The MagnaFlow BRE 106-0682 is a direct-fit replacement exhaust system from BRExhaust, which the manufacturer notes has been part of the MagnaFlow Group since 2017. It is built as a bolt-on, multi-piece system in corrosion-resistant aluminized steel, with mandrel-bent pipes. The manufacturer says it is engineered for the factory exhaust reference 15577579 and is meant to match OE form, fit, and function on 1983-1991 Chevrolet S10 Blazer and GMC S15 Jimmy models. Compared with a generic replacement, the mandrel-bent tubing is the main reason to pay more: the manufacturer describes it as high-volume flow pipe, and the multi-piece design lets the installer work the system around axles, crossbars, and brackets. Search terms that fit this part include 1983-1991 S10 Blazer exhaust replacement, S15 Jimmy direct-fit exhaust, and 15577579 bolt-on exhaust.
No bending, welding, or cutting is required, which makes this a practical weekend job for a home mechanic. Owners on user forums report that the hardest part is usually the old hardware rather than the new system. Rusted hanger rods welded to the pipe often have to be cut or forced out of the rubber hangers, and corroded exhaust manifold or catalytic converter bolts can snap. Plan for penetrating oil, a cutoff tool as a backup, and a way to support the exhaust during removal. Fitment varies by trim across published fitment charts, so match your factory exhaust reference number before ordering.
The manufacturer lists 1983-1991 Chevrolet S10 Blazer and GMC S15 Jimmy models and references OE part 15577579. Published fitment charts do not agree on every trim level, so compare your factory exhaust part number with the manufacturer's reference before ordering, and confirm with the manufacturer if anything differs.
Per the manufacturer, no bending or welding is required for installation. Owners on user forums still recommend budgeting time for stubborn factory hangers and bolts, since those are the parts most likely to slow the job.
Owners on user forums report that the old hanger rods welded to the factory pipe are often cut off with a cutoff wheel or forced out of the rubber hangers. Reusing the rubber hangers is possible but takes patience.
This is a bolt-on job that most home mechanics can complete with basic hand tools, a jack or lift with jack stands, and penetrating oil for the rusty fasteners. Support the exhaust with a strap before removing the hangers and mounts. Owners on user forums warn that corroded catalytic converter bolts can snap, so soak them early and keep a cutoff tool on hand. Test-fit the front section before fully tightening the clamps, and work the multi-piece pipes around the axle and crossbar. Check the box contents against the manufacturer's install instructions, since the manufacturer says gaskets and clamps are included as required.
