3" Megapower Straight Through 409 Stainless Steel Muffler Centre In / Out 14x9x4

A large, high flowing straight through megapower muffler! Building a custom exhaust for your big power or forced induction car? Then Tuff Car Parts have what you need!

Specifications:

• 3" straight through Megapower design muffler
• Single 3" inlet
• Single 3" outlet
• Centre inlet and outlet!
• 9" x 4" x 14" long oval body
• Straight - through design for smooth unrestricted flow
• Large diameter, perforated core eliminates flow restrictions of a louvered style core
• Reinforced inlet & outlet for a strong lasting design
• 409 Grade Stainless Steel body and piping
• Stainless steel packed for great performance and durability
• 24 month warranty

Why choose 409 grade Stainless Steel?
409 Stainless Steel is designed to stretch and flex from the normal tension loads generated by heat stress and engine vibration.
409 Stainless Steel is the best choice for your exhaust.  409 offers the best combination of long life, corrosion resistance and heat cycle endurance. This is proven by the fact that almost all vehicle manufacturers today specify 409 for their factory exhaust systems.

Aluminized Steel vs 409 Stainless Steel. Which is better?
Both aluminised steel and 409 stainless steel are excellent products for automotive exhaust applications. Both offer excellent heat resistance and both can be easily welded. 409 offers more corrosion resistance than aluminised. Aluminised steel is mild steel that has been coated with an aluminum coating. Because the corrosion resistance of aluminised steel is only a coating it can be damaged, but the corrosion resistant properties of 409 stainless are inherent throughout the metal.

304 Stainless Steel vs 409 Stainless Steel. Which is better?
409 is a titanium stabilized ferritic stainless steel which means that it is a steel alloy containing chromium. It contains less nickel and more carbon than 304 stainless steel. Ferritics are best suited for high temperature applications that require corrosion resistance and high strength. The principal use of 409 stainless steel is automotive exhaust systems and most catalytic converter shells are made of 409. More workable and stable than 304, 409 will accept bending and heat cycling better than 304. It resists both atmospheric and exhaust gas corrosion. It is magnetic due to its higher carbon content. Through chemical reaction, it oxidizes to a slight brownish hue which aids in corrosion resistance. While it does not polish well, it offers the advantages of higher strength and longer life due to its heat handling qualities. Be sure to ask for 409 Stainless for your exhaust system to get the best combination of both long life, corrosion resistance and heat resistance.

If this is stainless steel why is it magnetic?
It is commonly believed that stainless steel is not magnetic. This is true of grades of stainless that have a high content on chromium (such as 304 or 316 stainless steel) but 409 grade stainless steel is magnetic due to its higher carbon content.

I can see a tan or brown on the 409 stainless. Is that rust?
No. Through chemical reaction, 409 sometimes oxidizes to a slight brownish hue this actually aids in corrosion resistance. Under normal operating circumstances 409 will never rust out like mild steel.