Product Specifications
Catless Exhaust Downpipe Pair for 2000–2004 Porsche Boxster 986 2.7L and 3.2L
Built for the naturally aspirated 986 Boxster, this pair replaces the catalytic-converter pipe sections downstream of the headers. The catless layout offers a freer exhaust path for a 2000–2004 Boxster 2.7L or Boxster S 3.2L project intended for off-road or track use. Select the downpipes alone or the option that also includes exhaust headers, and check the connections on your car before ordering.
Specifications
| Specification | Details |
|---|---|
| Downpipe SKU | FLES08323 |
| Model | DP29783 |
| Product type | Catless exhaust downpipe pair |
| Quantity | Two pipes, left and right |
| Material | 16-gauge stainless steel, as listed for this product |
| Finish | Mirror polished |
| Header connection | Tri-bolt flange |
| Construction | CNC-machined flanges and TIG-welded joints |
| Catalytic converter | None in these downpipe sections |
Key Features
- Catless pipe sections: Replace the factory primary catalytic-converter sections for an off-road exhaust build.
- Left and right pipes: Supply both sides of the Boxster's exhaust layout.
- Tri-bolt header flanges: Provide the upstream connection described for the original or compatible aftermarket headers; compare your flange before purchase.
- CNC-machined flanges: Provide accurately formed mating faces at the connections.
- TIG-welded stainless construction: The listed welded joints and stainless material address heat and corrosion exposure.
- Mirror-polished finish and shaped routing: Follow the listed underbody layout while providing a polished appearance.
The existing product description estimates 8–12 HP with an ECU tune and describes stronger response through 4,000–6,500 RPM when paired with headers and a cat-back exhaust. These are conditional estimates, not guaranteed results; the outcome depends on vehicle condition and the rest of the exhaust system. The original page also describes a more noticeable exhaust sound after removing the primary catalysts.
What Is Included
- Two catless downpipe pipes
- Six flange bolts and six flange nuts
- Two gaskets
Check Before Ordering
- Confirm your Boxster's year, engine, trim and exhaust configuration. The existing fitment tab describes 2000–2004 Base 2.7L and S 3.2L broadly; the year and trim combinations above follow the SKU fitment table.
- Compare the tri-bolt header flange, downstream connection, sensor ports and clearance with the parts on your car. Aftermarket header connections can differ. For help with flange details, email service@flasharkracing.com.
- Choose the header option deliberately: the “Exhaust Header” selection is a separate bundle SKU, FLES08323-ES08218; “No Header” is the downpipe pair SKU, FLES08323. Confirm the selected option and its contents at checkout.
- This catless part removes a catalytic-converter section. It is offered for off-road and track use only; check the rules that apply to your vehicle and location before purchase or installation. A check-engine light associated with catalyst monitoring may occur.
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
Pro Tip: Verify your header flange type before ordering — early 2000-2002 Boxsters and 2003-2004 models use the same Tri-Bolt pattern, but aftermarket headers may vary. Contact service@flasharkracing.com with your header specs if unsure.
Years
Make
Model
Trim / Submodel
Engine
2000-2004
Porsche
Boxster 986
Base
2.7L M96 Flat-6
2000-2004
Porsche
Boxster 986
Boxster S
3.2L M96 Flat-6
Product FAQ
A1: It replaces the left and right factory catalytic-converter pipe sections downstream of the headers. A2: The downpipe SKU is listed for naturally aspirated 2.7L Boxster and 3.2L Boxster S configurations in the year and trim combinations shown above. A3: No. The “No Header” option is the downpipe pair. The separate “Exhaust Header” option adds headers; confirm that bundle's parts and compatibility before checkout. A4: No. These downpipe sections are catless and are described for off-road and track use only. A5: The product lists a tri-bolt header connection. Compare the flange pattern and the rest of the exhaust connections on your particular car, especially if it has aftermarket headers. A6: The listed downpipe package contains two pipes, six flange bolts, six flange nuts and two gaskets. A7: Yes. The original product information says the stock ECU may flag a catalyst-monitoring issue after the factory catalytic-converter sections are removed. A8: The original page estimates 8–12 HP with an ECU tune. That conditional estimate is not a guarantee for an individual car; no vehicle-specific test report is supplied here. A9: The existing product FAQ describes a deeper and more noticeable note, especially during acceleration. The actual result depends on the rest of the exhaust system. A10: The existing FAQ estimates 2–3 hours with a lift and longer with limited access. Mid-engine packaging can make access difficult; assess your car and equipment before work begins. A11: The existing FAQ says the downpipes do not change the engine's internal IMS bearing arrangement. Have any engine concern evaluated separately.2000–2004 Porsche Boxster 986 Catless Downpipe FAQs
Q1: What part of the exhaust does this pair replace?
Q2: Which Boxster engines are listed?
Q3: Does the standard option include headers?
Q4: Are catalytic converters installed in these pipes?
Q5: Will they connect to my existing headers?
Q6: What hardware comes with the downpipes?
Q7: Can a check-engine light appear?
Q8: How much power should I expect?
Q9: Will the exhaust sound change?
Q10: How long does installation take?
Q11: Does this part affect the IMS bearing?





















