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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...

Hey there! I'm not sure either path is the "wrong" one. They both can be in play on their own. I typically do recommend people to do the supporting mods first - i.e suspension (even if just cradle lockouts/springs), wheels and/or tires, etc. It also gives you more of a feel of the progression...

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...

Absolutely do. Got you!

Good afternoon, 1. Any aftermarket header with or without cats may throw a code. 2. There should be no rattles when installed properly, these are built on a jig and are engineered to clear the steering column. 3. While I have never seen Kooks headers twist or warp, even if they did, all...

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...

Thanks for your order! We really appreciate it. Looks like Monday is the day it will be delivered. For the install it really isn't too difficult. Just make sure to take your time and follow the instructions on how to measure and cut the axle pipes. Here's a link to the instructions which...

The initial rpm hike on start up will be drastically louder than stock, even in quiet mode. The WOT pulls, as you mentioned, will be significantly louder, too. There's some addition of rasp through the deletion of the resonators, but I personally find it to be enjoyable. We traditionally go...

Gloss carbon only at this time.

More Carbon Fiber goodies from Lethal Performance! SPECIAL PRE-ORDER PRICE FOUND IN THE LINK BELOW: Lethal Performance Performance Pack Style Carbon Fiber Spoiler (2024+ Mustang GT / Dark Horse / Ecoboost) NOTE : PRE-ORDER ONLY - Expected to ship in August of 2024

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...

Personally, active exhaust is a huge plus, but that's entirely subjective. I enjoyed the ability to start the car in quiet mode and felt my longer highway drives were more enjoyable without the undertone of drone. Exhaust is so up to the end users taste that it's tough to give anything other my...

If it was installed correctly and the intercooler system is flowing how it should you can rip on it right away. There's no break in period needed. Install and full send!!!

We've been beating our manual GT up for quite sometime with the Stage 2 Whipple kit and 3.50" pulley. Last time the car was on the dyno with some octane booster it made 833rwhp. It's been to the track once and handled everything just fine. We run the Gforce Outlaw axles on that car along with a...

Hey Everyone! Next in line to join the 4th of July Sales here at Lethal Performance is Fluidyne! From now until 7/31 | Fluidyne | 20% OFF This includes Radiators, Heat Exchangers, and MORE! Check out our line-up below: SHOP NOW | Fluidyne For all of our 4th of July SALES click HERE! Always...

Hey Everyone! Next in line to join the 4th of July Sales here at Lethal Performance is Fluidyne! From now until 7/31 | Fluidyne | 20% OFF This includes Radiators, Heat Exchangers, and MORE! Check out our line-up below: SHOP NOW | Fluidyne For all of our 4th of July SALES click HERE! Always...

Another ONE! Starting today 7/1 - 7/7 | SCT Performance is 20% OFF! This included the BDX, X4, LiveWire, and More! No code necessary, just add to your cart and enjoy the SAVINGS. Check out our line-up below: SHOP NOW | SCT Performance Check out all the current SALES Here! Always feel free...