Walker
Quiet-Flow SS

Walker 70015 Exhaust Muffler Assembly - Rear

Brand Walker 70015
Position Rear
Finish Natural
Body Diameter 11
Inlet Type 3 bolt welded flange
Outlet Type Dual tips
Body Height 5.5
Body Length 27
Muffler Material Stainless steel
Muffler Shape Oval
Overall Length 50.75
Body Material Stainless steel
Body Width 11
Grade Type Regular
Inlet 1 Type 3 bolt welded flange
Inlet Configuration Center
Inlet Quantity 1
Muffler Type Reflection
Outlet 1 Type Dual tips
Outlet Configuration Dual
Outlet Quantity 2
Shape Oval
Product line Quiet-Flow SS
Fits Acura · 6 vehicles

OE-style replacement. Direct-fit muffler assembly for straightforward installation.

Stainless steel construction. Helps resist corrosion for longer service life.

Reflection design. Engineered for smooth exhaust flow and a refined sound.

Cross-references 18307TX4A02 for the same application. See all 1.

$275.02Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $275.02
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker Quiet-Flow SS Muffler Assembly

Walker Quiet-Flow SS 70015 is a direct-fit exhaust muffler assembly built for rear installation on select Acura RDX applications. It combines stainless-steel construction with an OE-style replacement layout to support longer service life than typical aluminized mufflers.

For Acura RDX owners looking for a rear muffler replacement, this Walker Quiet-Flow SS assembly is shaped for factory-style fitment and finished in natural stainless steel. The oval body, center inlet, and dual-tip outlet configuration help match the original exhaust routing on the listed vehicles.

Key Features

  • Stainless-steel muffler and body construction
  • Direct-fit OE-style exhaust muffler assembly
  • Oval muffler shape with natural finish
  • Center inlet with 3-bolt welded flange
  • Dual outlet tips with dual outlet configuration
  • Rear position application for select Acura RDX models
  • Walker Quiet-Flow SS product line for stainless-steel exhaust replacement

Detailed Description

Walker 70015 is an exhaust muffler assembly engineered for rear replacement on 2013-2018 Acura RDX models. The stainless-steel body and muffler construction are intended to provide a durable OE-style solution for drivers replacing a worn, corroded, or noisy rear muffler. Its reflection-style muffler design, 27-inch body length, 11-inch body width, and 5.5-inch body height support a factory-like package for the listed fitment.

The Quiet-Flow SS line focuses on stainless-steel construction and direct-fit replacement geometry, making it a practical choice for Acura RDX exhaust service where maintaining original routing and outlet style matters. This part number, 70015, is also cross-referenced to 18307TX4A02 for the same application.

What This Part Helps Address

  • Rust or corrosion in the rear muffler assembly
  • Exhaust noise from a damaged or leaking muffler
  • Factory exhaust fitment issues after replacement
  • Worn outlet sections on rear exhaust systems
  • Need for an OE-style stainless-steel muffler replacement

Installation Notes and Tips

Fits 2018 Acura RDX, rear. Fits 2013-2017 Acura RDX, rear. Verify the 3-bolt welded flange inlet, center inlet configuration, and dual-tip outlet layout against the vehicle’s existing exhaust before installation. Confirm clearance around the oval body and overall length of 50.75 inches during removal and installation.

Quality Assurance

Walker Quiet-Flow SS muffler assemblies are built as stainless-steel, direct-fit OE-style replacements for domestic and foreign vehicles. The stainless construction is the key material advantage of this product line for long-term exhaust service.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2018AcuraRDX3.5LV6RearQuiet-Flow SS
2017AcuraRDX3.5LV6RearPremium; Limited Lifetime Warranty; Quiet-Flow SS
2016AcuraRDX3.5LV6RearPremium; Limited Lifetime Warranty; Quiet-Flow SS
2015AcuraRDX3.5LV6RearPremium; Limited Lifetime Warranty; Quiet-Flow SS
2014AcuraRDX3.5LV6RearPremium; Limited Lifetime Warranty; Quiet-Flow SS
2013AcuraRDX3.5LV6RearPremium; Limited Lifetime Warranty; Quiet-Flow SS
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
18307TX4A02