{"id":54833,"date":"2025-11-17T15:23:10","date_gmt":"2025-11-17T14:23:10","guid":{"rendered":"https:\/\/race4driftparts.com\/?post_type=product&#038;p=54833"},"modified":"2026-06-11T16:51:09","modified_gmt":"2026-06-11T14:51:09","slug":"bmw-e46-m52-m54","status":"publish","type":"product","link":"https:\/\/race4driftparts.com\/en\/shop\/uitlaat\/middendempers\/bmw-e46-m52-m54\/","title":{"rendered":"BMW E46 M52\/M54  Sport Spruitstuk met 300 Cells Sportkatalysatoren &#038; Middenpijp Schmiedmann"},"content":{"rendered":"<h2>BMW E46 M52\/M54 Sport Spruitstuk met 300 Cells Sportkatalysatoren &amp; Middenpijp Schmiedmann<\/h2>\n<ul data-start=\"1730\" data-end=\"2001\">\n<li data-start=\"1935\" data-end=\"2001\">\n<p data-start=\"823\" data-end=\"1148\">Breng je BMW E46 met M52\/M54 naar een hoger prestatieniveau met dit hoogwaardige sportspaghetti spruitstuk + sport middenpijp systeem, voorzien van 300 cells Euro3\/4 metalen sportkatalysatoren. Dit complete performancepakket zorgt voor optimale uitlaatflow, meer vermogen, sneller oppakken en een sportiever geluid.<\/p>\n<p data-start=\"1150\" data-end=\"1316\">The system fits all BMW E46 M52\/M54 6-cylinder models (excluding XI) and comes as a complete kit, but requires some modifications for correct fitting.<\/p>\n<hr data-start=\"1318\" data-end=\"1321\" \/>\n<h2 data-start=\"1323\" data-end=\"1350\"><strong data-start=\"1326\" data-end=\"1350\">Technical features<\/strong><\/h2>\n<ul data-start=\"1351\" data-end=\"1531\">\n<li data-start=\"1351\" data-end=\"1400\">\n<p data-start=\"1353\" data-end=\"1400\">Material manifolds and pipes: STAINLESS STEEL 304<\/p>\n<\/li>\n<li data-start=\"1401\" data-end=\"1432\">\n<p data-start=\"1403\" data-end=\"1432\">Flange material: mild steel<\/p>\n<\/li>\n<li data-start=\"1433\" data-end=\"1457\">\n<p data-start=\"1435\" data-end=\"1457\">Total weight: 27 kg<\/p>\n<\/li>\n<li data-start=\"1458\" data-end=\"1501\">\n<p data-start=\"1460\" data-end=\"1501\">Packaging dimensions: 148 \u00d7 48 \u00d7 23 cm<\/p>\n<\/li>\n<li data-start=\"1502\" data-end=\"1531\">\n<p data-start=\"1504\" data-end=\"1531\">Quantity per car: 1 set<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1533\" data-end=\"1550\">Pipe diameters<\/h3>\n<ul data-start=\"1551\" data-end=\"1714\">\n<li data-start=\"1551\" data-end=\"1584\">\n<p data-start=\"1553\" data-end=\"1584\">Intake manifold: 43 \u00d7 30 mm<\/p>\n<\/li>\n<li data-start=\"1585\" data-end=\"1620\">\n<p data-start=\"1587\" data-end=\"1620\">Exhaust after catalysts: 50 mm<\/p>\n<\/li>\n<li data-start=\"1621\" data-end=\"1680\">\n<p data-start=\"1623\" data-end=\"1680\">Adapter kit included for models with one exhaust pipe<\/p>\n<\/li>\n<li data-start=\"1681\" data-end=\"1714\">\n<p data-start=\"1683\" data-end=\"1714\">Not necessary for 2-pipe systems<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"1716\" data-end=\"1733\">Catalysts<\/h3>\n<ul data-start=\"1734\" data-end=\"1865\">\n<li data-start=\"1734\" data-end=\"1788\">\n<p data-start=\"1736\" data-end=\"1788\">300 cells Euro 3\/Euro 4 metal sport catalysts<\/p>\n<\/li>\n<li data-start=\"1789\" data-end=\"1865\">\n<p data-start=\"1791\" data-end=\"1865\">Moved to middle pipe for better flow and lower engine temperatures<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"1867\" data-end=\"1870\" \/>\n<h2 data-start=\"1872\" data-end=\"1929\"><strong data-start=\"1875\" data-end=\"1929\">Important points of attention and assembly instructions<\/strong><\/h2>\n<h3 data-start=\"1931\" data-end=\"1952\">Not street legal<\/h3>\n<ul data-start=\"1953\" data-end=\"2036\">\n<li data-start=\"1953\" data-end=\"2036\">\n<p data-start=\"1955\" data-end=\"2036\">No E mark and no T\u00dcV approval.<br data-start=\"1995\" data-end=\"1998\" \/>Suitable for track use only.