{"product_id":"spdz1-b58-toyota-supra-bmw-true-4-5-catless-downpipe","title":"SPDZ1 B58 Toyota Supra\/BMW True 4.5\" Catless Downpipe","description":"\u003ch2 data-end=\"230\" data-start=\"162\"\u003eSPDZ1 B58 True 4.5\" Catless Downpipe \u003c\/h2\u003e\n\u003chr data-end=\"292\" data-start=\"289\"\u003e\n\u003ch3 data-end=\"317\" data-start=\"294\"\u003e🔧 Product Overview\u003c\/h3\u003e\n\u003cp data-end=\"762\" data-start=\"319\"\u003eUnlock the full potential of your B58-powered Supra or BMW with the SPDZ1 True 4.5\" Catless Downpipe—now delivered with a premium exhaust gasket included. Unlike many “4.5” downpipes on the market that neck down immediately after the turbo, ours maintains the full 4.5\" internal diameter right to the transition point, eliminating restriction and allowing your turbo to breathe freely. \u003c\/p\u003e\n\u003cp data-end=\"920\" data-start=\"764\"\u003eThis is a high-performance, race-intended upgrade designed to drastically reduce backpressure, improve spool characteristics, and sharpen throttle response.\u003c\/p\u003e\n\u003chr data-end=\"925\" data-start=\"922\"\u003e\n\u003ch3 data-end=\"957\" data-start=\"927\"\u003e🌟 Key Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-end=\"1641\" data-start=\"959\"\u003e\n\u003cli data-end=\"1053\" data-start=\"959\"\u003e\n\u003cp data-end=\"1053\" data-start=\"961\"\u003e\u003cstrong data-end=\"991\" data-start=\"961\"\u003eTrue 4.5\" full-length flow\u003c\/strong\u003e — no early step-downs or chokes, for maximum gas throughput\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1163\" data-start=\"1054\"\u003e\n\u003cp data-end=\"1163\" data-start=\"1056\"\u003e\u003cstrong data-end=\"1075\" data-start=\"1056\"\u003eBolt-on fitment\u003c\/strong\u003e — mates directly to your OEM or aftermarket exhaust (no major modifications required)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1251\" data-start=\"1164\"\u003e\n\u003cp data-end=\"1251\" data-start=\"1166\"\u003e\u003cstrong data-end=\"1202\" data-start=\"1166\"\u003e304 stainless steel construction\u003c\/strong\u003e — corrosion-resistant and built for durability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1361\" data-start=\"1252\"\u003e\n\u003cp data-end=\"1361\" data-start=\"1254\"\u003e\u003cstrong data-end=\"1303\" data-start=\"1254\"\u003eTIG welded mandrel bends \u0026amp; smooth transitions\u003c\/strong\u003e — minimizing turbulence and preserving exhaust velocity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1561\" data-start=\"1478\"\u003e\n\u003cp data-end=\"1561\" data-start=\"1480\"\u003e\u003cstrong data-end=\"1508\" data-start=\"1480\"\u003eO2 sensor bungs retained\u003c\/strong\u003e — plug-and-play compatibility with factory sensors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1641\" data-start=\"1562\"\u003e\n\u003cp data-end=\"1641\" data-start=\"1564\"\u003e\u003cstrong data-end=\"1596\" data-start=\"1564\"\u003eAggressive, raw exhaust note\u003c\/strong\u003e — delivers the roar your B58 is capable of\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1646\" data-start=\"1643\"\u003e\n\u003ch3 data-end=\"1678\" data-start=\"1648\"\u003e🚗 Fitment \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp data-end=\"1803\" data-start=\"1680\"\u003eDesigned for \u003cstrong data-end=\"1716\" data-start=\"1693\"\u003eGen 1 and Gen 2 B58\u003c\/strong\u003e engines, this downpipe is compatible with a wide range of BMW and Toyota Supra models:\u003c\/p\u003e\n\u003cul data-end=\"2052\" data-start=\"1805\"\u003e\n\u003cli data-end=\"1849\" data-start=\"1805\"\u003e\n\u003cp data-end=\"1849\" data-start=\"1807\"\u003e\u003cstrong data-end=\"1817\" data-start=\"1807\"\u003eToyota\u003c\/strong\u003e: A90 \/ A91 Supra 3.0L (2020+)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1936\" data-start=\"1850\"\u003e\n\u003cp data-end=\"1936\" data-start=\"1852\"\u003e\u003cstrong data-end=\"1879\" data-start=\"1852\"\u003eBMW (Gen 1 \u0026amp; Gen 2 B58)\u003c\/strong\u003e: M240i, 340i, 440i, 540i, 740i, X3 M40i, X4 M40i, etc.