What are you doing? Calling and asking how their mufflers sound? 50 SERIES! On a motor your size? That is absurd. Those are their most restrictive (all Flomasters are) muffler line. I have a set of 40 series on my truck and I also have a set of 3"30 series two chamber race muffs that were by all accounts LOUD. They were similar to um war! You are gonna have to hang out around your local car cruises to truly make a informed decision on what you may want.

This is the best I can describe my taste in exhaust tone. In my early 20's I had a Nova that when it did hit the street, it have the two chamber 30's. These were about enough to just say I had mufflers. The car had no interior so it was way loud. But I loved it.

In my late 20's I picked up my 86 short box. It has has mild to semi wild small blocks in it. There have been three exhausts on there in my time. First was on it when I got. 4' of 2 1/2" pipe with cherry bomb's. Not my thing. Then I had the 40's in 2 1/2 put on at a good shop that ran it out the in front of the rear tires. This was functional for years and multiple engines. It would drone at highway speed something terrible. It sounded like a power boat idling through the channel to Lake Michigan while cruising the neighborhood. Overall, I would still use this set up if my fuel cell wasnt so close to it. Next was the same exact mufflers on a Flowtech X pipe. No tail pipes! I had this in front of the stroker in my Camaro last summer. This sounded wicked on a free rev. Without an exhaust I had people two blocks away come over because they thought I had a Late Model (circle track car) revving. I planned adding tail pipes but it has kind of stalled for now.

Finally, While the truck was everyones ideal sounding high hp small block. I plan on long trips in the Camaro. Loud exhaust on the highway isnt an option and a civil converastion while cruising is very important. That led to searching out the Magnaflow exhaust I have on there. I havent heard it through the mufflers yet but from what I have come up with, there is no drone and they are less restrictive. Plus everyone has Flowmaster or knock off Flowmasters here, I like different. This exhaust also has an X pipe and that was the biggest change I say in the sound of the truck. I dont think I'll ever have another exhaust without one. I was that impressed.

Basically dont call McDonalds and ask if they have good burgers, they're gonna say yeah. Dont call them and ask if Burger King sucks either, again they'll say yeah.

 

Are you joking or what??? I am not calling everyone and ask them if they make good mufflers. Either ask them if they have provide better mufflers than company X, Y or Z. If I was a muffler designer, I would not even ask a single question, but build my own muffler.

I am asking the "experts" what would they recommend for my application. I see nothing wrong to ask that question.

Thanks for the information on the mufflers. Why are the X-pipe used and what is their purpose?

 

Because a O pipe wont

 

As I was reading, the x pipes will increase scavenging as well flow.

This is another muffler Flowmaster PRO SERIES MUFFLERS - Laminar Flow Technology from flowmaster laminar flow.

 

Those will never keep a BBC quiet, especially a really big BBC.

 

And apart from that, I think they will never fit underneath the floor. There will be not enough ground clearance. But this is what I only think. I need to physically check and measure.

 

The other muffler recommended by Dynomax is their Ultra Flo Welded Straight through design - Ultra Flo. Have less restrictions than the Flowmaster 50 series.....

Any opinion on this muffler?

 

Dynomax has a "hear it run" feature at their site. So you can choose the muffler you want to hear; look at the specs for flow ratings, then listen to it on a car. Only issue is the cars are usually brand new cars with stock engines, so no way to really know how they sound on a BBC. But at least you can see if it's too loud on a stock car.

 

Thank you. Yes, sure I will do that.

 

Pypes, Magnaflow, and Flowmaster (I think) all have similar areas on their sites. I wonder why they are trying to sell people on Laminar flow? Oh yeah! Their other muffler dont flow. At least those have a straight through shot.