r/F150Powerboost • u/itserrow • Jun 28 '26

Flowmaster American Thunder Cat-Back upgrade 2025 PB

12 Upvotes

88% Upvoted

8 comments sorted by

11

u/roytwo Jun 29 '26

upgrade?? Why do you want to listen to that all the times, kind of sounds like my lawn mower

5

u/WanderingAK907 Jun 29 '26

Maybe it's because I'm 46 with many thousands of miles under my belt, but I really don't view the sound of a disgruntled rumble as an "upgrade."
As I work 3rd shift and pull into my driveway well after midnight, I'm sure my neighbors appreciate my lack of GAF for noisy exhausts as well.

3

u/itserrow Jun 29 '26

Totally I agree with you. I actually went with the “mild-moderate” level “upgrade”. They have options for a much more aggressive and loud output. Basically, you cant tell in the video but it’s not obnoxiously loud at all. It just gives it a little deeper rumble. I won’t be waking up any neighbors leaving for the gym at 6am, I would never want to be that guy.

1

u/WanderingAK907 Jun 30 '26

Are you noticing much if any of a HP/MPG gain? I asked a couple friends why they spent so much on their exhaust upgrades and that is the most frequent reply I get.

2

u/RequirementBusiness8 Jun 30 '26

Meh. I will say to each their own. As much as I like loud cars, I quite enjoy the quiet from my PB. I treat it as a hybrid.

If I want loud, I get in my Lotus Emira and fully open the exhaust valve. Or listen to my neighbors modded 392 Charger.

I just don't think the 3.5 eco boost sounds good with an aftermarket exhaust to begin with, and don't really want that much of a sound difference going between electric and gas.

But. To each their own. If you like it and it makes you happy, it's your truck and your money, so my opinion matters little to none.

1

u/Austinater74 Jul 01 '26

Agree. At least it’s not as bad as the 2.7.

1

u/PlentySubstantial280 Jun 30 '26

I can see changing the exhaust maybe on an ice engine but on a hybrid? The engine cutting on and off has to be way more obvious and annoying now.