{"title":"Exhausts","description":null,"products":[{"product_id":"e36-turbo-downpipe","title":"BMW E36 Turbo Downpipe","description":"\u003cp\u003eNow offering our V2 downpipe which maximizes space between the strut tower and valve cover.\u003c\/p\u003e\n\u003cp\u003eThis downpipe is for the E36 RSI Turbo manifold with Garret GT3582R.\u003c\/p\u003e\n\u003cp\u003ePerfect fitment! Both Vband flanges will also allow for some movement at either end to help align this downpipe perfectly. Includes recirculating wastegate pipe with built in flex section to make install and removal hassle free.\u003c\/p\u003e\n\u003cp\u003e- Follows factory routing beside transmission and over support bar.\u003cbr\u003e- 3\" diameter tubing .065\" wall.\u003cbr\u003e- Designed for use with Turbosmart Hypergate 45.\u003cbr\u003e- Available in both 304L and 316L stainless steel.\u003cbr\u003e- O2 bung positioned for ease of access.\u003c\/p\u003e\n\u003cp\u003eIncludes 2 sections,  \u003cbr\u003e- Turbo downpipe from turbo to support brace beside transmission\u003cbr\u003e- Wastegate pipe from wastegate to downpipe\u003cbr\u003e           -Also includes all Vband flange connections.\u003c\/p\u003e\n\u003cp\u003eThese units are made on demand please allow up to 4 weeks for delivery.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThese downpipes can also be fitted with our insulation and shielding, select the option at checkout.\u003c\/p\u003e","brand":"Muz Fabrication Inc.","offers":[{"title":"304 Stainless Steel \/ 6mm ceramic insulation and 316L stainless shell","offer_id":46585117409446,"sku":null,"price":1499.99,"currency_code":"CAD","in_stock":true},{"title":"304 Stainless Steel \/ None","offer_id":46585125175462,"sku":null,"price":999.99,"currency_code":"CAD","in_stock":true},{"title":"316 Stainless Steel \/ 6mm ceramic insulation and 316L stainless shell","offer_id":46585117442214,"sku":null,"price":1799.99,"currency_code":"CAD","in_stock":true},{"title":"316 Stainless Steel \/ None","offer_id":46585125208230,"sku":null,"price":1299.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/6238\/6342\/files\/DSC01193.png?v=1758230404"},{"product_id":"2025-kia-k4-gt-line-1-6t-hatchback-axle-back-exhaust","title":"2025+ Kia K4 GT-Line 1.6T Hatchback Axle-Back Exhaust","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eGive the new Kia K4 GT-Line 1.6 Turbo the exhaust note it should have had from the factory.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eMUZ Fabrication 2025+ Kia K4 GT-Line Hatchback Axle-Back Exhaust\u003c\/strong\u003e was developed as a direct-fit upgrade for owners looking for a deeper, more refined exhaust tone without sacrificing the drivability and fitment expected from a daily-driven vehicle.\u003c\/p\u003e\n\u003cp\u003eRather than simply removing muffling to create more volume, our system was designed around \u003cstrong\u003esound quality, exhaust flow and fabrication quality\u003c\/strong\u003e. The result is a smooth, deep and sporty exhaust note with more presence on startup and under acceleration, while avoiding the excessive rasp, harshness and unwanted resonance commonly associated with overly aggressive axle-back systems.\u003c\/p\u003e\n\u003ch3\u003eFull 2.5\" Exhaust Path\u003c\/h3\u003e\n\u003cp\u003eThe MUZ axle-back uses \u003cstrong\u003e2.5-inch 304 stainless steel tubing throughout the entire system\u003c\/strong\u003e, providing a consistent exhaust path from the inlet flange through to the outlet.\u003c\/p\u003e\n\u003cp class=\"\"\u003eParticular attention was paid to the factory connection. As shown in our comparison photos, the OEM axle-back uses a noticeably restricted inlet opening and transition. Our replacement flange and tubing maintain the \u003cstrong\u003efull 2.5-inch flow area\u003c\/strong\u003e, eliminating the unnecessary neck-down at the entrance to the axle-back.\u003c\/p\u003e\n\u003cp\u003eThis creates a smoother transition into the system and complements the increased airflow demands of the \u003cstrong\u003e1.6L turbocharged engine\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eDesigned for Sound Quality — Not Just Volume\u003c\/h3\u003e\n\u003cp\u003eA good exhaust should do more than make a car louder.\u003c\/p\u003e\n\u003cp\u003eThe muffler configuration and 2.5-inch tubing used in the MUZ system were selected to produce a \u003cstrong\u003edeeper, fuller exhaust note\u003c\/strong\u003e while maintaining the refinement expected from a modern street car.\u003c\/p\u003e\n\u003cp\u003eAt idle and during normal driving, the exhaust retains a clean and controlled character. Under throttle, the 1.6T develops a significantly more pronounced and engaging exhaust note without introducing the hollow, raspy or excessively boomy sound often associated with straight-through muffler deletes and oversized exhaust systems.\u003c\/p\u003e\n\u003cp\u003eThe goal is an \u003cstrong\u003eOEM+ sound profile\u003c\/strong\u003e: noticeably sportier than stock, but still something you can comfortably live with every day.