Invidia N1 Cat-Back Exhaust System – 2002–2006 Acura RSX Type-S (DC5) | 60mm | 101mm Titanium Tip | K20A2 / K20Z1

Upgrade the exhaust note and flow of your 2002–2006 Acura RSX Type-S with the Invidia N1 cat-back exhaust — a 60mm stainless steel cat-back system with a 101mm titanium tip engineered specifically for the DC5 RSX Type-S and its K-series engine. The N1 enhances the K20’s naturally aspirated high-revving VTEC character — delivering a more aggressive, higher-revving exhaust note that builds through the RPM range and opens up through the VTEC crossover. A direct bolt-on replacement for the factory cat-back with no cutting, welding, or modifications required.

Key Features

• 60mm Stainless Steel Piping – Improved Flow for the K20: 60mm mandrel-bent stainless steel piping — larger than the factory system, reducing back pressure and improving exhaust flow across the K20’s high-revving RPM range. The K20A2 and K20Z1 are naturally aspirated engines that respond well to reduced exhaust restriction, particularly in the mid-to-upper RPM range where the VTEC cam profile is active. Mandrel bending maintains consistent internal diameter through each bend for unrestricted flow
• 101mm Titanium Tip – N1 Signature Finish: 101mm titanium exhaust tip — Invidia’s signature N1 finish. Titanium tip develops a natural heat-blued patina over time for a premium, race-inspired appearance. The 101mm diameter fills the DC5’s rear bumper cutout for a purposeful, finished look
• Aggressive K-Series VTEC Exhaust Note: The N1 enhances the K20’s naturally aspirated VTEC character — delivering a more aggressive, higher-revving exhaust note that builds through the RPM range and opens up through the VTEC crossover point. The K-series is known for its high-revving, free-breathing character and the N1 amplifies this with a more vocal, sporty tone at all RPM ranges
• Type-S Specific – DC5 RSX Type-S Only: Engineered for the RSX Type-S (DC5) with the K20A2 (2002–2004) or K20Z1 (2005–2006) engine. The RSX Type-S uses a different exhaust configuration than the base RSX (K20A3) — verify your trim level before ordering. This system is for the Type-S only
• Cat-Back – Emissions Friendly: Cat-back system replaces the exhaust from the catalytic converter rearward — factory catalytic converter is retained, making this system emissions-friendly in most jurisdictions. Verify local regulations before purchasing
• Direct Bolt-On – 2002–2006 Acura RSX Type-S DC5: Engineered as a direct-fit replacement for the factory cat-back. Uses factory mounting points and includes all necessary gaskets and hardware. No cutting, welding, or modifications required
• Invidia Quality: Manufactured by Invidia — a respected Japanese exhaust manufacturer known for high-quality stainless steel exhaust systems for JDM and performance applications worldwide

Specifications

• System Type: Cat-Back
• Pipe Diameter: 60mm
• Material: Stainless Steel, Mandrel-Bent
• Tip: 101mm Titanium (N1 Signature)
• Fitment: 2002–2006 Acura RSX Type-S DC5 (K20A2 / K20Z1)
• Part Number: HS01AR1GTP
  

Note: Type-S fitment only — not compatible with the base RSX (K20A3). Verify your trim level before ordering. Titanium tip will develop a heat-blued patina over time — this is a natural characteristic of titanium, not a defect. Professional installation recommended. Apply anti-seize to all fasteners during installation. Check for exhaust leaks after the first heat cycle. Check local noise and emissions regulations before purchasing.