Relentless Automotive Development Group

01/12/2026

01/01/2026

Cold start on a 2025 RHO running a MagnaFlow Speq exhaust paired with our 4 inch downpipes.

12/31/2025

Airborne, dirty, and pushed hard. Our products are proven the same way we drive.

12/31/2025

The numbers tell the story. Our downpipes deliver real gains. Validated.

12/29/2020

Looking for a welder with many years of experience working with aluminum in various thicknesses. They must know how to thick to thin gage aluminum plates/sheet while achieving proper strength.

04/15/2020

Our 2 core all aluminum Ram 1500 Ecodiesel radiators are almost complete! We should be releasing them by mid-May!! Stay tuned!

01/18/2020

We just released our C8 t-shirt, go on over to our website and pre-order yours today! Order 2 shirts and get 8% off your total!

Pre-Order your shirt $27(3XL is $29) INCLUDES SHIPPING* and TAXES. The shirts will ship out on February 25,2020. Add a second shirt and receive 8% off your order! A design inspired by the next generation 2020 C8 Corvette, the very first and long-awaited mid-engine of its kind. This t-shirt was desig...

01/17/2020

We published our first article on the new C8 Corvette, click on the link and enjoy a little bit reading material!

The New 2020 C8 Corvette: How It’s Changing The Automotive World By Challenging Cars That Are More Than Double Its Price After decades of wild and hopeful speculation, the holy grail of American sports car fantasies is finally within our grasp – a mid-engine Corvette. It has been announced, pres...

01/15/2020

Our new website is now live and now offer free shipping(lower 48) on orders over $49!!! Go ahead and check it out! Let us know what you think!

12/26/2019

It's been quite sometime since we've posted or gave updates. We've been working on webpage setup and still working on the YMM filter. We'll begun to offer free shipping on orders above $49 to the lower 48 states!

11/27/2019

Here are a few Black Friday deals!
20% off Cosmis Racing Wheels and Silver's Suspension using code: BF20
Valid November 27th 1:01am - 2nd of December 11:59pm

*$5 Shipping per wheel to the lower 48 States*

11/26/2019

Black Friday is coming up! Recieve 20% off and $5* shipping per wheel on Cosmis Racing Wheels with PROMO CODE: BF20. Valid November 27th to midnight December 2nd

*$5 shipping to the lower 48 states*