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2038\" data-end=\"2061\">Mounting adjustments<\/h3>\n<ul data-start=\"2062\" data-end=\"2510\">\n<li data-start=\"2062\" data-end=\"2206\">\n<p data-start=\"2064\" data-end=\"2206\">Pipes from the catalytic converter to the rear silencer are not included.<br data-start=\"2135\" data-end=\"2138\" \/>Eisenmann Soundrohr is recommended and available from us.<\/p>\n<\/li>\n<li data-start=\"2207\" data-end=\"2387\">\n<p data-start=\"2209\" data-end=\"2387\">For E46 models with 6-speed or automatic transmission, the catalytic converters must be placed further back due to the longer transmission.<br data-start=\"2342\" data-end=\"2345\" \/>Extension pipes are not included.<\/p>\n<\/li>\n<li data-start=\"2388\" data-end=\"2510\">\n<p data-start=\"2390\" data-end=\"2510\">This configuration requires new lambda sensors behind the catalysts as the original wiring is too short.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2512\" data-end=\"2530\">Lambda sensors<\/h3>\n<ul data-start=\"2531\" data-end=\"2742\">\n<li data-start=\"2531\" data-end=\"2570\">\n<p data-start=\"2533\" data-end=\"2570\">Never cut or extend wiring.<\/p>\n<\/li>\n<li data-start=\"2571\" data-end=\"2653\">\n<p data-start=\"2573\" data-end=\"2653\">Remove the cables from their holders and route them behind the engine above the transmission.<\/p>\n<\/li>\n<li data-start=\"2654\" data-end=\"2742\">\n<p data-start=\"2656\" data-end=\"2742\">Mark the sensors so that they are replaced in the correct position (front\/rear).<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"2744\" data-end=\"2777\">Additional installation instructions<\/h3>\n<ul data-start=\"2778\" data-end=\"3143\">\n<li data-start=\"2778\" data-end=\"2845\">\n<p data-start=\"2780\" data-end=\"2845\">The flange is deliberately not made of stainless steel for better sealing.<\/p>\n<\/li>\n<li data-start=\"2846\" data-end=\"2959\">\n<p data-start=\"2848\" data-end=\"2959\">The suspension bracket of the original centre section has to be cut off and welded onto this high-flow system.<\/p>\n<\/li>\n<li data-start=\"2960\" data-end=\"3064\">\n<p data-start=\"2962\" data-end=\"3064\">Place four nuts as spacers between bottom plate and underside of car for extra space.<\/p>\n<\/li>\n<li data-start=\"3065\" data-end=\"3143\">\n<p data-start=\"3067\" data-end=\"3143\">After installation, one protective plate remains under the car instead of two.<\/p>\n<\/li>\n<\/ul>\n<h3 data-start=\"3145\" data-end=\"3169\">Including adapter set<\/h3>\n<ul data-start=\"3170\" data-end=\"3314\">\n<li data-start=\"3170\" data-end=\"3266\">\n<p data-start=\"3172\" data-end=\"3266\">The system includes an adapter set with Y-piece for models with one pipe to the rear silencer.<\/p>\n<\/li>\n<li data-start=\"3267\" data-end=\"3314\">\n<p data-start=\"3269\" data-end=\"3314\">For 2-pipe systems, the adapter is not needed.<\/p>\n<\/li>\n<\/ul>\n<hr data-start=\"3316\" data-end=\"3319\" \/>\n<h2 data-start=\"3321\" data-end=\"3342\"><strong data-start=\"3324\" data-end=\"3342\">Performance gain<\/strong><\/h2>\n<p data-start=\"3343\" data-end=\"3512\">This is one of the most effective ways to get more power from a BMW E46 6-cylinder.<br data-start=\"3440\" data-end=\"3443\" \/>Combined with a sport rear silencer obtained our tested E46 330i:<\/p>\n<ul data-start=\"3514\" data-end=\"3582\">\n<li data-start=\"3514\" data-end=\"3548\">\n<p data-start=\"3516\" data-end=\"3548\">Power gain of around 20 hp<\/p>\n<\/li>\n<li data-start=\"3549\" data-end=\"3582\">\n<p data-start=\"3551\" data-end=\"3582\">Torque increase of around 37 Nm<\/p>\n<\/li>\n<\/ul>\n<p data-start=\"3584\" data-end=\"3710\">The system provides a deeper, sportier sound. A not-too-loud sport muffler is recommended for the best balance.