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Magnaflow 19534 - anyone try this set-up yet?


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  • 8 months later...
On 12/27/2021 at 10:03 PM, RCF71 said:


I have heard a few Magnaflow systems, had one myself years ago.

 

I want to eliminate the flappers as well without getting drone/weird sound.

I just had a Magnaflow 12259 on a '21 5.3 single exhaust RST put in and it sounds awesome but I did not want anything annoying or crazy Loud. I drove to a shop 25 miles from me (MA) because of reviews I read online. Installer is very important in my opinion. Removed the stock muffler and added about 3 feed of stainless pipe towards flex pipe. Removed flapper, kept resonators but added a 4 inch od stainless steel tip. All welds and added pipe is SS. Shop did a great job and had me in and out in 45 mins. Sounds deep and clean without being gurgly or flappy. Really sounds like it should have sounded all along and yes throttle response is better, flapper is a real limiting factor in the way the stock mufflers exhaust.  

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