Cat-back exhaust system for 2001-2005 Lexus IS300 3.0L L6: polished 4-inch N1-style tip, canister muffler, S-bent stainless tubing, and resonator pipe
Flanged resonator front pipe and muffler section with a large polished tip, the two main components of the Lexus IS300 cat-back exhaust
Flanged resonator pipe, bent connector tubing, and straight-through muffler with a polished outlet, the three sections of the Lexus IS300 cat-back
Flange bore and stainless tubing of the Lexus IS300 cat-back, gauged at 2.27 and 2.36 inches with a digital caliper
Polished 4-inch N1-style muffler tip of the Lexus IS300 exhaust, caliper jaws spanning its rolled outlet
Bolted flange joint with TIG weld seam, mesh gaskets with hex bolts, and a welded clamp collar on the IS300 cat-back piping
Stainless exhaust header and cat-back system kit for 2001-2005 Lexus IS300 3.0L, arranged with a silver IS300 sedan, header gaskets, and stud hardware
Long-tube exhaust header paired with the IS300 cat-back muffler and 4-inch tip assembly, plus mesh gaskets and mounting studs
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Cat-back exhaust system for 2001-2005 Lexus IS300 3.0L L6: polished 4-inch N1-style tip, canister muffler, S-bent stainless tubing, and resonator pipeFlanged resonator front pipe and muffler section with a large polished tip, the two main components of the Lexus IS300 cat-back exhaustFlanged resonator pipe, bent connector tubing, and straight-through muffler with a polished outlet, the three sections of the Lexus IS300 cat-backFlange bore and stainless tubing of the Lexus IS300 cat-back, gauged at 2.27 and 2.36 inches with a digital caliperPolished 4-inch N1-style muffler tip of the Lexus IS300 exhaust, caliper jaws spanning its rolled outletBolted flange joint with TIG weld seam, mesh gaskets with hex bolts, and a welded clamp collar on the IS300 cat-back pipingStainless exhaust header and cat-back system kit for 2001-2005 Lexus IS300 3.0L, arranged with a silver IS300 sedan, header gaskets, and stud hardwareLong-tube exhaust header paired with the IS300 cat-back muffler and 4-inch tip assembly, plus mesh gaskets and mounting studs

2001-2005 Lexus IS300 Catback Exhaust System丨4'' Polished Muffler Tip丨3.0L L6 Sedan/Wagon 4Door Only

SKU: FLES08181
$199.99 $259.99 SAVE $60.00
Style: Catback w/Muffler Tip
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SKU: FLES08181

⚠ Please verify full vehicle fitment before placing your order.

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Product Specifications

2001–2005 Lexus IS300 Catback Exhaust System

This Flashark catback exhaust system is listed for 2001–2005 Lexus IS300 3.0L L6 four-door applications. The Catback w/Muffler Tip selection uses 2.5 in ID inlet and main piping with a single 4 in OD N1-style muffler tip, giving shoppers a clearly defined rear-exhaust option for the listed vehicle range.

Choose the Catback w/Muffler Tip option when you need the catback configuration shown on this page. A separate Exhaust Header + Catback w/Muffler Tip selection is also offered; review the selected option and your existing exhaust layout before ordering.

Specifications

Brand Flashark
Product Type Catback exhaust system
Material Stainless steel
Surface Finish Mirror polish
Inlet / Main Piping 2.5 in ID / 2.5 in ID
Muffler / Tip Single N1-style muffler with one 4 in OD muffler tip
Available Selections Catback w/Muffler Tip; Exhaust Header + Catback w/Muffler Tip

Key Features

  • Catback Configuration: The Catback w/Muffler Tip selection is the rear-exhaust configuration presented on this product page, helping you distinguish it from the separate header-and-catback selection.
  • 2.5 in ID Piping: The listed inlet and main piping dimensions give buyers a specific connection and routing detail to compare against their current setup before purchase.
  • Single N1-Style Muffler: The product is listed with one N1-style muffler rather than a dual-exit configuration, clarifying the rear layout being selected.
  • 4 in OD Muffler Tip: The single 4 in OD tip is a stated exterior detail for shoppers comparing rear-tip size and appearance.
  • Stainless Steel Construction: The page identifies stainless steel construction with a mirror-polished surface, providing the stated material and finish information for this listing.
  • Separate Combination Option: Shoppers planning a broader exhaust purchase can select the separately listed Exhaust Header + Catback w/Muffler Tip option after confirming its included components and installation requirements.

Check Before Ordering

  • Confirm the year, Lexus IS300 model, 3.0L L6 engine, and four-door Sedan or Wagon body configuration shown above.
  • Compare your current exhaust layout with the selected option, particularly if the vehicle has prior exhaust modifications or repairs.
  • Select Catback w/Muffler Tip only when that is the configuration you intend to buy; the header-and-catback selection is a separate option.
  • Confirm component inclusion, required hardware, and installation requirements for the selected option before scheduling installation.
  • Review applicable local noise, emissions, and vehicle-modification requirements before purchase or installation.

Looking for other vehicle applications? Browse Lexus catback exhaust systems.

Shipping & Returns

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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.