{"product_id":"shorty-exhaust-headers-for-lexus-is250-2006-2013-2-5l-rwd","title":"Shorty Exhaust Headers for Lexus IS250 (2006-2013) 2.5L RWD","description":"\u003ch2 style=\"font-size: clamp(18px, 3vw, 21px); margin-bottom: 15px; line-height: 1.3;\"\u003eDirect-Fit T304 Stainless Shorty Exhaust Headers for 2006-2013 Lexus IS (XE20)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Shorty Exhaust Headers replace cracked or restrictive factory exhaust manifolds on the 2006-2013 IS250 to eliminate exhaust leaks, restore scavenging efficiency, and prevent false lean fuel trim codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Lexus IS Exhaust Manifold Failure\u003c\/h3\u003e\n\u003cp\u003eFactory exhaust manifolds on the \u003cstrong\u003eXE20\u003c\/strong\u003e platform are notorious for stress fractures caused by severe thermal cycling and restricted packaging in the tight engine bay. As the factory catalytic converter and manifold assembly expands and contracts, hairline cracks develop along stress points and runner welds. This introduces ambient oxygen ahead of the upstream wideband sensors, skewing air-fuel readings and triggering P0171\/P0174 lean codes. The result is an audible cold-start tick, unburned fuel odor in the cabin, erratic idle, and sluggish mid-range acceleration due to corrupted ECU trim adaptations.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eEngineered as a direct bolt-on replacement for the 2.5L \u003cstrong\u003e4GR-FSE\u003c\/strong\u003e, these shorty tubular headers eliminate crack-prone factory failure points. Fabricated from heavy-gauge mandrel-bent T304 stainless steel, they provide superior thermal fatigue resistance and corrosion immunity under high exhaust gas temperatures. Precision-machined, thick cylinder head flanges resist warping to maintain a continuous seal against the cylinder head, while tuned runner lengths optimize cylinder scavenging and lower exhaust backpressure without requiring custom fabrication or catalytic relocation.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2x T304 Stainless Steel Shorty Exhaust Headers (Driver \u0026amp; Passenger Side)\u003c\/li\u003e\n  \u003cli\u003e2x Multi-Layer Cylinder Head Gaskets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n  \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;\"\u003e2006-2013 Lexus IS\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;\"\u003e\n\u003cstrong\u003e4GR-FSE\u003c\/strong\u003e \/ \u003cstrong\u003eXE20\u003c\/strong\u003e\n\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;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e204 hp \/ 185 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\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;\"\u003e\u003cstrong\u003eNPM97293\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2006-2013 Lexus IS250 2.5L V6 Rear-Wheel Drive (RWD) Only\u003c\/li\u003e\n  \u003cli\u003eDoes NOT fit All-Wheel Drive (AWD) models due to front differential and subframe clearance constraints.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions \u0026amp; Fitment Warnings\u003c\/h3\u003e\n\u003ch4\u003eDoes this fit the XE20 IS?\u003c\/h4\u003e\n\u003cp\u003eYes, this is a direct fit for the 2006-2013 Lexus IS equipped with the \u003cstrong\u003e4GR-FSE\u003c\/strong\u003e engine. \u003cstrong\u003eThis product only fits Rear-Wheel Drive (RWD) models; it will not clear front driveline components on AWD models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch4\u003eWhat is the recommended installation procedure to prevent future leaks?\u003c\/h4\u003e\n\u003cp\u003eThoroughly clean the cylinder head mating surface, torque all fasteners evenly from the center runners outward to factory specifications, and perform a re-torque after the first thermal heat cycle.\u003c\/p\u003e\n\n\u003ch3\u003eThe Lexus Performance Standard\u003c\/h3\u003e\n\u003cp\u003eDesigned to deliver genuine JDM V6 acoustics and crisp throttle response, this header assembly preserves OEM sensor layout and downpipe alignment while permanently curing factory manifold cracking issues.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":67896266948856,"sku":"DS-E2H0TELAE","price":337.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/shorty-exhaust-headers-for-lexus-is250-2006-2013-2-5l-rwd-1.jpg?v=1793296131","url":"https:\/\/performancechiptuning.com\/es\/products\/shorty-exhaust-headers-for-lexus-is250-2006-2013-2-5l-rwd","provider":"Performance Chip Tuning","version":"1.0","type":"link"}