<\/p>\n<hr data-start=\"3712\" data-end=\"3715\" \/>\n<h2 data-start=\"3717\" data-end=\"3762\"><strong data-start=\"3720\" data-end=\"3762\">Why choose this exhaust system?<\/strong><\/h2>\n<ul data-start=\"3763\" data-end=\"4096\">\n<li data-start=\"3763\" data-end=\"3798\">\n<p data-start=\"3765\" data-end=\"3798\">Maximum exhaust gas flow<\/p>\n<\/li>\n<li data-start=\"3799\" data-end=\"3854\">\n<p data-start=\"3801\" data-end=\"3854\">Higher power gain and faster throttle response<\/p>\n<\/li>\n<li data-start=\"3855\" data-end=\"3902\">\n<p data-start=\"3857\" data-end=\"3902\">Stainless steel 304 construction with durable materials<\/p>\n<\/li>\n<li data-start=\"3903\" data-end=\"3962\">\n<p data-start=\"3905\" data-end=\"3962\">Displaced catalysts for lower heat generation<\/p>\n<\/li>\n<li data-start=\"3963\" data-end=\"3996\">\n<p data-start=\"3965\" data-end=\"3996\">Complete system with adapters<\/p>\n<\/li>\n<li data-start=\"3997\" data-end=\"4051\">\n<p data-start=\"3999\" data-end=\"4051\">Great for trackdays and performance builds<\/p>\n<\/li>\n<li data-start=\"4052\" data-end=\"4096\">\n<p data-start=\"4054\" data-end=\"4096\">Demonstrable power gain on BMW E46 330i<\/p>\n<\/li>\n<li data-start=\"4052\" data-end=\"4096\">BMW E46 M52\/M54<\/li>\n<\/ul>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<h3>BMW E46 M52\/M54 Sport Spruitstuk met 300 Cells Sportkatalysatoren &amp; Middenpijp Schmiedmann<\/h3>\n<p>Improve the performance of your BMW E46 with this complete sport spaghetti manifold and sport centre pipe with 300 cells Euro3\/4 metal sport catalysts. Made of stainless steel 304 with mild steel flanges for optimal sealing. Includes adapter kit for single exhaust pipe models. The system is not E-approved and only suitable for track use. The pipes from the catalytic converter to the rear silencer are not included.<\/p>","protected":false},"featured_media":54835,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[390],"product_cat":[220,218,223],"product_tag":[605,4141,4139,4140],"giftcard-category":[],"class_list":["post-54833","product","type-product","status-publish","has-post-thumbnail","product_brand-schmiedmann","product_cat-middendempers","product_cat-katalysator","product_cat-uitlaat-spruitstuk","product_tag-bmw-e46","product_tag-m52-m54","product_tag-schmiedmann","product_tag-spaghetti-spruitstuk","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple","product-grid-view"],"exclude_global_add_ons":[],"addons":[],"acf":[],"_links":{"self":[{"href":"https:\/\/race4driftparts.com\/en\/wp-json\/wp\/v2\/product\/54833","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/race4driftparts.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/race4driftparts.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/race4driftparts.com\/en\/wp-json\/wp\/v2\/comments?post=54833"}],"version-history":[{"count":0,"href":"https:\/\/race4driftparts.com\/en\/wp-json\/wp\/v2\/product\/54833\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/race4driftparts.com\/en\/wp-json\/wp\/v2\/media\/54835"}],"wp:attachment":[{"href":"https:\/\/race4driftparts.com\/en\/wp-json\/wp\/v2\/media?parent=54833"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/race4driftparts.com\/en\/wp-json\/wp\/v2\/product_brand?post=54833"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/race4driftparts.com\/en\/wp-json\/wp\/v2\/product_cat?post=54833"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/race4driftparts.com\/en\/wp-json\/wp\/v2\/product_tag?post=54833"},{"taxonomy":"giftcard-category","embeddable":true,"href":"https:\/\/race4driftparts.com\/en\/wp-json\/wp\/v2\/giftcard-category?post=54833"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}