Part #: IS - HFC - Z33. ISR Performance high flow catalytic converters are custom - crafted using a 300 - cell spun metallic substrate. This design is less restrictive than the stock version, allowing you to boost your vehicle's power while effectively converting harmful exhaust gases. These HFCs are fully TIG welded with true mandrel bends, ensuring a smooth exhaust flow. They can be easily bolted onto factory or aftermarket exhaust systems (as long as the aftermarket exhaust adheres to OEM specs). The ISR HFC retains the factory oxygen sensor location and gives your exhaust a more aggressive tone. Note that these HFCs are for 350Z DE engines. For 07+ 350Z with HR engines, please use IS - HFC - Z34 / 370Z. All ISR Performance products are designed for off - road use only. What's in the box: 2 stainless steel high flow cats, 2 two - bolt exhaust gaskets, and 2 three - bolt exhaust gaskets.
Using your ISR Performance high flow catalytic converter is easy. First, make sure your vehicle is a 2003 - 2006 Nissan 350z Z33 with a VQ35DE engine. If you have a 07+ 350Z with an HR engine, don't use this product; instead, get the IS - HFC - Z34 / 370Z. Before installation, check that your exhaust system (either factory or aftermarket built to OEM specs) is in good condition. Then, simply bolt the catalytic converters onto the exhaust using the provided gaskets. Remember, these products are for off - road use only, so don't use them on public roads. For maintenance, periodically check the welds for any signs of damage or wear. If you notice any issues, it's best to have a professional mechanic take a look. Keep your catalytic converters clean to ensure they continue to work effectively and give you that extra power boost and great exhaust tone.
