![]() ![]() However, if you have a stock engine with no modifications, and relatively new OEM catalytic converters, you won't see much of performance increase going with high flow cats. Same goes for any vehicle with old or cheap catalytic converters that are impeding flow. Vehicle owners who've significantly upgraded their engine power output will notice more power by upgrading. Yes in the sense that they allow for the more efficient flow of exhaust gasses, removing restrictions that can impede performance. While not exactly "cheap," high-flow catalytic converters are specifically designed to meet or exceed OE quality and performance standards without sacrificing flow rate. If, for example, you've got a discount after-market catalytic converter installed, the original OE converter that's years old, OR you've got an engine that makes significantly more power than stock, a high flow cat might be for you. Part of the problem is that the catalytic converter isn't always designed with your specific vehicle performance in mind, and part of the problem is that some catalytic converters aren't flowing well because they're old, they're cheaply constructed, etc. The problem with regular catalytic converters is that they don’t always allow the gasses to pass through as efficiently as possible. This, in turn, makes the exhaust gases quite a bit cleaner. ![]() As the gasses come into contact with these metals, they undergo a chemical reaction that essentially "re-burns" the exhaust to eliminate nitrous oxides, sulfur oxides, and carbon monoxide as much as possible. These materials are mainly Platinum, Palladium and Rhodium. What Do High Flow Cats Do?Ī regular catalytic converter works by having the exhaust gasses flow through a ceramic honeycomb structure that is coated in various rare metals. However, many wonder if high flow cats are worth the investment - here's the breakdown. This is where a high flow catalytic converter comes into play. Just as you won't get as much power from your engine if it’s struggling to get air into it, the same is true for the exhaust gasses. Even if your vehicle is already heavily modified, you might be missing out on some power via the exhaust flow. ![]()
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