhaust pipes just get in the way, two exhaust pipes, two things to get in the way! Chances are on that truck you won't see a difference in performance unless you go true duals (IE two cats two mufflers two tail pipes)

If your goal is noise and not performance, then go wih the dual out, stick some giant echo tips on there and go run around with the rest of the hillbillies and kids with Hondas.

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post #4 of (permalink) Old 08-15-2001, 11:48 AM
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Re: Exhaust Upgrade

I had flowmaster on and switched to magnaflow. Flowmaster was louder. I went with the 3" in and out. no noticeable difference in performance between the two

DJ(dude)

post #5 of (permalink) Old 08-15-2001, 01:39 PM
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Re: Exhaust Upgrade

a 3" single in/out will work better. you actually lose a tad going to duals, even if you keep them at 2.25". if you want the look of duals, then go ahead and get them. its just a matter of what you want to do with your truck.

uhm, forgot the muffler. my suggestion is that you find a couple trucks, one with each muffler, and listen to how they sound. then choose which ever one you like best. magna flow is a free flow straight through, and flowmaster is baffled. you'll have different sound, but i have no idea how their performance is in relation to each other.

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post #6 of (permalink) Old 08-15-2001, 06:02 PM Thread Starter
 
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Re: Exhaust Upgrade

First off, thanks to everyone that posted a reply. I was able to listen to both the Flowmaster(stage 2) and the Magnaflow on my truck and I went with the Flowmaster single-in/single-out. It cost me $121.00 for the muffler and installation and I am very happy with it initially. Next upgrade is K&N FIPK or Air Raid cold air intake. Once again thanks to everyone who took the time to help out.

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