mirage2991

ok guys, I can't decide which ones to run on my 69 BB. If any of you have experience with any of those 2, in a true dual configuration, let me know. I'm wondering more about the sound difference between the 2. The exaust will be dual 3" and turn downs.

90Form350

the 40s sound good, my friend has them on a 72 Chevelle with a ZZ4 crate. They sound great with headers and a 2.5 inch pipe, and they can only sound better with a BBC and 3 inch pipe .

90Form350

Also, I had them on my 87 Monte, stock, with 2.5 inch pipe in a one pipe into 2 muffler config. All my friends said it sounded good too.

(BTW im a big exhaust sound freak )

SteveSpohn

Are you talking the Dynomax "bullet" mufflers? I wouldn't run them on a street car myself. I have dual 4" exhaust on my 86 Z-28 and I used the 4" bullets because of limited ground clearance (obviously).

The car does not sound any different then when I had open headers.

Steve

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Spohn Performance: F-Body Chassis/Suspension Specialists

mirage2991

I'm talking about the "welded oval race muffler" with the strait thru design.

mirage2991

well I have given in to the peer pressure....got a set of 2 chambers 40 serie flow's coming my way...3"...hehe...I can hear it roar already...goody good

thanks for your time!