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
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 |
|---|---|---|---|---|
| 2001-2005 | Lexus | IS300 | 3.0L L6 | Sedan — 4 Door Wagon — 4 Door |
2001–2005 Lexus IS300 Catback Exhaust FAQs
Q1: Is this a catback exhaust or an axle-back exhaust?
A1: This listing identifies the Catback w/Muffler Tip selection as a catback exhaust system. It should not be treated as an axle-back-only listing; compare your current exhaust layout with the selected configuration before ordering.
Q2: What Lexus IS300 applications are listed on this page?
A2: The page lists 2001–2005 Lexus IS300 3.0L L6 four-door Sedan and Wagon applications. Confirm the year, body style, engine, and vehicle configuration before purchase.
Q3: Does the page list a 2001 Lexus IS300 application?
A3: Yes. The listed year range begins with 2001 for the Lexus IS300 3.0L L6 four-door applications shown above. Verify the vehicle's current exhaust configuration before ordering.
Q4: Does the listing include a 2002 Lexus IS300 application?
A4: Yes. 2002 falls within the page's listed 2001–2005 Lexus IS300 range. Use the fitment table as a starting point and verify the vehicle details before purchase.
Q5: What piping size is listed for this IS300 catback exhaust?
A5: The page lists a 2.5 in ID inlet and 2.5 in ID main piping. Compare those stated dimensions with the connection and routing on your vehicle before ordering.
Q6: What muffler tip is listed?
A6: The page lists a single 4 in OD N1-style muffler tip. This is a single-tip rear layout, not a dual-exit configuration.
Q7: Is the Catback w/Muffler Tip option the same as the header-and-catback option?
A7: No. The page presents Catback w/Muffler Tip and Exhaust Header + Catback w/Muffler Tip as separate selections. Confirm the included components for the exact option you choose before checkout.
Q8: Does the Catback w/Muffler Tip selection include exhaust headers?
A8: The listing separates the Catback w/Muffler Tip selection from the Exhaust Header + Catback w/Muffler Tip selection. Select the option that matches the components you intend to purchase and confirm its contents before ordering.
Q9: What material and finish are listed for this exhaust system?
A9: The page lists stainless steel construction with a mirror-polished surface. It does not state a material grade in the information used for this description.
Q10: What should I verify before installing an IS300 exhaust system?
A10: Verify the year, IS300 model, engine, body style, selected option, and current exhaust layout. If the vehicle has prior exhaust modifications or repairs, confirm component inclusion and installation requirements before beginning work.















