Softer pipes

[mark_n2]

Is anyone aware of aftermarket pipes that are quieter than the factory side pipes?

[RedBarchetta]

Mark, you'll probably snuff out that 427R if you go any quieter than an already quiet factory pipe. My $0.02. Try some 30db foam ear plugs, available in bulk at Home Depot. I never leave the garage without them. Then again, I'm running a custom 3" ID muffler and my car is certainly louder than most.

-Dean

[Got the Bug]

Mark,

You might want to check in with the folks at Olthoff to see what they would recommend.

http://www.olthoffracing.com/

I know that Stephen at Full Throttle has done a lot off different side pipe configurations for SPF cars (I believe he primarily works with Classic Chambered).

http://www.fullthrottlereno.com/

http://www.classicchambered.com/classic/purchase.html

Like Dean said, you'll trade some performance for quieter pipes, but you may enjoy your car more.

[RodKnock]

Hushpower was purchased by Flowmaster and is now a division of Flowmaster. They were recommended to me and I like them a lot. Allegedly, they're quieter and less restrictive. I have no proof.

http://www.hushpower.com/

[Bartruff1]

absolutely not..

[somedayaurora]

Check these out ; Buttrick uses them says they work , FFR application , sure it could be fabed up to work on a Super .
http://www.breezeautomotive.com/deta...=545&cat_id=26
SDR
________
MARIJUANA HEMP

[bobcowan]

There was a very long thread about this not very long ago. Had a lot of good data, and solid objective testing, along with some subjective opinions.

I recently removed my stock FFR pipes, and welded in some much longer classic chambered mufflers. I had one side old stock, and one new. I started it for a minute in the garage, and it certainly seemed to be quieter. But only only idled for about a minute in the garage, not a very good test. But I'll get the job done this week end (I hope) and then do some real testing.

[Snakebit]

If you want softer pipes, stop taking Viagra! When I am ready to leave a car show every one stands around to hear it start with the loud pipes. You are not one of those who have have a cup holder and a stereo in their Cobra are you????

[RedBarchetta]

I was waiting for this...

[mpanten]

My car has the auger type inserts, very tolerable at crusising speeds but still roar at wot, they actually increased the hp.

[Rare Iron]

I know that Stephen at Full Throttle has done a lot off different side pipe configurations for SPF cars (I believe he primarily works with Classic Chambered).

http://www.fullthrottlereno.com/

http://www.classicchambered.com/classic/purchase.html

Like Dean said, you'll trade some performance for quieter pipes, but you may enjoy your car more.

Well now, this just ain't true. Quieter & better flow IS possible. Stephen usually orders the 3" unpacked versions because his customers like them the best. BUT, 95% of the 'Packs I build are with packing (noise absorbing) & no complaints. 2.5" are good to upper 400 HP range & they are quieter than the 3" ones. 3" ones are full-boogie high HP class, & not too loud either.

-Eric

[Got the Bug]

Originally Posted by Rare Iron

Well now, this just ain't true. Quieter & better flow IS possible. Stephen usually orders the 3" unpacked versions because his customers like them the best. BUT, 95% of the 'Packs I build are with packing (noise absorbing) & no complaints. 2.5" are good to upper 400 HP range & they are quieter than the 3" ones. 3" ones are full-boogie high HP class, & not too loud either.

-Eric

Thanks for clarifying Eric! I'm planning on getting some new pipes built one these days. I'd like to go quieter...don't really car what others say and happy I won't be sacrificing performance.

[bobcowan]

I just finished installing a set of Eric's mufflers. I really like the results. Havn't been for a test drive yet - too cold. But in the driveway they sound great.

You can see more pictures here: http://s13.photobucket.com/albums/a2...red%20Exhaust/





I have sound bites from the stock FFR mufflers, but I don't know how to post them.

[Larry Spillman]

I agree that some pipes are too loud at 67 years old i have almost blown out my hearing.My Cobra is loud and fast as is but Cal Cops dont have a sense of humour and its only a matter of time that I will need to quiet my car down. too open pipes over scavange the motor and you end up running lean this is a good way to burn valves and piston tops. Good luck keep it upright. Larry Spillman

[NASTEEE]

I am curious as to what brand/size auger inserts you used and what set up (pipes)you put them in and what kind of power did you pick up. I have a Superformance with 427R that I put new stepped headers 1 3/4 to 1 7/8 and new Howe 3 1/2 ID race mufflers with their race merge collectors. I am putting down 468 rwhp with a junk carb. Next step is to get rid of the 870 Holley Avenger that my dyno guy can't get to run right (will get Pro Systems). I really like the performance and the deep sound of the pipes but they are just insanely too loud (my wife thought I would never say that). I do not want to go to the expense of complete new pipes (just spent a ton on this new set up) so I am looking for some way to quite these down a little. Any thoughts, pics, as to what you did on yours would be greatly appreciated.
Regards,
Jon

[WardL]

Vettes have a baffle that opens up at 3000 rpm. You can put the baffles on a switch and open for loud and close for softer. I haven't seen them on a Cobra.