70 series flowmaster

[Tom Williams]

Hey all! I was curious if anyone was running a 70 series flowmaster. How do you like it? My truck has the factory duals and I’d keep the resonators. Just wondering if it would drone bad.

 

[Ramv]

I have a 40 series and no resonator with dual out. There is some drone (long story on why I ended up with the Series 40) but it really isn't bad other than just lugging the engine at low rpms. I think Series 50 Deltra Flow (which I had on a different truck in the past) or Series 70 would be fine, especially with resonators.

 

[04fxdwgi]

I put a 70 series on an F150 (converted to dual tail pipes) and it was no louder than the stock muffler.