IF YOU SEE "IMAGE COMING SOON" AND WANT TO FEATURE YOUR CAR ON OUR WEBSITE, PLEASE EMAIL LIZZIE@RNJPERFORMANCE.COM TO SUBMIT YOUR PHOTOS. EVEN IF YOUR PHOTOS DON’T MAKE IT TO THE WEBSITE, WE’LL BE SHARING THEM ON OUR INSTAGRAM @RNJPERFORMANCE

Top Quality Products

Top Quality Products

At RNJ Performance, quality drives everything we do. We’re committed to delivering premium products that don’t just meet standards—they set them. Every part we bring to you is crafted with durability, precision, and performance in mind, using only the best materials like 304 stainless steel. This dedication results in products that not only fit seamlessly but enhance your vehicle’s potential.

Built to Last: 304 Stainless Steel Craftsmanship

Our downpipes and headers are made from 304 stainless steel for both piping and flanges, providing resistance to rust and the intense heat generated during high-performance driving. These materials aren’t just about longevity; they’re also about ensuring your car performs at its best, mile after mile.

Key Products for Performance Enthusiasts

Whether you drive a Ford Focus ST or an Alfa Romeo Giulia/Stelvio, our catless downpipes are designed to give your vehicle a powerful boost. Both downpipes are crafted with 304 stainless steel, allowing for improved exhaust flow and a robust increase in horsepower. The Focus ST downpipe enhances exhaust efficiency for greater power and a more aggressive tone, while our Alfa Romeo downpipe is precision-designed to bring out the best in both the Giulia and Stelvio.

For Honda Prelude (1997-2001) and Honda Accord (1994-1997, 1990-1993, 1998-2002) enthusiasts, our headers are crafted to deliver superior flow, boosting engine efficiency and adding horsepower you can feel. These headers, with direct bolt-on fitment, make it easy to elevate your Honda’s performance without complicated modifications.

Looking to upgrade your Nissan 370Z or WRX? Our headers and test pipes are built to handle the demands of high-performance vehicles. The 370Z headers bring out that signature sound, while the WRX downpipes and headers enhance power delivery and torque. Each product is carefully designed for straightforward installation and reliable durability.

Why Choose RNJ Performance?

RNJ Performance parts are built to exceed industry standards, providing reliable, durable upgrades for enthusiasts who demand more from their vehicles. Every product is crafted to enhance performance and withstand the challenges of high-powered driving, ensuring consistent results on the road or track.

With RNJ Performance, you’re choosing parts that deliver quality, power, and a driving experience that brings out the best in your car.

Contact & More Information

  • Email Contact

    For the quickest and most efficient way to get in touch with us, we recommend using email. Simply utilize the email address provided below to reach out to us, and we'll be happy to assist you with any questions or concerns you may have.

    info@RNJPerformance.com
  • Phone Contact

    Our phone lines are not actively monitored, and there may not always be someone available to answer. We will return calls only to those who leave a voicemail. For the quickest response and communication, please email us.

    (406) 223-3674
  • Store Address

    We will soon be opening our doors to the public, allowing customers to visit and see our products in person. Stay tuned for more information on our store opening by checking our updates on X. We are currently located In Livingston, Montana.