So I'm looking to get some serious noise out of my Oldsmobile, I have a 2 1/2 exhaust with long tube headers right now, I'm looking at the flow master 40 series. Will that give me a loud rumble at WOT, and a nice sound at idle?

 

that should make some/enough noise for everybody concerned

 

Should get you what your after.

 

Look at my sig video. I have Flowmaster 40s. Or go to youtube.com and search zzz281996. I have a few vids of the car at speed with this combo. It should give you a good idea of what they sound like and if it's loud enough for you.

 

here is my 355 sbo with 2.5 in x pipe and hooker aero chambers. No tail pipes.
the 4:40 mark is where wot comes in.

 

Copper, your car doesn't sound a heck of a lot louder than mine. Like the drive along! Your door is unlocked! LOL! Next time, you need to stop and light the hell out of 'em!

 

you will have to ride in it to appreciate the sound lol. and which door is unlocked. I never lock my doors or roll up my windows. This morning i went and picked up 8 2x4's and stuffed em in the olds lol. Just shut er down and went in lol.

 

Your driver's door! You can see it in the vid. I don't lock mine either.

 

hahaha yeah kinda sticks out like a sore thumb in the vid lol. I guess i will have to do a burnout video in the future lol.

 

Sho nuff! Really like your car and your attitude!

 

Thanks !!!

 

MY 442 with the 455 has Flowmasters, great sound. The rumble as it chugs along just off idle and then when you open it up- love it.
Not sure of what series I have.