The B191-C191 frontpipe back exhaust system delivers a bold, sporty sound for the 2018-2022 Honda Accord while keeping highway cruising quiet and comfortable. Built by Thermal R&D with True Helmholtz Technology, the B191-C191 eliminates the interior drone that ruins most aftermarket Accord exhausts. Constructed from mandrel bent T304 stainless steel, the B191-C191 replaces everything from the frontpipe back and finishes with quad exit polished tips for a clean, aggressive stance.
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2018-2022 | Honda | Accord | Sport |
| Detail | Value |
|---|---|
| Part Number | B191-C191 |
| Material | T304 Stainless Steel |
| Pipe Diameter | 3 inch frontpipe, 2.5 inch tailpipes |
| Tip Finish | Polished, quad exit |
| Installation | No cutting or welding required |
| Warranty | Lifetime Manufacturer Warranty |
| Country of Manufacture | United States |
Thermal R&D designs and manufactures performance exhaust systems in the United States using premium T304 stainless steel. The brand is known for its proprietary Helmholtz chamber technology, which allows drivers to enjoy a deeper, more aggressive exhaust tone without the drone that typically comes with aftermarket systems. Every Thermal R&D exhaust is backed by a lifetime manufacturer warranty.
The B191-C191 is a 3 inch frontpipe back exhaust system from Thermal R&D built for the 2018-2022 Honda Accord Sport, featuring mandrel bent T304 stainless steel and polished quad exit tips.
Does the B191-C191 fit both the 1.5T and 2.0T Accord engines?Yes, the B191-C191 is engineered to fit both the 1.5T and 2.0T Accord Sport engine variants.
Will the B191-C191 require any cutting or welding to install?No, the B191-C191 is a direct fit system that uses the factory hangers and mounting points, so no cutting or welding is needed.
Does the B191-C191 affect the catalytic converters or emissions equipment?No, the B191-C191 connects after the factory catalytic converters and does not alter emissions equipment.
Is the B191-C191 loud at idle and during highway cruising?The B191-C191 uses Helmholtz chamber technology to keep idle and cruising noise moderate while producing an aggressive tone under acceleration.
Can I install the B191-C191 in my home garage?Yes, most installers complete the B191-C191 in a few hours using basic hand tools and a lift or jack stands.
What is the difference between the B191-C191 and the coated tip version?The B191-C191 comes with polished stainless tips, while the coated tip version of the same system uses a black ceramic finish. Both share the same T304 stainless piping.
Does the B191-C191 come with a warranty?Yes, the B191-C191 is backed by the Thermal R&D Lifetime Manufacturer Warranty against defects in materials and workmanship.
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