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So I just ordered this muffler yesterday.  I called Borla to ask them if I should remove the resonator or leave it and they told me this muffler was designed for crate engines and is not the correct muffler for my truck.  Seems some ppl just swap this muffler and it sounds virtually the same to them as the catback system. Anyone on here do this yet?  I have a 2020 6.2L RST and since I already ordered this I figured I'm going to just swap the muffler, delete the flaps and send it!  What do you think?

https://www.amazon.com/gp/aw/d/B01CO4K694?ref=ppx_pt2_mob_b_prod_image

Edited by Philipgonzales3
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First cold start with the new muffler.  Full disclosure, the muffler is only halfway welded in, the shop ran out out of gas for the welder!  Told me to go back today, oh well, not a big deal to me.  I haven't even paid yet lol.  Was going to remove the resonators but not 100% sure as I'm loving the way it sounds currently.  

 

 

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On 9/22/2020 at 6:28 PM, Philipgonzales3 said:

So I just ordered this muffler yesterday.  I called Borla to ask them if I should remove the resonator or leave it and they told me this muffler was designed for crate engines and is not the correct muffler for my truck.  Seems some ppl just swap this muffler and it sounds virtually the same to them as the catback system. Anyone on here do this yet?  I have a 2020 6.2L RST and since I already ordered this I figured I'm going to just swap the muffler, delete the flaps and send it!  What do you think?

https://www.amazon.com/gp/aw/d/B01CO4K694?ref=ppx_pt2_mob_b_prod_image

Thats what I'm doing, flap delete and borla muffler.  The ATAK will work.

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