Product Specifications
2001-2005 Lexus IS300 Headers for 3.0L 2JZ-GE
Build a stronger exhaust foundation for your naturally aspirated inline-six with a stainless-steel tubular setup designed to support smoother flow, a more purposeful exhaust note, and future exhaust-system upgrades. These Flashark headers use a 2 x 3-1 layout developed for 2001-2005 Lexus IS300 models equipped with the 3.0L 2JZ-GE DOHC engine.
-
Stainless-steel construction
Mirror-polished tubing with TIG-welded CNC-machined flanges -
2 x 3-1 design
Individual primary tubes merge through dual 3-into-1 collectors
Header Specifications
| Brand | FLASHARK |
|---|---|
| Model reference | EH28653 |
| Material | Stainless steel |
| Finish | Mirror polished |
| Tube layout | Dual 3-into-1 collectors (2 x 3-1) |
| Listed connection size | 2.25-inch inlet / 2.25-inch outlet; confirm measurement locations against your exhaust before installation |
| Flanges | CNC machined and TIG welded |
| Sensor provisions | Pre-welded O2 sensor bungs |
What Is Included
- One complete exhaust-header set
- Three gaskets
- Three nuts
- Components shown in the selected product-variant photos
Package contents differ between the Exhaust Header and Exhaust Header + Catback with Muffler Tip variants. Confirm the selected variant before checkout.
What Changes After Installation?
Exhaust flow and response
Individual stainless-steel primary tubes and 3-into-1 collectors are designed to support smoother exhaust flow. Actual horsepower and torque changes depend on the vehicle's condition, complete exhaust system, intake, ECU calibration, fuel and test method. No fixed power gain should be assumed without a configuration-matched dyno test.
Exhaust sound
A tubular header can change the 2JZ-GE exhaust note, especially under acceleration. Final volume and tone depend on the complete exhaust system, including the mid-pipe, resonator, catalytic converters and catback.
Header versus factory manifold
The original cast manifold prioritizes factory durability, noise control and production requirements. A tubular header uses separate primary tubes to manage exhaust flow before the collectors. The correct choice depends on the vehicle's configuration and intended use.
Installation Notes
The header is designed as a bolt-on component for a compatible, stock-configuration vehicle and includes O2 sensor bungs and gaskets. Custom welding is not normally expected, but seized fasteners, previous exhaust modifications, damaged studs, chassis differences or non-stock piping can change the work required.
- Professional installation is recommended.
- Inspect all flanges, gaskets, studs and O2 sensor wiring before assembly.
- Check steering, chassis and heat-sensitive component clearance before final tightening.
- Recheck fastener torque and inspect for exhaust leaks after the first heat cycles.
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.
