{"product_id":"audirs4b9lhddownpipeswith200cellhi-flowsportscats-heatshield2017-980","title":"AUDIRS4B9LHDDOWNPIPESWITH200CELLHI-FLOWSPORTSCATS\u0026HEATSHIELD2017-","description":"\u003cp\u003eMTC Motorsport Audi RS4 B9 Stainless Steel Downpipes With Hi-Flow 200 Cell Sports Cat and Heat Shield for LHD cars only. This will not fit RHD UK cars and we don’t make them unfortunately.The RS4 downpipes are machined from T-304 high-grade stainless steel and are tig welded in house.Our downpipes come straight from the turbo providing a sharper throttle response due to a faster spool of the turbo.They will provide noticeable power gains and a much more aggressive exhaust note which sounds amazing.They produce lower temperatures and less exhaust backpressure due to the relief of the turbocharger. The cylinder charge is increased which gives you maximum performance.Finished in brushed stainlessThese will fit the following models:Audi RS4 B9 2017-We have tested this product and found increases of around 40-45bhp without tuning and 140bhp+ on a tuned car.Professional installation is recommended as some exhausts sit slightly different from others and can be tight.If you have a later model car with OPF\/PPF filters they will need coding out so you will need to find a tuning company who can do this.Note: we cannot guarantee that these will pass an MOT test.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Default Title","offer_id":45668757045439,"sku":"980","price":419.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0749\/3802\/4127\/files\/audirs4b9lhddownpipeswith200ce_980_01_f17c1e65.jpg?v=1779965199","url":"https:\/\/turboautoworks.com\/products\/audirs4b9lhddownpipeswith200cellhi-flowsportscats-heatshield2017-980","provider":"turboautoworks","version":"1.0","type":"link"}