\u003c\/p\u003e\n\u003ch3\u003eBack-Purged TIG Welded Construction\u003c\/h3\u003e\n\u003cp\u003eFabrication quality is just as important as the finished appearance.\u003c\/p\u003e\n\u003cp\u003eEvery MUZ K4 axle-back is \u003cstrong\u003eTIG welded and back purged during fabrication\u003c\/strong\u003e, protecting the inside of the stainless tubing from oxidation while the weld is being made. This produces a cleaner internal weld surface and helps maintain a smooth exhaust path through each welded joint.\u003c\/p\u003e\n\u003cp\u003eThe inlet flange is also \u003cstrong\u003ewelded from both sides\u003c\/strong\u003e, providing additional strength at one of the most highly loaded areas of the exhaust system while allowing the internal transition to be finished cleanly.\u003c\/p\u003e\n\u003cp\u003eIt is a level of fabrication normally associated with custom motorsport exhaust work rather than a typical mass-produced axle-back.\u003c\/p\u003e\n\u003ch3\u003eDirect-Fit OEM-Style Installation\u003c\/h3\u003e\n\u003cp\u003eThe system is built around the factory exhaust layout and mounting locations for straightforward installation.\u003c\/p\u003e\n\u003cp\u003eThe factory axle-back is removed and the MUZ assembly installs using the original connection point and exhaust hanger locations, maintaining proper positioning and clearance beneath the vehicle.\u003c\/p\u003e\n\u003cp\u003eThe finished system follows the natural routing of the K4 rear suspension and chassis while replacing the large factory rear muffler assembly with a much more compact performance-oriented design.\u003c\/p\u003e\n\u003ch3\u003eBuilt by MUZ Fabrication\u003c\/h3\u003e\n\u003cp\u003eUnlike a universal muffler adapted to the vehicle, this axle-back was developed specifically around the \u003cstrong\u003e2025+ Kia K4 GT-Line Hatchback\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eEach system reflects the same fabrication standards we use throughout our custom exhaust, turbo and motorsport work at MUZ Fabrication: proper material preparation, accurate fitment, back-purged TIG welding and careful attention to the internal exhaust path—not simply how the welds look from the outside.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for the \u003cstrong\u003e2025+ Kia K4 GT-Line 1.6L Turbo Hatchback\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eFull 2.5\" tubing construction\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eFull-flow 2.5\" inlet rather than the restrictive factory-style neck-down\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e304 Stainless-steel construction\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eTIG welded throughout\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eBack purged during welding\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eInlet flange welded internally and externally\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eCompact performance muffler\u003c\/li\u003e\n\u003cli\u003eDeep, smooth and refined exhaust tone\u003c\/li\u003e\n\u003cli\u003eIncreased exhaust presence under acceleration\u003c\/li\u003e\n\u003cli\u003eDesigned to minimize unwanted rasp, harshness and resonance\u003c\/li\u003e\n\u003cli\u003eUses factory-style mounting locations\u003c\/li\u003e\n\u003cli\u003eDirect replacement for the factory axle-back assembly\u003c\/li\u003e\n\u003cli\u003ePolished performance appearance\u003c\/li\u003e\n\u003cli\u003eDesigned and fabricated by \u003cstrong\u003eMUZ Fabrication Inc. in Ontario, Canada\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSound\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStock:\u003c\/strong\u003e Quiet, highly subdued and designed primarily around factory noise targets.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMUZ Axle-Back:\u003c\/strong\u003e Deeper and fuller at idle, more pronounced on startup and noticeably more aggressive under acceleration while retaining a smooth, mature tone suitable for daily use.\u003c\/p\u003e\n\u003cp\u003eThis isn't intended to turn the K4 into an excessively loud or harsh car. The objective was to \u003cstrong\u003ebring out the character of the turbocharged 1.6L engine while keeping the exhaust clean and refined.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle:\u003c\/strong\u003e Kia K4 GT-Line Hatchback\u003cbr\u003e\u003cstrong\u003eModel Years:\u003c\/strong\u003e 2025+\u003cbr\u003e\u003cstrong\u003eEngine:\u003c\/strong\u003e 1.6L Turbocharged\u003cbr\u003e\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Axle-back exhaust\u003cbr\u003e\u003cstrong\u003eTubing Diameter:\u003c\/strong\u003e 2.5\"\u003c\/p\u003e","brand":"Muz Fabrication","offers":[{"title":"Default Title","offer_id":57368743182502,"sku":null,"price":849.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0656\/6238\/6342\/files\/kiak4gtmuzproductimage.png?v=1789331048"}],"url":"https:\/\/muzfabrication.com\/collections\/exhausts.oembed","provider":"Muz Fabrication","version":"1.0","type":"link"}