lethal

Happy Halloween #teamlethal fans! Today, we are doing 10% OFF Sitewide Using Code “GHOST” at checkout! *Standard Exclusions Apply, See Site for Details* As always, if you don't see what you're looking for; feel free to reach out if you have any additional questions!

Happy Halloween #teamlethal fans! Today, we are doing 10% OFF Sitewide Using Code “GHOST” at checkout! *Standard Exclusions Apply, See Site for Details* As always, if you don't see what you're looking for; feel free to reach out if you have any additional questions!

The Future of Tuning is here... Introducing the HPTuners MPVI4! The newest generation of MPVI Devices feature: - Faster Transfer Speeds: Dramatically improved wireless transfer speeds for faster, more efficient tuning thanks to the MPVI4's WiFi capability. - High-Speed Standalone Data Logging ...

The Future of Tuning is here... Introducing the HPTuners MPVI4! The newest generation of MPVI Devices feature: - Faster Transfer Speeds: Dramatically improved wireless transfer speeds for faster, more efficient tuning thanks to the MPVI4's WiFi capability. - High-Speed Standalone Data Logging ...

Good Morning, #teamlethal fans! That's right, PrimeDays are back here at Lethal Performance! Right now, save 10% OFF Sitewide using code “PRIME” on checkout. *standard product exclusions* SHOP NOW | PRIME DAYS at Lethal Performance

Good Morning, #teamlethal fans! That's right, PrimeDays are back here at Lethal Performance! Right now, save 10% OFF Sitewide using code “PRIME” on checkout. *standard product exclusions* SHOP NOW | PRIME DAYS at Lethal Performance

Good Morning, #teamlethal Fans! Our Labor Day sales have launched! Right now, you can save 10% SITEWIDE using code ' LABOR ' ! WITH doing 2X Loyalty Points through 9/2 PLUS: 20% off all Lethal Merch & Apparel! Alongside the sitewide sale we have up to 20% off some top brands: MRT...

Good Morning, #teamlethal Fans! Our Labor Day sales have launched! Right now, you can save 10% SITEWIDE using code ' LABOR ' ! WITH doing 2X Loyalty Points through 9/2 PLUS: 20% off all Lethal Merch & Apparel! Alongside the sitewide sale we have up to 20% off some top brands: MRT...

Our HPTuners Lethal Performance RTD4 Devices are here and NOW SHIPPING! Custom Tune your 2024-2025 Mustang GT / Dark Horse, 5.0L F-150, 2.7L Bronco, and more with the new RTD4 tuning device, available with various custom tunes from your favorite tuners, such as Palm Beach Dyno, Lund Racing...

Our HPTuners Lethal Performance RTD4 Devices are here and NOW SHIPPING! Custom Tune your 2024-2025 Mustang GT / Dark Horse, 5.0L F-150, 2.7L Bronco, and more with the new RTD4 tuning device, available with various custom tunes from your favorite tuners, such as Palm Beach Dyno, Lund Racing...

Great news for 2025 Bronco 2.7L Owners! Right now, 2025 model year for Non-California vehicles ONLY can enjoy the benefits of the enhanced performance with your 2.7L engine in your 2021-2025 Bronco. Features: Improved throttle response throughout RPM range Optimized shift schedule Peak torque...

Great news for 2025 Bronco 2.7L Owners! Right now, 2025 model year for Non-California vehicles ONLY can enjoy the benefits of the enhanced performance with your 2.7L engine in your 2021-2025 Bronco. Features: Improved throttle response throughout RPM range Optimized shift schedule Peak torque...

Great news for 2025 Bronco 2.7L Owners! Right now, 2025 model year for Non-California vehicles ONLY can enjoy the benefits of the enhanced performance with your 2.7L engine in your 2021-2025 Bronco. Features: Improved throttle response throughout RPM range Optimized shift schedule Peak torque...

Happy Monday #teamlethal fans! Our 4th of July is kicking off TODAY with 10% off sitewide using code “FIREWORKS” at checkout* AND we have up to 20% off select brands including Corsa Performance, CVFabrication, MRT Performance, Stainless Works, and MORE! PLUS, you earn 2X Lethal Loyalty Points...

Happy Monday #teamlethal fans! Our 4th of July is kicking off TODAY with 10% off sitewide using code “FIREWORKS” at checkout* AND we have up to 20% off select brands including Corsa Performance, CVFabrication, MRT Performance, Stainless Works, and MORE! PLUS, you earn 2X Lethal Loyalty Points...

Good Morning, #teamlethal Fans! We've got sales on sales on sales going and we can't forget about the Ford Performance ProCal device and tune! Enhance the performance of your 2.3L or 2.7L engine in your 2021-2024 Bronco. The Ford Performance engineered and dyno tested calibration delivers the...

Good Morning, #teamlethal Fans! We've got sales on sales on sales going and we can't forget about the Ford Performance ProCal device and tune! Enhance the performance of your 2.3L or 2.7L engine in your 2021-2024 Bronco. The Ford Performance engineered and dyno tested calibration delivers the...

Good Morning, #teamlethal FANS!! Not only do we have ALOT of your favorite brands on sale for our 20th Anniversary but we also are throwing a sitewide sale for Father's Day! Right now, through the 16th; save 10% with code ' DAD ' at checkout. Don't forget to checkout all the details of our...

Good Morning, #teamlethal FANS!! Not only do we have ALOT of your favorite brands on sale for our 20th Anniversary but we also are throwing a sitewide sale for Father's Day! Right now, through the 16th; save 10% with code ' DAD ' at checkout. Don't forget to checkout all the details of our...

Celebrate 20 Years of Lethal Performance with BIG SAVINGS on our favorite brands, like Mcleod Racing, SPE Motorsports, Thermal R&D, and more! We're just kicking off our 20th Anniversary Sale, where we're bringing the heat with some of the biggest sales of the year on the brands you want. Help...