40 Series Delta Flow

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Jun 10, 2003 | 08:53 PM

Rhood

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New User

Joined: Jun 2003

Posts: 23

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From: Canoga Park USA

40 Series Delta Flow

Ok who here's owns Flowmaster 40 Delta Flow SI/SO replacement muffler on they truck. Can someone tell me how it sounds, especially in the cab. I'm looking to buy one this week.

Please Help

RHood

Jun 10, 2003 | 10:15 PM

FordCowboy2000

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Joined: Apr 2003

Posts: 140

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From: Pennsylvania

40 Series Delta Flow

I have one.....it is semi loud in the cab at about 1500 to 2000 RPM but other than that it is fairly quiet.....I want to make mine louder lol. But i love it it is real loud on the outside and not bad on the inside (too quite for me though)

--Cowboy

Jun 28, 2003 | 08:21 PM

bigbullhunter

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Joined: Jun 2003

Posts: 13

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40 Series Delta Flow

i have a 40 series delta flow with the cat takin off and it sounds louder then my friends original 40 series with cat

Jul 2, 2003 | 11:22 PM

Fordman350

Senior User

Joined: Oct 2002

Posts: 166

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From: Seattle USA

40 Series Delta Flow

I also have a 40 series with dual pipes. The sound in the cab, as mentioned above, is not bad. But it sounds absolutely awesome from outside the truck. I always have my windows open so I can hear it lol.