Exhausts, CATS and accessories 42 www.aftermarketonline.net NOVEMBER 2025 Using the kits can help prevent invalidating warranties Aftermarket hot end emissions products manufacturer, BM Catalysts, is helping technicians reap the benefits of its extensive range of fitting kits — by stressing the importance of using new fittings when replacing an emissions control product. As well as frequent additions to its range of emissions control products, BM Catalysts also ensures, where required, technicians have access to the accompanying mounting components, with fitting kits being launched as standard with most new-torange products. Kits can include anything from gaskets and clamps to washers and springs, as well as specialist nuts and bolts. James Saunders, technical director at BM Catalysts, said fitting kits are a small but important factor to consider when buying or fitting a replacement emissions control product. “The benefits of using a new fitting kit outweigh the costs and we encourage technicians to utilise the kits in our range to help prevent invalidating warranties and the complications that can arise from trying to reuse old or existing fittings.” Over time, gaskets can suffer wear and tear which could cause them to break. Fitting new gaskets at the time of replacing the unit itself helps eliminate this risk and creates a better, tighter seal. With manifold catalytic converters, this means that gases are less likely to leak. “As manifold gaskets are compression gaskets, it’s unlikely even the most skilled of technicians will be able to get them in the exact same position again if they intend on reusing them,” Saunders said. Much like gaskets, support rubbers can deteriorate and break over time, with rubber known to perish with age. Failure to replace worn support rubbers or hangers can allow too much movement in the exhaust, which could cause damage to the replacement unit. Should an underfloor unit become detached and hit the ground, it could potentially destroy the internal monolith, requiring a costly replacement. Rusty nuts and bolts can sometimes lose threads, meaning they may not be long enough to fit the new unit — something usually not discovered until the unit is about to be fitted onto the vehicle. Buying replacements in advance may help avoid delays or unnecessary complications. What’s more, springs can lose their strength and so cannot hold joints together effectively, thus allowing the joints to blow. The company is also warning against the use of exhaust paste. Using this in front of a catalytic converter to try and rectify fitting issues will invalidate the unit’s warranty. BM Catalysts recommends using a kit designed specifically to fit the unit to the vehicle to avoid complications and possible warranty failures. The firm’s fitting kit coverage boasts 87% coverage of its catalytic converters, 98% of its DPFs, 100% of its SCRs, and 90% of its pipes, while also covering 100% of its top 100 parts. Visit www.bmcatalysts. com to see the full BM Catalysts parts range. 7HFKQLFLDQV JHW Ꭾ WWLQJ DGYLFH IRU replacement kits to control emissions Technicians can also have access to accompanying mounting components
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