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post Nov 26, 2012 - 7:48 PM
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eldrewado

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So I made my own exhaust on my GT. After the stock resonator i upped the diameter of the pipe to 2.25 then it goes into a long glasspack muffler then a downpipe just before the rear axle. I seem to be getting better gas mileage, so i want to keep my flow through design, but its so LOUD. I ordered 2 vibrant resonators I heard one is good and two is better and they are flow through. The question is....Should I build the system resonator-resonator-glasspack,
resonator-glasspack-resonator, glasspack-resonator-resonator, or just leave the glasspack out?
 
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post Dec 9, 2012 - 9:27 PM
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TRDweaponX



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I have a M2 performance header (ebay header lol) and that's it. The rest of the exhaust is completely stock. It sounds pretty good (not like a fart can) and I get 27 to 30 mpg (5sfe). It's my understanding that the 5sfe doesn't make enough power to need the exhaust modified. If you reduce too much back pressure you could end up losing some torque.

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