Flowmaster · New

Flowmaster 2.50 IN(D)/2.50 OUT(D) 50 Heavy Duty SS Muffler

Name: Flowmaster 2.50 IN(D)/2.50 OUT(D) 50 Heavy Duty SS Muffler
Brand: Flowmaster
SKU: flo8525554
Price: 368.95 USD

MPN 8525554 · Store SKU flo8525554

$368.95

CHECK AVAILABILITY0 in supplier warehouses. Ask JuiceBuilt about availability.

Supplier stock checked 11/8/2026, 6:30:12 AM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

50 series HD, three chamber mufflers. Designed primarily for today's heavy duty gas and diesel trucks, this muffler will deliver improved performance, throttle response and mileage. Featuring a deeper, moderate tone with minimal resonance, it is ideal for trucks with modified engines. Constructed of 16 gauge 409S stainless steel material and fully MIG welded for maximum durability. 50 H.D. Stainless Steel - 2.50 Dual In / 2.50 Dual Out - Moderate Sound Flowmaster 50 Series HD Chambered Muffler

Manufacturer fitment & guides

Check 8525554 against the manufacturer’s application information below.

Part-specific notes

California Proposition 65: Y

Manufacturer documents

Two green Ford Mustangs with their hoods open in a track paddock

JUICEBUILT PERFORMANCE PARTS

THE NEXT PART
OF YOUR BUILD.

From the fuel system to the finish line. Find the hardware for your next move, with a real performance shop behind it.

Find your next part ↗Talk about your build ↗

BUILT IN THE SHOP.PROVEN AT THE TRACK.

01 / PERFORMANCE

MORE PARTS. LESS SHIPPING.

Free shipping on $100+ orders.

On eligible parts orders. Oversized and freight items excluded.

See shipping details ↗

See availability before you buildClear supplier stock and dealer-order labels.

A real shop behind your partsGet help with the right combination for your car.

THE PARTS BEHIND THE POWER

Build with the right brands.

Explore featured brands. Swipe or use the arrows.

YOUR CAR. YOUR NEXT MOVE.

Shop your platform.

Find parts for your chassis, then check the listed year, engine and trim.

Choose your platform

Shop by parts section.

Find the hardware for the next part of your build.

YOUR BUILD STARTS HERE

Find your next upgrade.

JuiceBuilt kits & merchandise ↗

BEFORE YOU ORDER

A few things to know.

How do I order these parts?

Add your exact parts and delivery details, then continue to payment. Eligible orders show the final parts, shipping and tax total and a PayPal button here after automatic checks. Freight, oversized, custom and uncertain items go to JuiceBuilt for a quote. You are charged only after approving PayPal; supplier orders are submitted separately after verified payment.

Does a part number guarantee vehicle fitment?

No. Product descriptions are supplied by the manufacturer. Check the manufacturer application information for your exact vehicle, engine and supporting modifications. Online checkout requires your exact-part fitment acknowledgment. Contact JuiceBuilt before ordering if you need fitment help.

Is the stock shown reserved for me?

No. Availability is a dated supplier snapshot. Inventory can change, and adding a part to your build does not reserve it. Availability and delivery are checked again before payment. A supplier order is confirmed separately after payment.

What about shipping?

Eligible standard-size parts orders with a parts subtotal of $100 or more receive free standard shipping. The minimum applies after coupons and other discounts.

The same $100 minimum applies to all brands, including Aerospace Components.

Oversized and freight items are excluded from free shipping at every subtotal, including carbon doors, hoods, trunks and similar large panels. Their shipping charge is quoted separately before payment.

Shipping for orders below $100 is calculated before payment.

Online checkout is initially available for US delivery addresses. For other countries, contact JuiceBuilt for a manual quote before payment.

Read shipping & returns ↗

What is the return policy?

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

The customer pays return shipping for a change-of-mind return.

Any actual supplier restocking charge is disclosed before purchase.

Clearance and scratch-and-dent parts are final sale. No returns or refunds.

Read the full shipping & returns policy ↗

This policy does not limit rights required by law.