Exhaust Performance Difference?

**MWright936** · 07-13-2008, 08:02 PM

Ok, I'm sure this has already been discussed, but I couldn't find this question addressed directly.

The exhaust set-up I want to get is a single-in, dual-out Magnaflow with chrome tips exiting out the rear corners. I've gotten a quote of $360 for that set-up at a local muffler shop, which I've been told is a great deal. The thing is, I'm on a really tight budget.

I've also considered a direct muffler replacement with a Magnaflow and a tip, which would be MUCH cheaper. My question is: would it be worth it to wait until I have the money to get the dual set-up, or should I go ahead and get the muffler replacement and start saving for a programmer? I'm not looking for anything loud. As far as sound goes, I just want a deep, mellow tone. However, I am hoping to get a mileage increase from the application. I figure I wouldn't get much, if anything, from a muffler replacement as far as performance goes, but would I expect to get anything drastic from the dual set-up? Thanks in advance for the advice!

P.S. I already have a K&N intake.

**sheep** · 07-14-2008, 01:16 AM

as far as looks and the way YOU personally want the truck i would say wait a while and get the dual-out, i think you will be more satisfied in a way that you waited to get what you wanted from it. as far as preformance gasoline engines need a certain amount of backpressure, with the dual you can more flow but im not sure it would come back where is probably wouldnt hurt you but im not sure it would benifit much either. im sure someone else can answer that question. but i do think you should go with the dual-out, i always see dual-out going out the rear, never the sides, which i think the sides would be much better place!

**omegafiler** · 07-14-2008, 02:44 PM

The dual exhaust setup is going to look and sound better. So if you're going to do a custom exhaust, that's the way to go. But a tune is always the best bang for your buck as fas as performance goes. I'd do both. For the exhaust, if you go the cheap route, you'll just end up spending more later to make it the way ya want it.

**MWright936** · 07-14-2008, 05:59 PM

Thanks for the input guys! I think as far as looks and sound go, I would be happy with either set-up. I read that Kris (Finalday) got a Magnaflow muffler replacement and said it sounded great. I was mainly leaning toward the dual set-up because I thought it would give better performance increases. However, if there really won't be that much of a difference, I'll go with the replacement with a tip (maybe a slick dual tip or something) and save for other things.

**MWright936** · 07-16-2008, 05:58 PM

BUMP

My main question is:
Would I get a considerable difference in performance between a single-in, dual-out set up compared to a muffler replacement application?

**omegafiler** · 07-16-2008, 06:18 PM

Nah, nothing really noticable. It's all about sound and looks.

**MWright936** · 07-16-2008, 07:29 PM

Cool, thanks!

**0321** · 07-21-2008, 07:01 PM

I was told by an individual that installs custom exhaust systems (race cars and the such),"That you are better off with a single instead of a dual (MPG issues). Now he had said that you can pick-up duals directly out of the muffler. My 2 cents.

**ct9a** · 07-22-2008, 12:31 AM

Originally Posted by 0321

I was told by an individual that installs custom exhaust systems (race cars and the such),"That you are better off with a single instead of a dual (MPG issues). Now he had said that you can pick-up duals directly out of the muffler. My 2 cents.

I was told the same at a performance shop too.

**chad.j.bordelon** · 07-28-2008, 05:13 PM

I have duals, and i dont know if it would have been better to get the single, but i can tell you that the dual flowmasters from day one I noticed a considerable change in MPG and performance.