{"product_id":"magnaflow-muff-gp-3-5-dia-18inch-2-25-2-25","title":"MagnaFlow 3.5in Round Glasspack Muffler 18in Body 2.25in Center In and Out","description":"\u003ch4\u003eA Reversible Straight-Through Glasspack With the Classic Deep Tone\u003c\/h4\u003e\u003cp\u003eThis is the MagnaFlow 18125, a universal glasspack muffler with a 3.5 in round body, an 18 in body length and a 22 in overall length. Inlet and outlet are both 2.25 in and both centred, and the straight-through core is single-stage packed to produce the deep tone glasspacks are bought for.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eReversible straight-through glasspack core, so it can be installed with flow in either direction.\u003c\/li\u003e\n\u003cli\u003eSingle-stage packing for the classic deep glasspack note.\u003c\/li\u003e\n\u003cli\u003e3.5 in by 3.5 in round body with an 18 in body length and 22 in overall length.\u003c\/li\u003e\n\u003cli\u003eTrue 2.25 in center-in and 2.25 in center-out configuration with a single outlet and no tip.\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant aluminized steel body with an aluminized finish.\u003c\/li\u003e\n\u003cli\u003eCNC robotic manufacturing for consistent seam and core placement.\u003c\/li\u003e\n\u003cli\u003eMagnaFlow explicitly warns to check local noise regulations before fitting a glasspack.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment type\u003c\/td\u003e\n\u003ctd\u003eUniversal, not vehicle specific\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet\u003c\/td\u003e\n\u003ctd\u003e2.25 in, centred\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutlet\u003c\/td\u003e\n\u003ctd\u003e2.25 in, centred, single outlet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody\u003c\/td\u003e\n\u003ctd\u003e3.5 in round, 18 in long\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall length\u003c\/td\u003e\n\u003ctd\u003e22 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTypical applications\u003c\/td\u003e\n\u003ctd\u003eCars, trucks and SUVs with a 2.25 in exhaust, fitted as part of a custom exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThis muffler carries no vehicle fitment. It is selected by pipe diameter, body clearance and desired tone, and it requires custom exhaust work to install.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMagnaFlow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMPN\u003c\/td\u003e\n\u003ctd\u003e18125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eGlasspack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eGlasspack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal construction\u003c\/td\u003e\n\u003ctd\u003eStraight-through, single-stage packed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminized steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody finish\u003c\/td\u003e\n\u003ctd\u003eAluminized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody shape\u003c\/td\u003e\n\u003ctd\u003e3.5 in x 3.5 in round\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody width\u003c\/td\u003e\n\u003ctd\u003e3.5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody length\u003c\/td\u003e\n\u003ctd\u003e18 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall length\u003c\/td\u003e\n\u003ctd\u003e22 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eCenter in, center out\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet and outlet size\u003c\/td\u003e\n\u003ctd\u003e2.25 in \/ 2.25 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutlet quantity\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutlet style\u003c\/td\u003e\n\u003ctd\u003eStandard, no tip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHanger included\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage dimensions\u003c\/td\u003e\n\u003ctd\u003e26.80 x 4.90 x 4.60\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e90-day limited construction warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch4\u003eWhat's Included\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOne MagnaFlow glasspack muffler\u003c\/li\u003e\n\u003cli\u003eGaskets and hardware are not included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eAbout MagnaFlow\u003c\/h4\u003e\u003cp\u003eMagnaFlow's glasspack range is the simplest silencer the company builds: a perforated straight-through core wrapped in packing, with no chambers and no restriction plate. That construction is why glasspacks flow well and sound the way they do, and why they are usually welded into a custom system rather than bolted into a factory one.\u003c\/p\u003e\u003ch4\u003eFAQ\u003c\/h4\u003e\u003cstrong\u003eHow is a glasspack different from a chambered muffler?\u003c\/strong\u003e\u003cp\u003eA glasspack runs a straight perforated core wrapped in packing material rather than internal baffle chambers, which is why the body is a simple round tube with matched inlet and outlet sizes.\u003c\/p\u003e\u003cstrong\u003eIs it a chambered muffler?\u003c\/strong\u003e\u003cp\u003eNo. It is a straight-through glasspack with single-stage packing, which is a different silencing principle to a chambered design.\u003c\/p\u003e\u003cstrong\u003eCan it be installed backwards?\u003c\/strong\u003e\u003cp\u003eIt is reversible, so it can be fitted in either flow direction during a custom installation.\u003c\/p\u003e\u003cstrong\u003eHow long is it overall?\u003c\/strong\u003e\u003cp\u003e22 in overall, with an 18 in body between the necks.\u003c\/p\u003e\u003cstrong\u003eDoes it come with a tip?\u003c\/strong\u003e\u003cp\u003eNo. The outlet is a plain 2.25 in standard style with no tip.\u003c\/p\u003e\u003cstrong\u003eIs a hanger supplied?\u003c\/strong\u003e\u003cp\u003eNo, and no gaskets or clamps are supplied either. Everything mounting-related is separate.\u003c\/p\u003e\u003cstrong\u003eWhat is the body made of?\u003c\/strong\u003e\u003cp\u003eAluminized steel with an aluminized finish, built with CNC robotic manufacturing.\u003c\/p\u003e\u003cstrong\u003eIs it street legal?\u003c\/strong\u003e\u003cp\u003eNoise limits are set locally. MagnaFlow specifically warns to check local noise regulations before fitting a glasspack.\u003c\/p\u003e\u003cstrong\u003eWhat warranty applies?\u003c\/strong\u003e\u003cp\u003eA 90-day limited construction warranty, which is much shorter than MagnaFlow's performance system coverage.\u003c\/p\u003e\u003ch4\u003eInstallation Instructions\u003c\/h4\u003e\u003col\u003e\n\u003cli\u003eConfirm the exhaust is 2.25 in at the point the muffler will go, since both the inlet and the outlet are 2.25 in centred necks.\u003c\/li\u003e\n\u003cli\u003eMeasure the available space: the body needs clearance for a 3.5 in diameter over an 18 in run, with 22 in of total length including the necks.\u003c\/li\u003e\n\u003cli\u003eCut the existing pipe square at the chosen location and deburr both ends.\u003c\/li\u003e\n\u003cli\u003eDry-fit the muffler, decide the flow direction, and mark the orientation before committing.\u003c\/li\u003e\n\u003cli\u003eSupport the muffler on a stand or a wire while it is positioned, because no hanger is supplied with it.\u003c\/li\u003e\n\u003cli\u003eWeld or clamp the inlet and outlet joints, and add a hanger at or near the muffler so its weight is not carried by the pipe joints alone.\u003c\/li\u003e\n\u003cli\u003eCheck clearance to the floor pan, fuel and brake lines, and the driveshaft before final welding.\u003c\/li\u003e\n\u003cli\u003eRun the engine and check the joints for leaks, and confirm the resulting noise level against local regulations.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Magnaflow","offers":[{"title":"Default Title","offer_id":46371850584143,"sku":"MAG18125","price":45.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/magnaflow-18125-glasspack-muffler-3-5in-round-16.jpg?v=1786320059","url":"https:\/\/www.blackopsautoworks.com\/products\/magnaflow-muff-gp-3-5-dia-18inch-2-25-2-25","provider":"Black Ops Auto Works","version":"1.0","type":"link"}