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-   -   What aftermarket exhaust (http://chevelleforum.net/showthread.php?t=1706)

grumpy 03-14-2011 08:39 AM

What aftermarket exhaust
 
Was thinking about swapping out the 2 1/2 flowmaster, American thunder system in the car now.

What do you guys think of the the Pypes 3" system. Thanks

Dave

Highway Star 03-14-2011 09:25 AM

3" is only necessary for BIG HP engines, making over 450 horses. You may lose a little low end grunt.

I'd say that your best bang for the buck exhaust change will be to swap the jokemasters for a set of through-style perforated core mufflers like pypes, magnaflow, dynomax, etc. make. That's all you need.

Ms Grumpy 03-14-2011 01:55 PM

I would actually like to tone down the "growl" of the car. I can't believe I said that. The one thing about my car has always been that it just sounded good. But, maybe it is time that I tone it down, and make it easier on the ears on those long rides. That rumble can be hard on the ears after a while.

Highway Star 03-14-2011 02:06 PM

Flowmasters are a nuisance on long trips. They drone by design. Drone is that sound they make when you're cruising at steady rpm, like driving down the highway.

The majority of through-style mufflers have a nice idle, and a loud sound at WOT, but do not drone down the road.

3" pipes will be louder, no matter which mufflers you choose.

If you decide to go with through style mufflers, make sure they're not packed with fiberglass or anything else that can deteriorate. The good ones are packed with ceramic plates or stainless steel

Bowtie-Bri 03-16-2011 11:44 PM

Hey Dave, I know exactly what Jake is talking about. I had the 40 series (2 chamber) flowmaster mufs on a 70 SS convertible. The tech on the phone told me I should go with the 70 series (3 chamber). The 40's had a irritating drone @ 35-40 mph. You couldn't hardly hear the radio playing. The following summer I went with the 70 series.
On my current Chevelle I'm running a pair of polished stainless Magnaflow. There pretty mild at idle, and have really nice sound when you get on the go pedal.
I like them alot. ;) Heres some sound clips from Magnaflows website:
http://www.magnaflow.com/04sound/04american.asp

grumpy 04-28-2011 05:22 PM

I used the 70 series on my jeep and like them very much. Nice little growl at idle and when on the throttle but no droning. Guess I did not think about them for the chevelle. Thanks for the idea.

68 nova 10.5 05-18-2011 12:56 AM

Quote:

Originally Posted by grumpy (Post 23564)
I used the 70 series on my jeep and like them very much. Nice little growl at idle and when on the throttle but no droning. Guess I did not think about them for the chevelle. Thanks for the idea.

I'm pretty sure thats whats on there now 70 series (3 chamber) I hear alot of good things about dynomax ultraflows im going to get some for my camaro I believe

erice924 10-24-2012 07:40 AM

What is the best aftermarket exhaust to buy for a sport type motorcycle?
im looking to buy an aftermarket exhaust for my yamaha r6s and im not sure which one to buy. Im just curious to which one is the best brand.

BillsCamino 10-24-2012 10:37 AM

:confused:

Ms Grumpy 10-24-2012 09:11 PM

Quote:

Originally Posted by BillsCamino (Post 39416)
:confused:

me too.....

DVSentinel 01-25-2013 08:45 AM

I have a Flowmaster 80 on my camaro, very happy with it. 3" pipe from cat back. Has a real nice mellow deep sound and not so loud I cannot hear the stereo, even with T-tops out.

It's single in dual out though. True dual, I don't know if they make that series single in, single out, would have to look it up.

Let us know how things work out. I was going to go 3" Dual with Glass Packs, legal where I live, but may be too loud.

72BLACKNWHITE 02-21-2013 08:05 AM

I have an older edelbrock system under my car,now the headers are starting to rust :( even though its garage kept the ceramic headers just arnt keeping up . i am trying to get a good sounding system and dont think flowmaster is the way to go . i trailer to all shows , so i am looking for a aggresive sounding system if anyone has any good ideas. o i left out that my engine comp. is 95% chrome so i want to stick with that look on the headers.

carpoor 02-21-2013 08:53 AM

Details on your engine? (Cubic inch, compression ratio, etc) Are tail pipes a must?

