whats the quietest muffler

[mildthing]

Originally Posted by hessdawg

so this is what i was thinking
in 2.5 inch
or do you guys think i need 3 inch???

Mufflers permitting, dual 2.5" ( mandrel-bent, of course ) will support 520 HP with NO restriction. 3" is just loud, drawing cops.

[hessdawg]

Originally Posted by mildthing

Mufflers permitting, dual 2.5" ( mandrel-bent, of course ) will support 520 HP with NO restriction. 3" is just loud, drawing cops.

well im estimating my 455 to be in the 500-550hp range
so with the muffler aka(restriction) i should probably go with 3 inch

[Philip]

Originally Posted by Turbo70Camaro

winner winner chicken dinner

I am more of T bone steak kinda guy

[Kamikaze]

Originally Posted by Philip

I am more of T bone steak kinda guy

Hey! I was tbe first to say the Borla brand mufflers! I want Prime Rib dinner!

And for the record, there is a pair of pre-cats, a pair of mufflers and a pair of resonators under my wife's CTS-V Sportwagon.

[hessdawg]

i think turbo70 is giving out the dinners lol

[Philip]

My exhaust noise was fine until I installed a good sound system, now I want the exhaust quieter. May need to install some resonators in the tail pipes.

[mildthing]

Originally Posted by hessdawg

well im estimating my 455 to be in the 500-550hp range
so with the muffler aka(restriction) i should probably go with 3 inch

Why, you have Mondello or Edelbrock heads and a roller cam?

[hessdawg]

Originally Posted by mildthing

Why, you have Mondello or Edelbrock heads and a roller cam?

i would never buy mondello heads. I wish i had the money for edelbrocks right now i have extensively stock ported heads and intake
500-550hp is a really just wishful thinking

[hessdawg]

Originally Posted by Philip

My exhaust noise was fine until I installed a good sound system, now I want the exhaust quieter. May need to install some resonators in the tail pipes.

Exactly

[hessdawg]

Anybody else have suggestions other than what is pictured?

[Philip]

Back in the mid 70's I was cruising around in my 68 SS Chevelle with an L78 engine and caught up with a 69 Camaro at a traffic light. Up until that point nothing on the street had ever left me looking at tail lights fading away. The Camaro pulled into a gas station and I followed it in, we chatted a bit and ask what was under the hood and how he kept it so quiet. The engine was a 12:1 427 with aluminum heads, it was quiet because he had 4 mufflers, 2 on each side.

With today's technology there has to be a way to have a quiet exhaust system without sacrificing flow. It would be nice not only for enjoying music and conversation, but not attracting unwanted attention form law enforcement and neighbors.

[daniel76309]

Originally Posted by hessdawg

Anybody else have suggestions other than what is pictured?

I haven't done this yet, but intend to and I THINK it will work...

I have the long (20" case) Dynomax mufflers, which BTW I think are the same thing as the old Walker "hemi" super turbo's. For me, they are about right for normal driving, i.e. sounds good, but not obnoxious. However, there are times where I would like it to be quiet and cruise. I think if I install a single cut out just beyond the X-pipe, it will essentially convert the X pipe into a Y pipe and force all the exhaust through one muffler. For light throttle cruising that won't have any adverse effect and should be very quiet.

[muscl car]

Originally Posted by Philip

Back in the mid 70's I was cruising around in my 68 SS Chevelle with an L78 engine and caught up with a 69 Camaro at a traffic light. Up until that point nothing on the street had ever left me looking at tail lights fading away. The Camaro pulled into a gas station and I followed it in, we chatted a bit and ask what was under the hood and how he kept it so quiet. The engine was a 12:1 427 with aluminum heads, it was quiet because he had 4 mufflers, 2 on each side.

With today's technology there has to be a way to have a quiet exhaust system without sacrificing flow. It would be nice not only for enjoying music and conversation, but not attracting unwanted attention form law enforcement and neighbors.

remember the hemi mufflers ,they could flow some air back then and kept many of the 12.1/13.1 comp motors very quiet


remember seeing quite a few of those 4 muffler set ups during the late 70's and into the 80's . there was this wicked fast 59 vette with a mech injected 468BBC @ OCIR back in 1982 with (4) mufflers and it was running ;low/mid 10's thru the mufflers !!!, i was definately impressed

[5spd540]

I dont think I have ever seen a car with 4 mufflers

[sal70ss]

I'm sold on the pypes mufflers.Check out the sound clips on their website.The race pro muffler Is the quiets muffler they have,and sounds bada$$