Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
SPDZ1 High-Flow O2 Sensor CEL Fix with Mini Catalytic Converter –
Universal M18 x 1.5
Eliminate those annoying P0420 / P0430 “Catalyst System Efficiency Below Threshold” codes with the SPDZ1 high-flow O2 sensor adapter. Designed with an integrated miniature catalytic converter, this precision-machined fitting helps restore proper exhaust readings when running a high-flow cat, test pipe, or full race exhaust system.
Perfect for 6-cylinder boosted engines and 8-cylinder performance builds, this version ensures a cleaner signal to your ECU while keeping exhaust flow unrestricted for maximum performance. For 4-cylinder boosted or NA 6-cylinder setups, check out our smaller-flow variants.
✅ Removes common CEL codes: P0420 (Bank 1) and P0430 (Bank 2) ✅ Built-in mini catalytic converter to balance performance and emissions ✅ Universal M18 x 1.5 thread fits most O2 sensors and aftermarket exhausts ✅ Machined from high-grade stainless steel for durability and corrosion resistance ✅ Quick bolt-on installation – no tuning required
(Purchase Includes 1 Piece)
Recommended Use: Ideal for vehicles equipped with aftermarket downpipes, test pipes, or catless exhaust systems looking to eliminate the Check Engine Light without compromising performance.
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
