{"product_id":"2-5-in-exhaust-tubing-bend-kit-ztl-25raw-8p-diy-mandrel-bend","title":"2.5 in Exhaust Tubing Bend Kit ZTL-25RAW-8P - DIY Mandrel Bend","description":"\u003cp\u003eIn this review the ZTL-25RAW-8P kit is judged as a practical, no-nonsense exhaust tubing set for DIY fabricators who need a complete selection of mandrel-bent pipes. The biggest reason to buy is its combination of 18-gauge mild steel with computerized mandrel bends, which gives a sturdy tubing set that fits tightly and supports smooth exhaust flow for custom builds or swaps. It is clearly aimed at home fabricators and professionals who want a universal, slip-fit kit to build or repair exhaust systems.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e18-gauge piping walls:\u003c\/strong\u003e Provides a solid balance of strength and formability for welding and bending without excess weight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2.5 in outlet size:\u003c\/strong\u003e The 2.5 in OD inlet and outlet is a common diameter that supports good exhaust flow and matches many mid-size systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlip fit joints:\u003c\/strong\u003e Slip fit connections make alignment and tack welding faster, simplifying fabrication for DIY installers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMandrel bends:\u003c\/strong\u003e Computerized mandrel bends maintain a smooth internal radius to minimize turbulence and help maximize flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e Includes straight pipes and 45, 90 and 180 U-bends so users can route a full custom exhaust without buying additional sections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMild steel construction:\u003c\/strong\u003e Allows easy welding with common methods and flux core, making it convenient for home shops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is best for DIY fabricators, small shop mechanics and enthusiasts building or repairing mid-size exhaust systems who need a ready set of mandrel-bent tubing in 2.5 in OD. It suits projects where weldability and a range of bend angles are important, such as swaps, muffler deletes, custom headers and exhaust routing for trucks and SUVs.\u003c\/p\u003e\n\u003cp\u003eThose who should look elsewhere include builders who need stainless steel for long-term corrosion resistance or anyone requiring nonstandard diameters; this kit is mild steel and optimized for versatility and affordability rather than ultimate rust resistance.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGood buildability thanks to \u003cstrong\u003e18-gauge\u003c\/strong\u003e walls and slip-fit joints that make welding straightforward.\u003c\/li\u003e\n\u003cli\u003eIncludes a useful selection of bends and straights so many custom runs can be completed from one kit.\u003c\/li\u003e\n\u003cli\u003eMandrel-bent sections preserve internal flow for improved exhaust performance.\u003c\/li\u003e\n\u003cli\u003eCustomers report strong value for money and tight fit between pieces for easy assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMade of mild steel so long-term \u003cstrong\u003erust resistance\u003c\/strong\u003e varies by environment; some users report surface rust over time.\u003c\/li\u003e\n\u003cli\u003eNot a stainless option, so extra coating or wrapping may be needed for corrosive climates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eMild steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWall thickness\u003c\/td\u003e\n\u003ctd\u003e18-gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet \/ outlet size\u003c\/td\u003e\n\u003ctd\u003e2.5 in OD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKit contents\u003c\/td\u003e\n\u003ctd\u003e2x 48 in straights, 2x 90 deg, 2x 45 deg, 2x 180 deg U-bends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBend type\u003c\/td\u003e\n\u003ctd\u003eComputerized mandrel bends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJoint type\u003c\/td\u003e\n\u003ctd\u003eSlip fit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe ZTL-25RAW-8P is a practical, cost-effective exhaust tubing kit for anyone building a custom 2.5 in system who values weldability and a complete range of bends. It offers good durability and flow-friendly mandrel bends at an attractive price, but builders in corrosive environments should plan protective coatings or choose stainless alternatives.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill these pieces weld well with flux core?\u003c\/strong\u003e\u003cbr\u003eYes, customers report the mild steel and 18-gauge walls weld easily with flux core and standard MIG processes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the bends mandrel formed?\u003c\/strong\u003e\u003cbr\u003eYes, the kit uses computerized mandrel bends to maintain smooth internal radii and minimize flow restriction.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this kit rust resistant?\u003c\/strong\u003e\u003cbr\u003eNot inherently; mild steel can surface rust over time, so painting or coating is recommended for long-term corrosion protection.\u003c\/p\u003e","brand":"DNA MOTORING","offers":[{"title":"Default Title","offer_id":48232566456539,"sku":"B0BPWW776Q","price":94.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51PitaV3NML._AC_SL1500.jpg?v=1770914564","url":"https:\/\/gearmusthave.com\/products\/2-5-in-exhaust-tubing-bend-kit-ztl-25raw-8p-diy-mandrel-bend","provider":"GearMustHave","version":"1.0","type":"link"}