Free shipping
No minimum purchase required.
Upgrade your BMW F30 340i (2015-2019) B58 with the Palenon Performance Valve-Controlled Cat-Back Exhaust, designed for maximum power, aggressive sound, and improved airflow. This high-performance exhaust system enhances throttle response, reduces backpressure, and delivers a deep, sporty exhaust note.
Drops over 60 lbs compared to the stock exhaust while significantly improving performance. Gains of 30+ HP and 25+ TQ when properly tuned, along with enhanced exhaust flow and thrilling exhaust note.
Unlock unparalleled performance with Palenon Performance’s 5-Inch bmw B58 Downpipe, the largest on the market. this b58 downpipe features a smooth transition from 4.5” to 5” to 4” and ultimately to the OEM connection of 3.15”. Unlike other downpipes that quickly neck down to 3” at the flex joint, our design maintains larger diameters throughout, ensuring optimal flow right after the turbo.

When installing catless downpipes, a Check Engine Light (CEL) may appear due to the removal of the OEM catalytic converter. To avoid this, Palenon offers a CEL Delete Kit that includes O2 sensor spacers designed to comply with BMW's emissions parameters. These spacers install into the post-catalyst O2 sensor bungs, effectively removing the CEL without needing a tune.
Purchase Link: CEL Delete Kit
At Palenon Performance, we take immense pride in our Exhaust products and believe they are the ultimate choice for discerning customers. Our commitment to excellence begins with the meticulous selection of top-grade Stainless Steel Piping, ensuring unrivaled strength and durability. Our state-of-the-art manufacturing techniques guarantee precise and consistent parts that elevate vehicle performance to new heights. With a team of highly skilled engineers and designers, we continually innovate and push boundaries to deliver cutting-edge designs that seamlessly integrate with any vehicle. Furthermore, our rigorous testing and unwavering dedication to customer satisfaction make Palenon Performance the trusted brand for superior Exhaust products.
Follow the care, setup, and safety instructions included with the product. Use the item only as intended and keep its packaging for future reference.
Clear delivery expectations, secure checkout, easy returns, and authentic customer feedback help you make an informed purchase.
No minimum purchase required.
Most products ship in 1–3 days.
Eligible items can be returned within 30 days.
Protected payment processing through Shopify.
We encourage customers to share honest product experiences so every shopper can make a more confident decision.
Read customer reviewsMost products ship in 1–3 days. Other items typically ship in 4–7 days, while select electronics may take 8–14 days.
Yes. AicragStore offers free shipping on every order with no minimum purchase required.
Eligible items can be returned within 30 days. Review the return policy for item conditions and instructions.
Checkout uses secure payment processing through Shopify and supported payment providers.
Explore the product from every angle and highlight the details that make it special.
Showcase the materials, finish, and construction that set this product apart.
Point out the practical details created for comfort, style, and everyday use.
Use a close-up image to help customers understand texture, shape, and finish.
Explain the benefit customers can expect from this feature or design choice.
Quick, tracked delivery to your door.
Shop with confidence and return with ease.
Your payment information is protected.