{"product_id":"exhaust-system-with-catalytic-converter-for-toyota-tacoma-2001-2004-3-4l","title":"Exhaust System with Catalytic Converter for Toyota Tacoma (2001-2004) 3.4L","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit Stainless Exhaust System with Catalytic Converters for 2001-2004 Toyota Tacoma (VZN170\/VZN195)\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e This complete stainless steel exhaust system with dual catalytic converters replaces the entire corroded factory assembly from the front converter pipe to the tail pipe on 2001-2004 Toyota Tacoma \u003cstrong\u003eVZN170\/VZN195\u003c\/strong\u003e trucks equipped with the \u003cstrong\u003e5VZ-FE 3.4L V6\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eThe Stock Toyota Tacoma Exhaust Corrosion \u0026amp; Catalyst Failure\u003c\/h3\u003e\u003cp\u003eOn \u003cstrong\u003eVZN170\/VZN195\u003c\/strong\u003e trucks with the \u003cstrong\u003e5VZ-FE 3.4L V6\u003c\/strong\u003e, thermal cycling and road moisture corrode the front converter pipe, mid converter, muffler, and tail pipe simultaneously. Rust-weakened flanges develop pre-sensor exhaust leaks that skew air-fuel trim data. Simultaneously, heat soak and vibration fracture the factory ceramic substrate inside the converters. This drops oxygen storage efficiency below ECU thresholds, triggering \u003cstrong\u003eP0420\u003c\/strong\u003e catalyst codes and forcing costly piecemeal repairs.\u003c\/p\u003e\u003ch4\u003eCommon Symptoms of a Failing OEM Exhaust System\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck Engine Light \/ DTCs:\u003c\/strong\u003e Triggered \u003cstrong\u003eP0420\u003c\/strong\u003e catalyst efficiency code caused by degraded converter washcoat or pre-sensor exhaust leaks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMetallic Rattles \u0026amp; Leaks:\u003c\/strong\u003e Fractured ceramic substrate or rusted muffler baffles rattling under load, accompanied by audible ticking at the manifold flanges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackpressure \u0026amp; Compliance Failure:\u003c\/strong\u003e Restricted exhaust flow from collapsed substrate, excessive exhaust noise, and failed OBD-II emissions inspections.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Direct-Fit Stainless Exhaust System Solution\u003c\/h3\u003e\u003cp\u003eBuilt from corrosion-resistant stainless steel, this kit replaces OEM numbers \u003cstrong\u003e53432\u003c\/strong\u003e, \u003cstrong\u003e51-304\u003c\/strong\u003e, \u003cstrong\u003e53398\u003c\/strong\u003e, and \u003cstrong\u003e47742\u003c\/strong\u003e in a single bolt-on installation. Mandrel-bent tubing preserves factory exhaust flow geometry without restrictive crimps, while OE-style flanges and hanger rods align with stock mounting points. Both direct-fit converters feature high-flow ceramic honeycomb substrates and stock-position O2 sensor bungs. The system restores quiet, factory-like tone with zero cutting or welding required.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e1 Front Catalytic Converter Pipe\u003c\/li\u003e\n\u003cli\u003e1 Connecting Pipe\u003c\/li\u003e\n\u003cli\u003e1 Mid Catalytic Converter Pipe\u003c\/li\u003e\n\u003cli\u003e1 Long Intermediate Pipe\u003c\/li\u003e\n\u003cli\u003e1 Short Connector Pipe\u003c\/li\u003e\n\u003cli\u003e1 Muffler\u003c\/li\u003e\n\u003cli\u003e1 Tail Pipe\u003c\/li\u003e\n\u003cli\u003e5 U-Clamps\u003c\/li\u003e\n\u003cli\u003e3 Ring Gaskets\u003c\/li\u003e\n\u003cli\u003e2 Manifold Gaskets\u003c\/li\u003e\n\u003cli\u003eBolts, nuts, and washers as pictured\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; min-width: 300px;\"\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2001-2004 Toyota Tacoma\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e5VZ-FE 3.4L V6 \/ VZN170 \u0026amp; VZN195 (4WD)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEmissions \u0026amp; Substrate\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eEPA Federal (46-State Legal) \/ Ceramic Honeycomb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eInstallation Type\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eDirect Bolt-On OEM Replacement (No Cutting or Welding)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e53432, 51-304, 53398, 47742\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/div\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e2001-2004 Toyota Tacoma 3.4L V6 4WD Xtra Cab\u003c\/li\u003e\n\u003cli\u003e2001-2004 Toyota Tacoma 3.4L V6 4WD Double Cab\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\u003ch4\u003eDoes this fit the VZN170\/VZN195 Tacoma?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes.\u003c\/strong\u003e This is a direct fit for the 2001-2004 Toyota Tacoma equipped with the \u003cstrong\u003e5VZ-FE 3.4L V6\u003c\/strong\u003e engine in 4WD Xtra Cab and Double Cab models. \u003cstrong\u003eIt does not fit 2WD trucks, Regular Cab models, or 2.4L\/2.7L four-cylinder engines, and is not legal for sale or use in California, Colorado, New York, or Maine.\u003c\/strong\u003e\u003c\/p\u003e\u003ch4\u003eWill this clear P0420 codes, and do I reuse my O2 sensors?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eYes, provided your existing sensors are healthy.\u003c\/strong\u003e Replacing degraded converters and leaking pipes resolves \u003cstrong\u003eP0420\u003c\/strong\u003e efficiency codes on the \u003cstrong\u003e5VZ-FE\u003c\/strong\u003e, and factory O2 sensors transfer directly into the stock-position bungs.\u003c\/p\u003e\u003ch4\u003eIs welding required, and are gaskets and hardware included?\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eNo cutting or welding is needed.\u003c\/strong\u003e All manifold gaskets, ring gaskets, U-clamps, bolts, nuts, and washers are included for a complete bolt-on installation to factory hangers and flanges.\u003c\/p\u003e\u003ch3\u003eThe Toyota Heavy-Duty Standard\u003c\/h3\u003e\u003cp\u003eEngineered for trail durability and sustained towing loads, this stainless steel system resists extreme exhaust gas temperatures and harsh underbody corrosion. It restores leak-free scavenging, factory acoustic control, and reliable OBD-II readiness for your first-generation Tacoma.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":68094114627832,"sku":"DS-ETF8TAE8Y","price":584.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/exhaust-system-with-catalytic-converter-for-toyota-tacoma-2001-2004-3-4l-1.jpg?v=1794614246","url":"https:\/\/performancechiptuning.com\/fr\/products\/exhaust-system-with-catalytic-converter-for-toyota-tacoma-2001-2004-3-4l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}