Unleash Peak Performance & Aggressive Sound from Your B58-Powered Machine
Take your BMW or Supra to the next level with the MODIFIED M Catless Downpipe—designed specifically for the B58 platform. Eliminate the restrictive factory catalytic converter and unlock maximum horsepower, lightning-fast turbo spool, and a raw, motorsport-inspired exhaust note.
Whether you're tuned or stock, this downpipe delivers serious gains in both power and sound.
🔥 Performance-Driven Features:
✅ Proven Power Gains – Dyno-tested to increase horsepower and torque across the RPM band
✅ Catless Design – Enables unrestricted exhaust flow for faster turbo response
✅ Aggressive Exhaust Note – Deep, raw sound that transforms your driving experience
✅ Direct Bolt-On Fit – No cutting, welding, or modification needed
✅ Premium 304 Stainless Steel – High-temp resistant and corrosion-resistant build
✅ Precision Engineering – CNC-machined flanges & TIG-welded construction ensure durability and perfect fitment
🚗 Compatible Vehicles:
BMW 340i (F30) – 2016–2018
BMW M240i – G42, F22/F23
BMW M340i – G20/G21
BMW M440i – G22/G23
A90/A91 Toyota GR Supra 3.0T – B58 engine
⚙️ Recommended For:
Tuned or stock B58 builds
Enthusiasts seeking maximum flow, sound, and performance
Drivers looking to reduce turbo lag and sharpen throttle response
🛠️ Pro install & tuning recommended for optimal results
📦 In Stock & Ready to Ship