Sound Testing: Flowmaster's 8 Most Popular Mufflers

[GriffithMetal]

Originally Posted by Ron@Flowmaster

We do have a few: Our Super HP-2 and DBX Series mufflers both come in 304 stainless as does our Slim Line Sidepipe.

Thank you for the response. I was actually more interested in the delta flow line. Many of my customers who want a Flowmaster want the sound that is created with the delta flow. Many of the available options out there in a oval case in 304 stainless are perforated tubes through a metal or fiberglass wool. The sound is much different.

[Flowmaster Exhaust]

Originally Posted by GriffithMetal

Thank you for the response. I was actually more interested in the delta flow line. Many of my customers who want a Flowmaster want the sound that is created with the delta flow. Many of the available options out there in a oval case in 304 stainless are perforated tubes through a metal or fiberglass wool. The sound is much different.

We appreciate the feedback. This may be something that we will consider in the future. Thanks for your insight.

[transam]

Originally Posted by GriffithMetal

Thank you for the response. I was actually more interested in the delta flow line. Many of my customers who want a Flowmaster want the sound that is created with the delta flow. Many of the available options out there in a oval case in 304 stainless are perforated tubes through a metal or fiberglass wool. The sound is much different.

Agreed. I had to ditch my loud magnflows and wanted to go Flowmaster but the lack of 304 meant I had to go with stainless works mufflers instead.

[69hugger]

Can someone explain the difference between 304 & 409 stainless? Just for those of us who don't know....

THANKS!

[WSSix]

409 will corrode to an extent while 304 won't. A magnet will stick to 409 and not to 304 if you need help determining which stainless steel an exhaust is made of. Please understand this does not mean 409 is bad. It's still much better than aluminized steel. It's just that it is cheaper than 304 so the price should reflect that. My pypes system is 409.

[69hugger]

Thanks Trey.

[Ron@Flowmaster]

Originally Posted by 69hugger

Can someone explain the difference between 304 & 409 stainless? Just for those of us who don't know....

THANKS!

Originally Posted by WSSix

409 will corrode to an extent while 304 won't. A magnet will stick to 409 and not to 304 if you need help determining which stainless steel an exhaust is made of. Please understand this does not mean 409 is bad. It's still much better than aluminized steel. It's just that it is cheaper than 304 so the price should reflect that. My pypes system is 409.

Great description. 409 stainless steel has a slightly higher iron content than 304(shiny) stainless steel. This makes it easier to weld, more durable, stronger and longer lasting than a 304 stainless steel, but because of that, it will show light surface rust over time. This surface rust actually acts as a barrier to protect it from rusting completely through even under extreme conditions. Most major automakers recognize these benefits and currently use 409 stainless for their OEM factory exhaust systems. Because of its durability, we back our 409 stainless steel mufflers, systems, and kits with a Lifetime Limited Warranty, so you'll never have to buy another system again.