Unlock the full potential of your BMW B58 Gen 2 engine with this Catless Downpipe, engineered to maximize exhaust flow, improve turbo response, and deliver significant performance gains. By eliminating the restrictive factory catalytic converter, this downpipe allows exhaust gases to flow more efficiently, resulting in faster turbo spool, increased horsepower and torque, and a deeper, more aggressive exhaust note.
Constructed from high-grade T304 stainless steel, this downpipe is built to withstand extreme temperatures and high boost pressures while providing exceptional durability and corrosion resistance. Precision-engineered for OEM-style fitment, it installs directly to the factory turbocharger, making it an essential upgrade for stock or tuned B58 Gen 2 vehicles.
Whether you’re building a daily driver or a high-performance street car, this downpipe is the perfect foundation for unlocking your BMW’s true potential.
Features:
🔥 Catless Design – Maximum exhaust flow and performance
🚀 Faster Turbo Spool – Improved throttle response and acceleration
🔊 Aggressive Exhaust Tone – Deeper, louder, motorsport-inspired sound
💪 T304 Stainless Steel Construction – Heat and corrosion resistant
⚙️ Precision CNC Welded – OEM-style fitment and leak-free performance
🔧 Direct Bolt-On Installation – Uses factory mounting locations
🏁 Perfect for Tuned Vehicles – Ideal for Stage 2 and higher power builds
Compatible Models (B58 Gen 2):
BMW M140i (F20/F21 LCI) BMW M240i (F22/F23) BMW 340i (F30/F31/F34) BMW 440i (F32/F33/F36) BMW 540i (G30/G31) BMW 640i GT (G32) BMW 740i (G11/G12) BMW X3 M40i (G01) BMW X4 M40i (G02) Toyota GR Supra 3.0 (A90)(Early B58 Gen 2 models)
(Please verify engine generation before purchasing.)
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Important Notes:
❌ For off-road and track use only
🚨 A check engine light may occur without proper ECU tuning
🧠 An ECU tune is recommended to maximize performance and prevent fault codes
