Flowmaster · New
Flowmaster 2.5IN(O)/Dual OUT 80 Series SS Muffler
MPN 842583 · Store SKU flo842583
Supplier stock checked 11/8/2026, 2:58:27 AM UTC. Adding a part does not reserve it.
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Product details
The 80 series is a cross-flow design for applications where the muffler is mounted transversely behind the rear end. The inlet is located next to one of the outlets on the same side of the case. Delivering an aggressive muscle car sound both inside and outside the vehicle, this is an excellent replacement for Camaros and Firebirds with transverse mufflers. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability. 80 Series Crossflow Stainless Steel - 2.50 Offset In / 2.50 Dual Out - Aggressive Sound Flowmaster 80 Series Chambered Muffler
Manufacturer fitment & guides
Check 842583 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y