Built for the 2006–2011 Civic 4-Door R18 Sedan
The FLES08139 cat-back exhaust gives the listed 2006–2011 Honda Civic sedan a complete rear exhaust-system configuration with a single rear exit and a 4-inch burnt tip. It is specifically configured for DX, LX, and EX 4-door sedan models with the 1.8L R18A1 or R18A4 engine—not as a universal muffler or a fit-all Civic exhaust.
Before ordering, match your vehicle’s year, body style, trim, and engine to the fitment table below. The verified configuration uses 2.36-inch OD main piping, a single muffler, and one resonator.
Specifications
| SKU | FLES08139 |
|---|---|
| Product Type | Cat-back exhaust system |
| System Configuration | Single rear-exit cat-back |
| Main Pipe Diameter | 2.36 in OD |
| Muffler / Resonator | Single muffler / 1 resonator |
| Material | 201 stainless steel |
| Surface / Tip Finish | Polished silver surface / burnt tip |
| Tip | 1 × 4 in diameter |
| Installation | Bolt-on; no cutting |
Key Features
- Single Rear-Exit Cat-Back: This is a complete cat-back configuration for the listed sedan application, giving buyers a defined rear exhaust-system layout rather than a universal muffler-only part.
- 2.36 in OD Main Piping: The verified outside-diameter specification helps buyers compare the system with their intended vehicle configuration and existing exhaust components.
- Single Muffler and One Resonator: The documented muffler and resonator layout clearly identifies the exhaust configuration being purchased.
- 201 Stainless Steel Construction: The system’s verified material and polished silver surface specify its construction and exterior finish.
- 4 in Burnt Tip: One 4-inch-diameter burnt-finish tip completes the single rear-exit appearance for the verified sedan fitment.
- Verified Hardware List: Gaskets, bolts, and nuts are listed for this SKU, helping buyers identify the documented installation hardware before ordering.
Cat-Back Design and Sound Character
FLES08139 is identified as a single rear-exit cat-back exhaust system for the listed Civic sedan application. Its verified configuration includes 2.36-inch OD main piping, one muffler, and one resonator; these details describe the system layout being purchased.
This listing does not provide current SKU-level sound testing. Exhaust sound can vary with the vehicle’s condition, existing exhaust configuration, and installation, so buyers should not use this page as a guarantee of a specific sound level or cabin experience.
N1 Burnt Tip Appearance and Muffler Layout
The verified configuration uses one single rear-exit muffler and one 4-inch-diameter burnt-finish tip. This layout gives the listed 4-door sedan a single-exit rear appearance; it is not a dual-tip or dual-exit configuration.
The product record identifies a polished silver surface and a burnt tip finish. Review the product photos and your vehicle’s current rear-bumper configuration before ordering.
Full Cat-Back System vs. Muffler-Only Replacement
| Option | What It Is | What to Confirm Before Buying |
|---|---|---|
| FLES08139 cat-back system | A verified single rear-exit cat-back configuration with main piping, one muffler, one resonator, and one 4 in burnt tip. | Match the listed 2006–2011 Civic 4-door R18 sedan fitment and confirm your vehicle’s existing exhaust configuration. |
| Muffler-only replacement | A separate muffler component rather than this SKU’s documented cat-back system configuration. | Confirm the part’s own vehicle application, dimensions, connection method, and included hardware with its product listing. |
What's Included
- Cat-back exhaust system components for SKU FLES08139
- Gaskets
- Bolts
- Nuts
Check Before Ordering
- Confirm that your vehicle is a 2006–2011 Honda Civic DX, LX, or EX 4-door sedan with the 1.8L R18A1 or R18A4 engine.
- Do not use this listing as fitment confirmation for Civic Si, coupe, hybrid, engine-swapped, or modified vehicles.
- Confirm the vehicle’s current exhaust configuration and all parts needed for your installation before beginning work.
Shipping & Returns
Free U.S. Shipping: Orders are typically processed within 1–2 business days and delivered within 7–9 business days. Additional charges may apply to remote areas.
30-Day Returns: Unopened and unused items in their original packaging may be returned within 30 days of receipt. Return shipping is covered for verified quality issues.
Worry-Free Delivery: Optional protection against eligible loss, theft, delay, or transit damage is available at checkout.
Fitment & Compatibility
- Fits factory-equipped vehicles with listed configurations.
- Please confirm vehicle specifications before ordering.
| YEAR | MAKE | MODEL | ENGINE | BODY |
|---|---|---|---|---|
| 2006-2011 | Honda | Civic DX | 1.8L L4 | Sedan — 4 Door |
| 2006-2011 | Honda | Civic EX | 1.8L L4 | Sedan — 4 Door |
| 2006-2011 | Honda | Civic LX | 1.8L L4 | Sedan — 4 Door |
2006–2011 Honda Civic 4-Door R18 Cat-Back Exhaust FAQs
Q1: What vehicles does SKU FLES08139 fit?
A1: FLES08139 fits 2006–2011 Honda Civic DX, LX, and EX 4-door sedan models with the 1.8L R18A1 or R18A4 engine. Confirm the year, trim, engine, and sedan body style before ordering.
Q2: Is this a cat-back exhaust or an axle-back?
A2: This SKU is a cat-back exhaust system. The listing identifies it as a single rear-exit cat-back configuration.
Q3: Will this fit a Civic Si, coupe, or hybrid?
A3: Those applications are not listed in this product’s verified fitment. Do not treat this listing as fitment confirmation for an Si, coupe, hybrid, engine-swapped, or modified vehicle.
Q4: What is the verified main pipe size?
A4: The verified main-pipe specification for FLES08139 is 2.36 inches OD. OD means outside diameter.
Q5: How many exhaust tips are included?
A5: This configuration has one rear-exit tip. The verified tip size is 4 inches in diameter with a burnt finish.
Q6: Does the system use a resonator?
A6: Yes. The verified FLES08139 configuration includes one resonator and one muffler.
Q7: What material is this Civic cat-back made from?
A7: The verified material is 201 stainless steel. The listed surface finish is polished silver, with a burnt-finish tip.
Q8: Is cutting required for installation?
A8: The external product record lists installation as bolt-on with no cutting. Confirm the condition and configuration of your individual vehicle before installation.
Q9: What hardware is listed for this SKU?
A9: The product record lists gaskets, bolts, and nuts. Review the package on arrival and confirm all installation requirements before work begins.
Q10: Does this kit include a header, downpipe, test pipe, or catalytic converter?
A10: No such components are listed as included with FLES08139. This product is identified as a cat-back exhaust system.