Flowmaster Question
Thread Starter
Racer
Joined: Feb 2006
Posts: 480
Likes: 0
From: Springfield MO
Flowmaster Question
I am planning to buy some flowmaster mufflers to be put on my 1980 corvette with the cat cut off. I dont know much about exhaust systems but i was wanting to know what 40 series should i put on there and what size
Safety Car
Joined: Aug 2001
Posts: 3,892
Likes: 13
From: Pettis Performance 565 with two stages of Nitrous Supply nitrous 1.082, 4.61 at 155, 7.17 at 192
Originally Posted by Kid Vette
I wouldn't install 40s. I'm running them and they are LOUD. The loud doesn't really bother me but the resonance between 1500 and 2000 rpm does. And this is with an H pipe.
Le Mans Master
Joined: Oct 2004
Posts: 5,269
Likes: 54
From: Orlando Florida
St. Jude Donor '05
Originally Posted by SIXFOOTER
OK, thread hijack here..
what would be a good sounding street selection in a 2 1/2" true dual setup?
what would be a good sounding street selection in a 2 1/2" true dual setup?
Flowmasters have a very annoying deep tone at 1500-2200 rpm (resonance)...
Dynomax Ultra Flow mufflers are almost as loud outside of the car but a lot (A LOT) quieter inside the car
Available at any AdvancedAuto store, 2.5" straight thru design, welded construction, as heavy as the flowmasters, not that cheap and cheasy crimped design
Race Director
Joined: Apr 2003
Posts: 19,344
Likes: 654
From: Tampa, Florida
Originally Posted by MYBAD79
Flowmasters have a very annoying deep tone at 1500-2200 rpm (resonance)...
Dynomax Ultra Flow mufflers are almost as loud outside of the car but a lot (A LOT) quieter inside the car
Available at any AdvancedAuto store, 2.5" straight thru design, welded construction, as heavy as the flowmasters, not that cheap and cheasy crimped design
Dynomax Ultra Flow mufflers are almost as loud outside of the car but a lot (A LOT) quieter inside the car
Available at any AdvancedAuto store, 2.5" straight thru design, welded construction, as heavy as the flowmasters, not that cheap and cheasy crimped design
I had 40's on my C4 and they were super loud and resonated. they were replaced with dynomax mufflers. The Dynomax's have a very nice sound and tone but are much quieter inside the car.
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Le Mans Master
Joined: Jul 2005
Posts: 5,752
Likes: 4
From: Austin Texas
Originally Posted by SIXFOOTER
OK, thread hijack here..
what would be a good sounding street selection in a 2 1/2" true dual setup?
what would be a good sounding street selection in a 2 1/2" true dual setup?
The ORIGINAL and bestest
Joined: Oct 2000
Posts: 10,009
Likes: 240
From: Toronto Ontario
Toronto Events Coordinator
Alot of opinions on here, and here is another!
Go with Flowmaster Super40's instead of regular 40's. The Super40's make more power, have a deeper tone, and don't have the annoying interior resonance. The size depends on what size exhaust you currently have, or plan to have.
Go with Flowmaster Super40's instead of regular 40's. The Super40's make more power, have a deeper tone, and don't have the annoying interior resonance. The size depends on what size exhaust you currently have, or plan to have.
Safety Car
Joined: Nov 2005
Posts: 3,960
Likes: 572
From: Lompoc, CA. Santa Barbara County
Originally Posted by big_G
I have Flow's (40 series) with an H-pipe. Had too much resonance even after the H-pipe, but much less than without. Added Fat-Mat sound deadener to the whole inner body. Now the sound is very acceptable. (No annoying resonance in the cabin).
Drifting
Joined: Aug 2006
Posts: 1,694
Likes: 0
From: Oregon
I had 40's on my 1980 vette and 12 hours later, i had Dynomax's.. I couldn't hear myself think. They totally sucked. Luck for me, the local muffler shop swapped them out the next morning. I hated them and so did the wife.
Drifting
Joined: Aug 2006
Posts: 1,694
Likes: 0
From: Oregon
Originally Posted by SIXFOOTER
OK, thread hijack here..
what would be a good sounding street selection in a 2 1/2" true dual setup?
what would be a good sounding street selection in a 2 1/2" true dual setup?
Instructor
Joined: Oct 2005
Posts: 143
Likes: 0
From: Independence MO
I agree with the KID...<<If its too LOUD you're too OLD!!!>> I put 2 1/4 Flowmaster 40's on my '77 and they make my little Ol' Stock motor sound MEAN!! I had a raddle in one of them I just found out and took it back to be replaced under warrenty and guess what they found inside of it? NOT a Flowmaster probem but a S K 9/16 wrench!! All black and nasty and pitted........Now where did THAT come from??? Only thing I can figure is that someone put it up the tail pipe peice or when the motor was worked on in 1992 someone dropped the wrench down the pipe at the manifold and it finally made it to the muffler. I had the Flowmasters put on in August this year and the wrench looked like it had been there a lot longer than a few months!!
Drifting
Joined: Aug 2006
Posts: 1,694
Likes: 0
From: Oregon
Originally Posted by Gary's 1977 Vette
I agree with the KID...<<If its too LOUD you're too OLD!!!>> I put 2 1/4 Flowmaster 40's on my '77 and they make my little Ol' Stock motor sound MEAN!! I had a raddle in one of them I just found out and took it back to be replaced under warrenty and guess what they found inside of it? NOT a Flowmaster probem but a S K 9/16 wrench!! All black and nasty and pitted........Now where did THAT come from??? Only thing I can figure is that someone put it up the tail pipe peice or when the motor was worked on in 1992 someone dropped the wrench down the pipe at the manifold and it finally made it to the muffler. I had the Flowmasters put on in August this year and the wrench looked like it had been there a lot longer than a few months!!
Most KIDS drive a Honda with a FART TUBE sticking out the back and their getto blaster 1,000,000 watt amp blasting out so everyone can enjoy the CRAP that the KIDS listen to and think it is actually MUSIC!