72BLACKNWHITE 02-21-2013 09:04 AM

350 motor , bore over 383 400 cam , yes duals out the back . 14 1/2 to one if i were to guess on the compresion

Ms Grumpy 02-21-2013 09:07 AM

Quote:

Originally Posted by 72BLACKNWHITE (Post 43176)
350 motor , bore over 383 400 cam , yes duals out the back . 14 1/2 to one if i were to guess on the compresion

Wow. So are you running racing fuel with that compression.

carpoor 02-21-2013 02:28 PM

Try a set of Dynomax race bullets, they flow great and sound mean.

ProStreet67 02-24-2013 11:00 AM

I think what some people dont realize or may forget, Flowmasters were originally designed for all out performance and a "race car" type sound on the street. To have this sound there are some drawbacks. The "droning" at certain RPMS's with the original performance and race series, this a by product of the series.

After complaints from people putting these on their "daily or occassional drivers" regarding the droning, they developed other lines that elimnate the droning while still providing performance and some sound.

If people dont want the droning, they need to look at Flowmasters other series of mufflers and not put mufflers that were intended for all out race or serious performance on their vehicles.

I have original Flowmaster 40 Series on the 67 Chevelle and on my SS Monte Carlo. Do they drone at certain RPM's- YES. I know that and expect it, so it doesnt bother me. Im going to put the new Flowmaster single chamber race series on the Chevelle, so Im sure it will be worse, but Im after performance and will deal with the by products.

As a comparision, I have the Flowmaster Super 44's with true full 3" exhaust with super flow cats and an "H" pipe on my 502 powered suburban. There is none of the aforementioned drone, and they sound is great. The truck is pretty much a daily driver, so I selected a muffler that fit what I wanted. It worked out well.

There are alot of manufacturers that have followed in Flowmasters steps.... I wonder why ? They have added to or made slight changes but the overall design remains the same, depending on the series of muffler.

As with most other things, you get what you pay for. You need to select a muffler that fits your driving patterns and intended uses. There are tons of choices. As another comparision. My brother in laws almost 900hp small block powered 66 SS Nova, he had the polished 3.5" magnaflow race mufflers, and went to the Flowmaster single chamber race mufflers....he didnt like the magna flows.

Again it all comes down to your uses and needs. Flowmaster makes a great product, as do alot of manufacturers. So choose wisely grasshopper...

Ms Grumpy 02-24-2013 05:51 PM

Quote:

Originally Posted by ProStreet67 (Post 43276)
I think what some people dont realize or may forget, Flowmasters were originally designed for all out performance and a "race car" type sound on the street. To have this sound there are some drawbacks. The "droning" at certain RPMS's with the original performance and race series, this a by product of the series.

........

Again it all comes down to your uses and needs. Flowmaster makes a great product, as do alot of manufacturers. So choose wisely grasshopper...

I totally agree with the droning. I will be changing my exhaust this year to something quieter. I have had my car for over 15 years and at first I wanted it to sound "mean". As I have gotten older I appreciate the "sleeper". Also when you start to make those 3+ hr trips the droning gets old quickly.

ProStreet67 02-24-2013 07:52 PM

Check out the Super 44's, I think you will like them. Theyre still decently loud, but with no droning.

I agree and I wouldnt like 3 hrs of droning either. I drive my rides 30 minutes at the most or they get trailered, so its not that bad, but many hours would get old real quick.

I did find though with the original series, either increase or decrease your speed/rpm and the droning goes away, but again traffic flow depsnds if you can keep that method up.

69chevelless 02-26-2013 09:20 PM

I love my flowmaster 40s and have even been thinking about finding something that's even louder. I never really experience droning since I'm always sifting anyways. Here's a vid http://www.youtube.com/watch?v=9qaOP...e_gdata_player

72BLACKNWHITE 02-28-2013 09:12 AM

Im not worried about droning as most of the time i idle and with the agressive cam i have in the car i want to be able to hear all of my engine . as far as perfomance goes i dont race it so could care less and trust me there is plenty of passing power . if not thats what n2o is for .o agere with flowmaster performance mufflers but is there one that is pretty also , under my car eveything is chrome. drive shaft suspension etc..


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