Installing/Hanging Flowmaster Muffler

whitelightning2 · Posted: Tue Nov 18, 2008 12:13 pm Post subject:

All Flowmaster mufflers (regular and Delta atleast) drone at about 2500-2700 RPM. I had regular 40 series muffs on my Trans Am and they did it too, but the tone of a 350 is different so it wasn't as bad.

the '660 is a very loud engine, and Flowmasters make it worse.

But it's cool if you like it, i enjoyed it for a few years but i got tired of setting off car alarms. I switched to Hooker Aerochambers because they are a bit deeper, flow better and don't resonate like the Flowmasters do.

pmk138 · Posted: Tue Nov 18, 2008 7:31 pm Post subject:

Yes it does get a little annoying at times. My car is an automatic and when I am on the interstate, my RPM's are at 3200. It doesn't seem to bothering me at that time. But when I am just crusing through town at 1500 to 2000 RPM's, it does make me shed a small tear

I guess there is nothing that can be done to reduce the resonation, if that is a word.

superbee · Posted: Thu Nov 20, 2008 11:04 pm Post subject:

Electric cutouts FTW!

cobra17st · Posted: Fri Nov 21, 2008 7:50 am Post subject:

whitelightning2 · Posted: Fri Nov 21, 2008 8:42 am Post subject:

pmk138 · Posted: Fri Nov 21, 2008 10:47 am Post subject:

What cutouts are you referring to?

superbee · Posted: Fri Nov 21, 2008 5:34 pm Post subject:

ya thats what im talking about. either run a stock setup with cutout, or like on my blazer (this would be a little bit harder on a j-body to fit but still doable i think) Was ran a nice and loud exhaust with pipes exiting out each side, and i also have another exhaust including a muffler from a 4 cyl gm car (jbody maybe i think) and i use the electronic cutout to switch between the two setups... I freaking love it, loud when i want, flip a switch and get on interstate and its dead silent. Also have another cutout by headers for really loud

I could draw up a diagram if ne one cant understand what im describing, but the cutouts im talking about are qtp or equivillant, they are pricey tho, i think 175 a piece. Check them out on summit.

steve1989 · Posted: Sat Nov 22, 2008 12:08 am Post subject:

I was thinking of doing dual exhaust, just having the stock exhaust then have the cutout running to a second pipe exiting with like a cherry bomb on it... so I could turn it up when I wanted... Cut outs are too expensive for me though

whitelightning2 · Posted: Sat Nov 22, 2008 12:20 am Post subject:

hazyz24 · Posted: Sat Nov 22, 2008 8:13 am Post subject:

if the drone gets too much for you you can always pick up a camero style borla

i have one on my car with hollow cat it sounded awesome

but im more of a bov sound person i wanna hear pshhh when i shift gears not car alarms going off

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