Have Questions?
Professional-grade parts used trackside.
Expert help during business hours.
Encrypted checkout & trusted payments.
Orders ship quickly from regional warehouses.
The WALKER 21677 Quiet-Flow® SS Exhaust Muffler is a premium, direct-fit stainless-steel solution engineered specifically for the 2009–2015 Honda Pilot (Right Side). As part of Walker’s exclusive Quiet-Flow® SS lineup, this muffler is built with a 100% stainless-steel body, offering significantly longer life and superior corrosion resistance compared to standard aluminized mufflers.
Designed for OE-style fitment, the muffler features precise tube routing, OE-style hangers, and a refined internal chamber design that delivers smooth exhaust tone and optimal flow. Louvered tubes and domed heads ensure quiet, factory-correct sound, while mechanically joined tubes minimize distortion from heat cycles.
100% Stainless-Steel Construction for maximum corrosion resistance and longevity
OE-Style Acoustic Design for quiet, factory-level sound quality
Direct-Fit Installation with OE-style hangers and brackets—no welding required
Strong, Durable Construction using spun-locked heads and reinforced internal chambers
Internal Drainage System reduces moisture buildup and extends service life
Acoustically & Flow Validated to meet OE performance standards
Backed by Walker’s Limited Lifetime Warranty
| Specification | Detail |
|---|---|
| Shape | Oval |
| Finish | Aluminized |
| Body Material | Stainless Steel |
| Inlet Type | Pipe Connection |
| Outlet Type | Tip |
| Inlet Diameter | 1.750 in |
| Outlet Diameter | 2.250 in |
| Inlet Location | Offset |
| Outlet Location | Offset |
| Inlet Quantity | 1 |
| Outlet Quantity | 1 |
| Body Height | 5.500 in |
| Body Length | 14.000 in |
| Body Width | 11.000 in |
| Overall Length | 27.750 in |
| Inlet Offset | 3.750 in |
| Reversible | No |
| Tunable | No |
| Universal or Specific Fit | Specific |
| Grade Type | Premium |
2009–2015
Position: Right Muffler
Engine: 3.5L V6 (3471cc)
Drive Wheel: AWD / FWD (all applicable)
Quantity Required: 1
Direct-fit bolt-on installation with OE-style hangers
No cutting or welding required
Built with stainless steel for long-term durability
Covered by Walker’s Limited Lifetime Warranty and 90-Day Safe & Sound® Guarantee
Inspect downstream and upstream exhaust components before installation to ensure proper system fit
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
