Cat-back exhaust system for 2006-2011 Honda Civic sedan 1.8L R18: resonated mid-pipe, rear muffler with 4-inch burnt tip, spring hangers, and clamps
Three sections of the Civic sedan cat-back: flanged front pipe, resonated connector tubing, and rear muffler ending in a burnt 4-inch tip
Burnt-blue 4-inch exhaust tip and flange bore of the Honda Civic cat-back, spanned by a tape measure at roughly 4 and 2.4 inches
Pipe wall, flange bore, and tip outlet of the Civic cat-back gauged at 2.40, 2.40, and 4.00 inches with a digital caliper
TIG-welded flange joint with hex bolt and a banded clamp collar on the stainless piping of a Honda Civic cat-back exhaust
Oval two-bolt flange inlet, D-shaped three-bolt flange inlet, and a smooth mandrel bend on the Civic sedan exhaust pipes
Welded spring hangers and stopper brackets on the polished body of the Honda Civic rear muffler
Five flat gaskets, a flanged connector, and eleven gold-tone bolts included with the Honda Civic cat-back hardware kit
Installed polished exhaust tip at the rear bumper of a silver Honda Civic, part of the cat-back system upgrade
Stainless cat-back mid-pipe and clamps fitted under the rear of a Honda Civic sedan, beside the fuel tank and rear suspension
Roll over image to zoom in Click on image to zoom
Cat-back exhaust system for 2006-2011 Honda Civic sedan 1.8L R18: resonated mid-pipe, rear muffler with 4-inch burnt tip, spring hangers, and clampsThree sections of the Civic sedan cat-back: flanged front pipe, resonated connector tubing, and rear muffler ending in a burnt 4-inch tipBurnt-blue 4-inch exhaust tip and flange bore of the Honda Civic cat-back, spanned by a tape measure at roughly 4 and 2.4 inchesPipe wall, flange bore, and tip outlet of the Civic cat-back gauged at 2.40, 2.40, and 4.00 inches with a digital caliperTIG-welded flange joint with hex bolt and a banded clamp collar on the stainless piping of a Honda Civic cat-back exhaustOval two-bolt flange inlet, D-shaped three-bolt flange inlet, and a smooth mandrel bend on the Civic sedan exhaust pipesWelded spring hangers and stopper brackets on the polished body of the Honda Civic rear mufflerFive flat gaskets, a flanged connector, and eleven gold-tone bolts included with the Honda Civic cat-back hardware kitInstalled polished exhaust tip at the rear bumper of a silver Honda Civic, part of the cat-back system upgradeStainless cat-back mid-pipe and clamps fitted under the rear of a Honda Civic sedan, beside the fuel tank and rear suspension

2006-2011 Honda Civic Catback Exhaust System丨4'' Burnt Muffler Tip丨Sedan 4 Door Only

SKU: FLES08139
🔥PRIME DAY SALE

🔥PRIME DAY SALE

$209.99Limited Time Deal $299.99 SAVE $90.00
Checking fitment...
SKU: FLES08139

⚠ Please verify full vehicle fitment before placing your order.

American Express Diners Club Discover Maestro Mastercard PayPal Visa
Free shipping, warranty, money-back guarantee and customer support

Product Specifications

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.

FLES08139 Civic cat-back exhaust measurement illustration showing inlet, outlet, and burnt tip

FLES08139 cat-back exhaust installed beneath a 2006–2011 Honda Civic 4-door sedan

FLES08139 single rear-exit exhaust with burnt-finish tip on a Honda Civic sedan

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.