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Home / Exhaust / Muffler / Flowmaster 2.5IN(O)/OUT(O) 40 Series SS Muffler
Flowmaster 2.5IN(O)/OUT(O) 40 Series SS Muffler
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Flowmaster

Flowmaster 2.5IN(O)/OUT(O) 40 Series SS Muffler

PART 8042543CATEGORY Muffler
$135.95
MSRP $152.95You save $17.00
$135.95
1

Product information

Manufacturer information. Check the part number and installation requirements for your vehicle.

Supplier details checked 2026-09-23 · Test catalog

Some supplier details are unavailable for this product.

Product description

40 Series Stainless Steel - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound

Flowmaster 40 Series Chambered Muffler

Features

Excellent Street/Strip and Off Road application

Durable fully welded 409SS stainless steel

Aggressive Sound Exterior Exhaust Tone

Noticeable interior resonance

Manufacturer notes

Universal Muffler - Some adaptation may be required.

Supplier category
Exhaust, Mufflers & Tips
Supplier subcategory
Muffler
UPC / barcode
700042022564
Units per product
1
Supplier Proposition 65 status
Y
Supplier EPA status
N/A
Air freight prohibited
No
Not CARB approved
No
CARB acknowledgement required
No
Freight delivery required
No
Powersports product
No

Manuals and documents

More manufacturer information

Other product descriptions

Flowmaster 2.5IN(O)/OUT(O) 40 Series SS Muffler

25INOOUTO 40 SERIES 409S

MUFF 2.5IN(O)/OUT(O)

About the manufacturer

The Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability.

Additional manufacturer information

MUFF 2.50IN

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