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Good Morning Mustang Owners!! We have a NEW RELEASE here at Lethal Performance. It is no other than Steeda's new cold air intake system! This intake has high-flow tubes, billet mass air meter, and has already been dyno tested to increase power! No tune is required and it has been tested to...

Good Morning Everyone, Happy Monday! We're starting the week off right here at Lethal Performance with an exclusive 15% off MSRP AWE sale! This goes for all exhaust styles and finishes. Ends this Thursday 8/22! Want an idea of the sound these systems add, we got you covered: SHOP NOW | AWE...

Good Morning Everyone, Happy Monday! We're starting the week off right here at Lethal Performance with an exclusive 15% off MSRP AWE sale! This goes for all exhaust styles and finishes. Ends this Thursday 8/22! Want an idea of the sound these systems add, we got you covered: SHOP NOW | AWE...

Hey Everyone, Happy Friday! Foster's supercharger Whine Mod for the 2024 Mustangs are now available here at Lethal Performance. If you're looking to give your Whipple a more aggressive sound, Foster has you covered! FEATURES: -Increases the in-cabin rotor “whine” sound by up to 100% -Drilling...

Hey Everyone, Happy Friday! Foster's supercharger Whine Mod for the 2024 Mustangs are now available here at Lethal Performance. If you're looking to give your Whipple a more aggressive sound, Foster has you covered! FEATURES: -Increases the in-cabin rotor “whine” sound by up to 100% -Drilling...

Hey Everyone! The all new Whipple Superchargers Dual Pump Upgrade Kit & HD Heat Exchangers are here at Lethal Performance! Drastically decrease your IAT Temps and get quicker recovery times with these must-have upgrades for any 2024 Mustang Whipple kit, regardless of whether it’s a Stage 1 or...

Hey Everyone! The all new Whipple Superchargers Dual Pump Upgrade Kit & HD Heat Exchangers are here at Lethal Performance! Drastically decrease your IAT Temps and get quicker recovery times with these must-have upgrades for any 2024 Mustang Whipple kit, regardless of whether it’s a Stage 1 or...

Happy Friday Everyone! The all new Shoemaker Performance AVID Tuning Devices are IN STOCK here at Lethal Performance. The AVID vehicle interface device is an all in one flash/logging WIFI-based tuning device, allowing you to receive new tunes and upload datalogs to the cloud with lightning...

Happy Friday Everyone! The all new Shoemaker Performance AVID Tuning Devices are IN STOCK here at Lethal Performance. The AVID vehicle interface device is an all in one flash/logging WIFI-based tuning device, allowing you to receive new tunes and upload datalogs to the cloud with lightning...

Happy Friday S650 Owners! I'm very excited to announce that Valvetronic has released their S650 exhaust kits. If you didn't get a factory valved system, or you did and just want something different, Valvetronic makes a kit for both cars. This system measures 3.0 inches all the way back to the...

Hey Everyone, Happy Thursday! The Fluidyne sale is still going strong here at Lethal Performance. This includes Radiators, Heat Exchangers, and MORE! Enjoy 20% OFF Fluidyne until 7/31 Check out our line-up below: SHOP NOW | Fluidyne Always feel free to reach out to any one of us here at...

Hey Everyone, Happy Thursday! The Fluidyne sale is still going strong here at Lethal Performance. This includes Radiators, Heat Exchangers, and MORE! Enjoy 20% OFF Fluidyne until 7/31 Check out our line-up below: SHOP NOW | Fluidyne Always feel free to reach out to any one of us here at...

The Roush Launch edition has launched at Lethal Performance! The blower wars are back on with the new Launch Edition kit from Roush! Roush is back with an absolutely awesome kit. Carrying over successful components like the FEAD drive that reduces crank stress and combining them with the Ford...

Whipple has done it again! Team Lethal is exited to announce the release of two new cooling upgrades from Whipple. Whipple already had industry leading cooling, and is pushing it further with a brand new Heavy Duty Race Heat Exchanger and a Dual Intercooler Pump Upgrade! Specs for the HD Race...

Hey, ALL! We are constantly adding to our Lethal Performance Carbon Fiber Styling line. This Lethal Performance Carbon Fiber Spoiler installs in minutes onto your S650 Mustang using simple hand tools (a flathead screwdriver or a body pin removal tool) and requires no modifications to your...

Hey Everyone, Happy Wednesday! All new APR spoilers and front splitters for the 2024 Mustang and Dark Horse are now available here at Lethal Performance! The spoiler comes in two heights, 67" and 71". If you are looking to give your car a new look, and good downforce, UPR has you covered...

Hey Everyone, Happy Wednesday! All new APR spoilers and front splitters for the 2024 Mustang and Dark Horse are now available here at Lethal Performance! The spoiler comes in two heights, 67" and 71". If you are looking to give your car a new look, and good downforce, UPR has you covered...

Hey Everyone, Happy Tuesday! Starting now until 7/5/2024, save 15% on all Morimoto (GTR, etc) lighting at Lethal Performance. This goes for headlights, bulbs, side markers, taillights, etc! No code is needed for this either. All you have to do is add it to your cart! Check out our line-up...

Hey Everyone, Happy Tuesday! Starting now until 7/5/2024, save 15% on all Morimoto (GTR, etc) lighting at Lethal Performance. This goes for headlights, bulbs, side markers, taillights, etc! No code is needed for this either. All you have to do is add it to your cart! Check out our line-up...

Good Morning Everyone! Happy Thursday! Great news! The J&L Oil Separators for the 2024 Mustang GT & Darkhorse running a Whipple Supercharger are now available here at Lethal Performance. This plug n' play system will install in minutes and keep that unwanted oil, fuel, and moisture from...