Magna Flow or Flowmaster
Pro
Joined: Jan 2003
Posts: 706
Likes: 47
From: Denver Colorado
I had the Flowmaster replacement muffs with a Walker Y pipe on my 1984. They were louder than stock but not obnoxious (auto and 3.07 gears) I did use exhaust pipe extensions to get the outlets about an inch behind the rear facia which also kept it cleaner. Its subjective but, for the money Flowmasters are a good deal. A nice rumble. If cost is no issue then CORSAs are real nice and all stainless steel too.
Burning Brakes
Joined: Nov 2014
Posts: 936
Likes: 51
From: Post Falls ID
I should speak up and say that I like my Magnaflows. I think they sound great and are not too loud at all. My system is from Corvette Central with no cats and they do mount where they hang down and are visible from the side of the car, but that is typical as far as I can tell for all mufflers for the C4.
Race Director
Joined: Dec 2002
Posts: 13,348
Likes: 233
From: SCMR Rat Pack'r Charter Member..Great Bend KS
Instructor
Joined: May 2014
Posts: 152
Likes: 1
From: Fayetteville NC
Keep in mind that those who typically complain about drone with Flowmasters didn't get the correct muffler. The internal design of them makes part selection very important unlike other mufflers. IT's a lot easier to buy the wrong one from a reseller/muffler shop who doesn't understand that (selling on price only) rather than getting the correct one for your application.
Also, a manual trans and a different rear end gear may make a difference as well.
Heel & Toe
Joined: Jan 2015
Posts: 19
Likes: 0
I just had Magna Flow cat back system installed # 15658 which fits 1986 to 1991 corvette C4s, Go to corvetteguys.com click on exhaust in left hand side then click on C4 symbol and see Magna flow exhaust for 1986 to 1991. Now scroll down to video of the stock verses Magna flow and then just grin. The sound is not as rough as Flow Master but it is better than stock and the 3.5: tips with give you that throaty growl.
Hope this helps.
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Heel & Toe
Joined: Jan 2015
Posts: 19
Likes: 0
www.corvetteguys.com
Hello,
I just went on and it is there at the cat back site it is a rede 1990 convertible with a white top.
Steps:
1 site is www.corvetteguys.com
2 Once site up click on exhaust of left hand side.
3 Once page is up on generations click on C4 and the second system at top of page click on it and your should see the system
4 Now scoll down to a small video which is blacked out with a red arrow click and see video of stock verses Magna flow # 15658.
I just went on and it is there at the cat back site it is a rede 1990 convertible with a white top.
Steps:
1 site is www.corvetteguys.com
2 Once site up click on exhaust of left hand side.
3 Once page is up on generations click on C4 and the second system at top of page click on it and your should see the system
4 Now scoll down to a small video which is blacked out with a red arrow click and see video of stock verses Magna flow # 15658.
Burning Brakes
Joined: Oct 2006
Posts: 800
Likes: 45
From: San Diego CA
The head engineer at Magnaflow is a good friend of mine. I've known him for over 10 years now. I don't know why anyone performance minded wouldn't buy Magnaflow. They are bar none one of the best flowing exhausts on the market. And they won't break the bank. Flowmaster is super restrictive.
You guys would be surprised what else Magnaflow makes, besides cat back exhausts. They also make high dollar headers and cats for a lot of different manufacturers. I won't mention what brands as I don't want anyone getting in trouble for leaked info. But they make very high quality stuff and are one of the main companies who research and design anything that has to do with exhaust systems.
I'm not trying to put a plug in to advertise Magnaflow. These are facts.
You guys would be surprised what else Magnaflow makes, besides cat back exhausts. They also make high dollar headers and cats for a lot of different manufacturers. I won't mention what brands as I don't want anyone getting in trouble for leaked info. But they make very high quality stuff and are one of the main companies who research and design anything that has to do with exhaust systems.
I'm not trying to put a plug in to advertise Magnaflow. These are facts.
Heel & Toe
Joined: Jan 2015
Posts: 19
Likes: 0
Magna Flow Cat back with Y pipe # 15658
The head engineer at Magnaflow is a good friend of mine. I've known him for over 10 years now. I don't know why anyone performance minded wouldn't buy Magnaflow. They are bar none one of the best flowing exhausts on the market. And they won't break the bank. Flowmaster is super restrictive.
You guys would be surprised what else Magnaflow makes, besides cat back exhausts. They also make high dollar headers and cats for a lot of different manufacturers. I won't mention what brands as I don't want anyone getting in trouble for leaked info. But they make very high quality stuff and are one of the main companies who research and design anything that has to do with exhaust systems.
I'm not trying to put a plug in to advertise Magnaflow. These are facts.
You guys would be surprised what else Magnaflow makes, besides cat back exhausts. They also make high dollar headers and cats for a lot of different manufacturers. I won't mention what brands as I don't want anyone getting in trouble for leaked info. But they make very high quality stuff and are one of the main companies who research and design anything that has to do with exhaust systems.
I'm not trying to put a plug in to advertise Magnaflow. These are facts.
Drifting
Joined: Sep 2014
Posts: 1,579
Likes: 59
From: Trieste Italy
And my choose will be for corsa, the better sound IMO, substantial deep and sharp
I have heard these from you tube video only, but can give an idea
Burning Brakes
Joined: Nov 2014
Posts: 936
Likes: 51
From: Post Falls ID
Hello,
I just went on and it is there at the cat back site it is a rede 1990 convertible with a white top.
Steps:
1 site is www.corvetteguys.com
2 Once site up click on exhaust of left hand side.
3 Once page is up on generations click on C4 and the second system at top of page click on it and your should see the system
4 Now scoll down to a small video which is blacked out with a red arrow click and see video of stock verses Magna flow # 15658.
I just went on and it is there at the cat back site it is a rede 1990 convertible with a white top.
Steps:
1 site is www.corvetteguys.com
2 Once site up click on exhaust of left hand side.
3 Once page is up on generations click on C4 and the second system at top of page click on it and your should see the system
4 Now scoll down to a small video which is blacked out with a red arrow click and see video of stock verses Magna flow # 15658.
