rodney25

Does anyone know the best Maganaflow muffler for 1975 350 4 speed? Was thinking on Flowmaster but like the sound of Magnaflow.

ptroxx

http://www.youtube.com/watch?v=uRKVi9smL_I

6svette

I have magnaflows on my 82 and they sound great. Very nice tone and not too loud at all. If you want, I can post up pics of how they look, and a sound clip so you can hear what they sound like. They are worth the money, and in my opinion much nicer than the Flowmasters.

nate99

I just had a pair of magnaflows installed on my '81. I'm still working on the tuning, so I haven't worked them out thoroughly, but so far so good.

rodney25

6SVette: Yes Please! post or send pics and all the video/audio files you can. I see CorvetteCentral has a dual exaust Magnaflow kit, but don't know what it would sound like on a stock 1975 engine. The demo they have is from a 70 BB. Also if you can let me know what model# mufflers you have that would be great.

Thanks.

pakrat12

with 6svette. I installed Corvette Central true duals with magnaflows (323454) on my 82.

maxmachz

How well did that system fit? Do you need extra hangers, or is that kit a bolt up and go system?

Is there a bung in the left side for the O2 sensor? I'm almost ready for mine....I hate this crap under my car...and I want to fit some chrome or ss tips on the mufflers the stick straight out the back, not down; any thoughts?

pakrat12

[QUOTE=maxmachz;1579721440]How well did that system fit? Do you need extra hangers, or is that kit a bolt up and go system?

Is there a bung in the left side for the O2 sensor? I'm almost ready for mine....I hate this crap under my car...and I want to fit some chrome or ss tips on the mufflers the stick straight out the back, not down; any thoughts?

The Corvette Central system fit very well on my 82. It is pretty much bolt on and CC supplies all the clamps. I had to drill a couple of holes in my cross member for the new system hanger that replaced the cat hanger. I reused my original rear hangers. There is a bung for the O2 sensor (on the right side for 82). Here's a short video clip of mine. I need to either cut the threaded ends off the rear pipe to muffler clamps or remove them and have them welded.
http://www.youtube.com/watch?v=S2mhj...69AUAAAAAAAAAA

IDOXLR8

[QUOTE=pakrat12;1579722267]I saw you video, was the cat on the system?

jr73

Not a Vette but my Magnaflow duals on my 327 Camaro, 2 1/2" with X-pipe. Please excuse the first 18 seconds, I dont know what I did wrong there.

AdamMeh

magnaflows have a cackle during deceleration that sounds like a old glass pack muffler - not a good thing to me.

jr73

maybe with smaller dia. pipes they do but I never get that, also the X-pipe smooths out the exhaust note

AdamMeh

That could be true - have not compared the sound where I've kept track of pipe diameter. It also depends on many factors when listening on a computer. The recording device, angle of recording, distance, and the computer you're listening on etc.

The recording of our '77 sounds great on a PC with a good speaker/sub system (very close to what it sounds like in person). On a laptop or phone, it sounds like the mufflers are worn out and rattling.

0Magna_Flow

The muffler we use in our catback system for the 75s is 4"x9"x14" for reference, but you can use any of our universal mufflers with the right inlet/outlet diameter and we bet it'll come out sounding awesome!

pakrat12

[QUOTE=IDOXLR8;1591275493]No cat on the system.

Ken_4fun

Is that the largest (and most quiet at idle) Magna Flow muffler that will fit on C3 Corvette?

I called the Magna Flow number at the website, and while nice, the tech didnt or couldnt give me the exactly model of the largest that would fit.

Ken

mrvette

I lucked out and bought a pair of Maggies from a local fellow....around 40 bux, off his Mustang... fit my '72 like a glove, but the local exhaust master deserves the credit.....sounds MAGNIFICENT>>>>>>>>

0Magna_Flow

Unfortunately we do not keep that type of information on file, so its difficult to say. A 4x9x14 or 5x8x14 will fit without issue, but you may be able to squeeze a 5x8x18" in there. Before deciding on a unit, its good to take a quick peek under the car with a tape measure just to confirm the fitment.