SPDZ1 Primary Cat Delete Test Pipes | 2004-2008 Acura TL & TL Type-S | J32A3 J35A8 | Catless Downpipe Kit

SPDZ1 Primary Cat Delete Test Pipe Kit

Part Number: (SZY-052-CATLESS)

The factory primary catalytic converters on the 2004-2008 Acura TL are one of the largest restrictions in the exhaust system. The SPDZ1 Primary Cat Delete Kit replaces the restrictive OEM catalytic converters with smooth-flowing mandrel-bent stainless steel test pipes, improving exhaust flow, throttle response, and overall engine performance.

Manufactured from premium 304 stainless steel with precision-cast flanges and TIG-welded construction, these test pipes are engineered for excellent fitment and long-term durability. They are designed as a direct bolt-on replacement and include the installation hardware needed to complete the job. Similar products in this category feature 304 stainless steel, 2.25-inch piping, TIG welds, O₂ sensor bungs, and included adapters/hardware.

Features

✔ Premium 304 Stainless Steel Construction

✔ Precision Cast Stainless Flanges

✔ TIG Welded

✔ Mandrel Bent 2.25" Tubing

✔ Direct Bolt-On Installation

✔ Factory O₂ Sensor Locations

✔ Includes O₂ Sensor Adapters

✔ Improves Exhaust Flow

✔ Reduces Backpressure

✔ More Aggressive Exhaust Note

✔ Excellent Upgrade for Naturally Aspirated or Modified Engines

Why Choose SPDZ1?

The SPDZ1 Primary Cat Delete Kit is designed for enthusiasts looking to maximize the performance of Honda's legendary J-Series V6 without paying premium pricing.

Premium Performance Without the Premium Price

Benefits include:

• Increased horsepower potential
• Increased torque
• Faster engine response
• Improved throttle response
• Reduced exhaust restriction
• Deeper exhaust tone
• Direct OEM-style fitment

Whether your Acura TL is completely stock or paired with a performance J-Pipe and cat-back exhaust, the SPDZ1 kit allows your engine to breathe significantly better.

Vehicle Fitment

Acura TL

• 2004
• 2005
• 2006
• 2007
• 2008

Acura TL Type-S

• 2007
• 2008

Engine Compatibility

• J32A3
• J35A8

Specifications

• Material: T304 Stainless Steel
• Tubing Diameter: 2.25"
• Finish: Brushed Stainless Steel
• Construction: TIG Welded
• Flanges: Precision Cast Stainless Steel
• O₂ Sensor Bungs: Included

Package Includes

• Left Primary Test Pipe
• Right Primary Test Pipe
• Exhaust Gaskets
• Mounting Studs & Nuts
• O₂ Sensor Plugs
• 90° O₂ Sensor Adapters

Important Note

For Off-Road and Racing Use Only.

This product removes the factory primary catalytic converters and is not intended for use on pollution-controlled vehicles. Professional installation is recommended.

Warranty

Backed by the SPDZ1 Limited Lifetime Warranty against manufacturing defects.

PRODUCT WILL SHIP LATE JULY 2026