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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...

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...

We've received and shipped several of the Ford Performance kits to our customers already. They're shipping.

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...

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...

We have a customer who installed the AWE touring edition on his '24 and it sounds awesome. We're going to have a video in the next coming weeks to display the sound profile, but it does not have any drone from the cabin. It's relatively loud for a touring option, too, which I found to be a plus...

Got some more carbon pieces in to test fit on our Dark Horse. Just waiting on the bumper grille inserts to complete the puzzle. These will be listed up on the site shortly.

Got some more carbon pieces in to test fit on our Dark Horse. Just waiting on the bumper grille inserts to complete the puzzle. These will be listed up on the site shortly.

Got some more carbon pieces in to test fit on our Dark Horse. Just waiting on the bumper grille inserts to complete the puzzle. These will be listed up on the site shortly.

I did Gforce outlaw axles on my manual GT and DSS Nemesis axles on my Dark Horse. I know that the stock Dark Horse axles are better than the GT (similar to a GT350 axle). However I don't play games with this stuff and didn't want to risk driving 3 hours to a drag strip with the stock axles just...

Yes. The only difference in the calibrations would be for the transmissions (10R80, MT-82 or TR-3160) and what stage kit was ordered.

Headers always help especially on a forced induction application. They provide more airflow and engine efficiency over the stock manifolds. Do you need them? No. Will you benefit from them? Yes. My manual GT with the Whipple runs Kooks longtubes and a Corsa catback with double H pipe. I do get...

Tunes between the Whipple kit and Ford Performance kits are the same. The only thing that varies in the tune would be the stage 1 to stage 2 as they use different throttle bodies which requires some changes. The Stage 1 tune is top speed limited to 155 mph and will also limit throttle if you add...

Hey Everyone, Happy Thursday! Some new additions to our LP Carbon Fiber line-up are coming for the 2024+ Mustang's, including Carbon Fiber Corner Grille Bezels and License Plate Surround. Stay tuned for availability and updates! Always feel free to reach out to any one of us here at Lethal...

Hey Everyone, Happy Thursday! Some new additions to our LP Carbon Fiber line-up are coming for the 2024+ Mustang's, including Carbon Fiber Corner Grille Bezels and License Plate Surround. Stay tuned for availability and updates! Always feel free to reach out to any one of us here at Lethal...

That I'm unsure of but I've reached out to Steve@UPR and will report back with what he says.

I've got the Stage 2 setup on my manual GT and it's nasty! So far the transmission is holding up without any issues on the 3.6250 pulley. However I'm putting a Calimer Stage 2 in it with a new Mcleod RXT, Viking double adjustable rears and some Kelltrac adjustable struts. Tossing some slicks on...