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2001\" data-start=\"1937\"\u003e\n\u003cp data-end=\"2001\" data-start=\"1939\"\u003eWorks for both Left-Hand Drive and Right-Hand Drive variants\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2052\" data-start=\"2002\"\u003e\n\u003cp data-end=\"2052\" data-start=\"2004\"\u003eFits OEM and most aftermarket Cat-Back systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2219\" data-start=\"2054\"\u003e\u003cstrong data-end=\"2063\" data-start=\"2054\"\u003eNote:\u003c\/strong\u003e This is an off-road \/ track use component. Use may be restricted or illegal in some jurisdictions — always verify local emissions laws before installation.\u003c\/p\u003e\n\u003chr data-end=\"2224\" data-start=\"2221\"\u003e\n\u003ch3 data-end=\"2265\" data-start=\"2226\"\u003e💥 Performance Gains \u0026amp; Driving Feel\u003c\/h3\u003e\n\u003cp data-end=\"2378\" data-start=\"2267\"\u003eWhen paired with a proper tune, users typically see \u003cstrong data-end=\"2353\" data-start=\"2319\"\u003e30+ wheel horsepower increases\u003c\/strong\u003e on stock turbos. Expect:\u003c\/p\u003e\n\u003cul data-end=\"2533\" data-start=\"2380\"\u003e\n\u003cli data-end=\"2421\" data-start=\"2380\"\u003e\n\u003cp data-end=\"2421\" data-start=\"2382\"\u003e\u003cstrong data-end=\"2419\" data-start=\"2382\"\u003eSharper turbo spool \u0026amp; reduced lag\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2459\" data-start=\"2422\"\u003e\n\u003cp data-end=\"2459\" data-start=\"2424\"\u003e\u003cstrong data-end=\"2457\" data-start=\"2424\"\u003eLower backpressure under load\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2492\" data-start=\"2460\"\u003e\n\u003cp data-end=\"2492\" data-start=\"2462\"\u003e\u003cstrong data-end=\"2490\" data-start=\"2462\"\u003eStronger midrange torque\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2533\" data-start=\"2493\"\u003e\n\u003cp data-end=\"2533\" data-start=\"2495\"\u003e\u003cstrong data-end=\"2533\" data-start=\"2495\"\u003eMore aggressive, raw exhaust sound\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2924\" data-start=\"2535\"\u003eBecause your SPDZ1 retains full 4.5\" ID through its length (before transitioning to the stock or aftermarket midpipe), you avoid the common pitfall of early diameter reduction seen in many “4.5” downpipes. Many competitors taper down almost immediately after the turbo outlet—ours does not. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2015+ BMW M240i \u0026amp; Xdrive\u003c\/li\u003e\n\u003cli\u003e2016-2019 BMW 340i \u0026amp; Xdrive\u003c\/li\u003e\n\u003cli\u003e2020+ BMW M340i \u0026amp; Xdrive\u003c\/li\u003e\n\u003cli\u003e2016+ BMW 440i \u0026amp; Xdrive\u003c\/li\u003e\n\u003cli\u003e2016+ BMW 540i \u0026amp; Xdrive\u003c\/li\u003e\n\u003cli\u003e2016+ BMW 740i \u0026amp; Xdrive\u003c\/li\u003e\n\u003cli\u003e2017-2020 X3 M40\u003c\/li\u003e\n\u003cli\u003e2017-2020 X4 M40\u003c\/li\u003e\n\u003cli\u003e2019+ Toyota Supra 3.0L\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Speedzone Performance LLC","offers":[{"title":"Default Title","offer_id":51224597332263,"sku":"SPDZ1-B58-DP-4.5","price":299.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/primestore.us\/es\/products\/spdz1-b58-toyota-supra-bmw-true-4-5-catless-downpipe","provider":"PrimeStore Premium Marketplace ","version":"1.0","type":"link"}