Flowmaster · New
Flowmaster 2.5 IN(O)/OUT(D) 10 Series CROSSFLOW 409 Muffler
MPN 8425810 · Store SKU flo8425810
Supplier stock checked 11/8/2026, 3:41:06 AM UTC. Adding a part does not reserve it.
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Product details
Flowmaster's latest version of its popular Super 10 Series muffler is now offered in a crossflow design. This 409S Stainless Steel muffler is designed to be mounted transversely and has a 2.50 inch inlet and dual 2.50 inch outlets. Like all Super 10 Series mufflers, this single chamber design delivers a powerful and aggressive tone inside and outside of the vehicle. This muffler is backed by Flowmaster's Lifetime Limited Warranty. Super 10 Series Stainless Steel - 2.50 Offset In / Dual Out Crossflow- Aggressive Sound Flowmaster Super 10 Series Chambered Muffler
Manufacturer fitment & guides
Check 8425810 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y