Your 2008 Toyota Tundra 5.7 catalytic converter is an essential element of your truck’s emissions system. By upgrading to the correct converter, you’ll gain more power from your engine while still reducing its carbon footprint.
If your converter is showing signs of wear and tear, or if you have noticed a loss of power or rough engine idle, it’s time for replacement. MagnaFlow offers quality replacement catalytic converters.
HM Grade
Keep your 2008 Toyota Tundra 5.7 running strong with MagnaFlow’s HM Grade Federal/EPA compliant direct-fit catalytic converter. Its patented spun body design, along with included gaskets and hardware, reduces the likelihood of exhaust leakage while also saving you from having to reuse corroded factory parts. While not as good as OEM quality, HM grade offers more performance at lower costs than its higher-end OEM counterpart.

MagnaFlow is proud to offer a selection of HM grade catalytic converters that meet your state’s governmental emission requirements. Take a look at what we have on sale and select your 2008 Toyota Tundra 5.7 for the ideal catalytic converter match! We look forward to helping get your vehicle back on the road! Please reach out with any questions; thank you! Also don’t forget about our other great products like replacement fuel filters – all are available with fast shipping!
OEM Grade
Catalytic converters are essential components of Toyota Tundra’s emission control system, converting harmful exhaust gases into less toxic or harmless forms. They can be found on all kinds of engines such as V8s, inline-fours, and rotary engines alike.
Today’s vehicles produce virtually zero harmful emissions due to advances in engine, electronics and converter technologies. Examples of these innovations include START-STOP, Hybrid drive systems and cylinder de-activation technologies.
These technological advances are advantageous, saving you money on fuel and increasing your vehicle’s mileage. Unfortunately, they’re not perfect and can be damaged due to misfires, too much fuel consumption, or physical trauma such as a rock hitting the unit.

If your original catalytic converter is malfunctioning, it may be time to replace it with a new one. Doing so will restore lost power and make your vehicle run better in general.
Direct-Fit
The Direct-Fit 2008 Toyota Tundra 5.7 Catalytic Converter is a direct replacement part that eliminates the check engine light and meets emissions regulations. Compatible with Base to SR5 trim levels, this part interchanges with OE parts 17450-0S200 and 17450-0S140.
This mandrel-bent tubing product boasts free-flowing mandrel-bent tubing and highly corrosion-resistant stainless steel construction for long service life. A single laser fusion weld reduces the likelihood of a leak, while its compact low mass design enhances thermal efficiency.
Catalytic converters were first required in 1975 and act as emissions controls to reduce harmful gases. Through complex chemistry, these devices transform exhaust fumes into usable energy before they leave the engine and enter the atmosphere.
Catalytic converters are an effective way to reduce vehicle emissions, so it’s essential that you get the right one for your needs. If unsure which type of catalytic converter to purchase, consulting with a mechanic who can assist in selecting the appropriate part for your vehicle is your best bet.
Weld-On
A catalytic converter is an essential element of your vehicle’s exhaust system. It traps harmful gases like nitrogen oxide, sulphur dioxide and carbon monoxide while producing harmless by-products.
A malfunctioning catalytic converter can cause your check engine light to illuminate, reduce fuel economy and even damage your vehicle’s engine. Therefore, it’s critical that you get a high-quality replacement catalytic converter when the time comes for replacement.
The Weld-On 2008 Toyota Tundra 5.7 catalytic converter is a direct fit replacement, eliminating the need to cut or modify your exhaust pipe. Simply slide it into place and tighten its bolts for secure installation.
Welding a catalytic converter isn’t particularly difficult, but it does require special equipment and materials. If you lack the experience required to weld one yourself, consider hiring an experienced professional who can do it for you.