{"product_id":"milltek-hjs-tuning-ece-downpipes-audi-s4-3-0-turbo-v6-b9-saloon-avant-non-gpf-non-sport-diff-rhd-16","title":"Milltek HJS Tuning ECE Downpipes Audi S4 3.0 Turbo V6 B9 Saloon Avant Non-GPF Non Sport Diff RHD 16+","description":"\u003ch2\u003eMilltek HJS Tuning ECE Downpipes for Audi S4 3.0 Turbo V6 B9 - Saloon\/Sedan \u0026amp; Avant (NON GPF ONLY - Non Sport Diff Models) - Left Hand Drive Cars Only (2016 onwards) – Improved Flow, Sports Catalyst\u003c\/h2\u003e\n\u003cp\u003eThis is Milltek's HJS Tuning ECE downpipe set for the Audi S4 3.0 Turbo V6 B9 - Saloon\/Sedan \u0026amp; Avant (NON GPF ONLY - Non Sport Diff Models) - Right Hand Drive Cars Only. These replace the factory downpipes with HJS high-flow sports catalysts that carry full ECE type-approval, so you get a genuine flow improvement over the restrictive factory units without taking the car outside emissions compliance.\u003c\/p\u003e\n\u003cp\u003eThey're aimed at drivers who want more from the downpipes than the standard units allow, but need the car to stay legally usable on the road and pass an emissions test, which a straight de-cat pipe won't do.\u003c\/p\u003e\n\u003cp\u003eBecause they're type-approved, these can be run on a car that's used on the road, unlike a straight de-cat pipe.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem Type:\u003c\/strong\u003e HJS Tuning ECE Downpipes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePipe Diameter:\u003c\/strong\u003e 63.5mm (2.5\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEC Approved:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRace System:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting Time:\u003c\/strong\u003e approx. 1 to 1.5 hours (Milltek figure)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMade from T304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration\u003c\/li\u003e\n\u003cli\u003eMandrel-bent pipework keeps a constant diameter through every bend for unrestricted flow\u003c\/li\u003e\n\u003cli\u003e63.5mm (2.5\") pipework\u003c\/li\u003e\n\u003cli\u003eHigh-flow sports catalyst flows better than the dense factory unit while still treating exhaust gases\u003c\/li\u003e\n\u003cli\u003eEC approved\u003c\/li\u003e\n\u003cli\u003eDesigned, developed and manufactured in the UK by Milltek Sport\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi S4 3.0 Turbo V6 B9 - Saloon\/Sedan \u0026amp; Avant (NON GPF ONLY - Non Sport Diff Models) - Left Hand Drive Cars Only (2016 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi S4 3.0 Turbo V6 B9 - Saloon\/Sedan \u0026amp; Avant (NON GPF ONLY - Non Sport Diff Models) - Right Hand Drive Cars Only (2016 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi S4 3.0 Turbo V6 B9 - Saloon\/Sedan \u0026amp; Avant (NON GPF ONLY - Sport Diff Models Only \u0026amp; Without Brace Bars) - Left Hand Drive Cars Only (2016 onwards)\u003c\/li\u003e\n\u003cli\u003eAudi S4 3.0 Turbo V6 B9 - Saloon\/Sedan \u0026amp; Avant (NON GPF ONLY - Sport Diff Models Only \u0026amp; Without Brace Bars) - Right Hand Drive Cars Only (2016 onwards)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot suitable for:\u003c\/strong\u003e Audi S4 3.0 GPF ONLY - Non Sport Diff models, or any model not listed above.\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes a fitting time of approx. 1 to 1.5 hours. Before ordering, note: Fits with OE and Milltek Sport Cat back Systems (EC Approved). This work involves removing parts close to the turbo and engine, so we recommend fitting by a specialist with a ramp and suitable software support.\u003c\/p\u003e\n\u003ch3\u003eUpgrade Further\u003c\/h3\u003e\n\u003cp\u003eAlso available from Milltek for this car: \u003ca href=\"\/products\/milltek-active-valve-control-audi-s4-3-0-turbo-v6-b9-saloon-avant-non-gpf-non-sport-diff-lhd-16\"\u003eMilltek Active Valve Control Audi S4 3.0 Turbo V6 B9 - Saloon \u0026amp; Avant (NON GPF - Non Sport Diff Models) - Left Hand Drive Cars 16+\u003c\/a\u003e, \u003ca href=\"\/products\/milltek-cat-back-exhaust-audi-s4-3-0-turbo-v6-b9-saloon-avant-non-gpf-non-sport-diff-lhd-16\"\u003eMilltek Cat-back Exhaust Audi S4 3.0 Turbo V6 B9 - Saloon \u0026amp; Avant (NON GPF - Non Sport Diff Models) - Left Hand Drive Cars 16+\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWill it fit the Audi S4 3.0 Turbo V6 B9 - Saloon\/Sedan \u0026amp; Avant (NON GPF ONLY - Non Sport Diff Models) - Right Hand Drive Cars Only?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek lists this part for the Audi S4 3.0 Turbo V6 B9 - Saloon\/Sedan \u0026amp; Avant (NON GPF ONLY - Non Sport Diff Models) - Right Hand Drive Cars Only as well as the other models in the fitment list above.\u003c\/p\u003e\n\u003ch3\u003eIs it road legal?\u003c\/h3\u003e\n\u003cp\u003eEvery version of this part is listed by Milltek as EC approved.\u003c\/p\u003e\n\u003ch3\u003eDo I need a remap?\u003c\/h3\u003e\n\u003cp\u003eA suitable remap is strongly recommended, as the engine management needs to account for the change in flow and sensor readings. Speak to your tuner before fitting.\u003c\/p\u003e\n\u003ch3\u003eCan I use it with my standard exhaust?\u003c\/h3\u003e\n\u003cp\u003eIt depends on the version. Some are made for the factory (OE) system and others for the Milltek cat-back, so check the notes for the option you choose.\u003c\/p\u003e\n\u003ch3\u003eHow is a sports cat different from a de-cat?\u003c\/h3\u003e\n\u003cp\u003eA sports cat still contains a catalyst, just a less dense one that flows better than the factory unit. A de-cat removes the catalyst completely.\u003c\/p\u003e\n\u003ch3\u003eHow long does it take to fit?\u003c\/h3\u003e\n\u003cp\u003eMilltek quotes approx. 1 to 1.5 hours.\u003c\/p\u003e\n\u003ch3\u003eWhat is it made from?\u003c\/h3\u003e\n\u003cp\u003eT304L aircraft-grade stainless steel, which is anti-magnetic and resists discolouration better than lower grades.\u003c\/p\u003e\n\u003ch3\u003eIs there a warranty?\u003c\/h3\u003e\n\u003cp\u003eYes. Milltek products are covered against defects in materials and workmanship. Contact us with your order number if you have a problem.\u003c\/p\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":56392728510849,"sku":"MIL-SSXAU725","price":3481.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0667\/3232\/7161\/files\/SSXAU725_1_7222d4ef-c6d7-4ab6-9a18-5a520613b444.jpg?v=1791891301","url":"https:\/\/milltekexhaustshop.com\/products\/milltek-hjs-tuning-ece-downpipes-audi-s4-3-0-turbo-v6-b9-saloon-avant-non-gpf-non-sport-diff-rhd-16","provider":"Milltek Exhaust Shop","version":"1.0","type":"link"}