HKS Catted Downpipe (Metal Catalyzer) - Honda Civic Type-R FL5 22+
HKS Catted Downpipe (Metal Catalyzer) - Honda Civic Type-R FL5 22+
Universal fit
No vehicle selection needed.
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Fitment not confirmed
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Vehicle fitment
This part is listed to fit the following vehicles.
In Melbourne? Fit it in our workshop.
We fit parts in-house at the RevZone workshop. Book a time and bring your car in.
Description
The HKS Metal Catalyzer replaces the restrictive factory ceramic catalyst on the FL5 Civic Type R with a low-density 150-cell metal sports cat, cutting exhaust resistance by approximately 51% compared to stock while keeping catalytic function. The outlet is formed by lost wax casting to a vehicle-specific design that smooths gas flow off the turbine for sharper response and a freer-revving top end.
Features
- Low-density 150-cell metal catalyst core (OEM is a 600 + 400 cell ceramic)
- SUS304 stainless steel construction, TIG welded and buffed to a mirror finish
- Lost wax cast outlet with vehicle-specific design for reduced exhaust resistance
- Purpose-designed heat shield included
- Reduces secondary exhaust pressure by up to 28% on its own, or around 40% when paired with the HKS LEGAMAX Sports muffler
Fitment
- Honda Civic Type R FL5 (6BA-FL5), K20C, 2022/09 onwards
Notes
- Minimum ground clearance after installation is approximately 125mm at the OEM front under panel.
- HKS exhaust gas certification applies to the Japanese market. Check your state regulations before road use in Australia.
Specifications
- Part Number
- 33005-AH006
- Brand
- HKS
- Pipe diameter
- 93mm inlet to 74.7mm outlet
- Material
- SUS304 stainless steel
- Catalyst
- 150-cell low-density metal core (OEM: 600 + 400 cell ceramic)
- Weight
- 6.4kg including heat shield (OEM: 5.8kg)
Shipping
Orders are processed within 1-2 business days (Monday to Friday), and orders placed before 12pm AEST are usually dispatched the same day. Once dispatched, standard shipping takes 3-7 business days and express 1-3, with tracking emailed as your order leaves.
If part of your order is out of stock, we'll contact you with the option to split the shipment or hold it until everything is ready. Read the full shipping policy.
Returns
You have 14 days from delivery to request a return on unused parts in their original packaging. Refunds incur a 15% restocking fee (20% for special orders), or choose store credit and the full purchase value is applied to your account.
Parts that have been test fitted, installed, or used can't be returned, and special-order or overseas-ordered items are assessed case by case. Faulty or incorrectly supplied items are always covered at no cost to you. Read the full returns policy.
