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Home / Exhaust / Muffler / Flowmaster 2.5 IN(O)/2.25 OUT(D) 40 Series DF Muffler
Flowmaster 2.5 IN(O)/2.25 OUT(D) 40 Series DF Muffler
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Flowmaster

Flowmaster 2.5 IN(O)/2.25 OUT(D) 40 Series DF Muffler

PART 9425432CATEGORY Muffler
$152.95
MSRP $172.95You save $20.00
$152.95
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 Delta Flow® - 2.50 Offset In / 2.25 Dual Out - Aggressive Sound

Flowmaster 40 Series Delta Flow Chambered Muffler

Features

Excellent Street/Strip and Off Road application

Durable fully welded 16 gauge aluminized steel

Race proven Delta Flow technology

No internal packing to blowout

Manufacturer notes

Universal Muffler - Some adaptation may be required.

Supplier category
Exhaust, Mufflers & Tips
Supplier subcategory
Muffler
UPC / barcode
700042015566
Units per product
1
Supplier Proposition 65 status
N
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 2.5 IN(O)/2.25 OUT(D) 40 Series DF Muffler

25 INO225 OUTD 40 SERIES DF

MUFF 2.5 IN(O)/2.25

About the manufacturer

This two chamber design incorporates Flowmaster's Delta Flow® technology. The Delta deflectors generate increased scavenging for better performance and reduced interior sound. Milder exterior tone and reduced interior resonance over standard 40 series. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.

Additional manufacturer information

MUFF 2.50IN

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