Flow-focused exhaust path
Large-diameter tubing, smooth bends, and a flex section reduce restriction versus the factory exhaust path.
Large-diameter tubing, smooth bends, and a flex section reduce restriction versus the factory exhaust path.
High-flow catted setup. Review local emissions requirements and product notes before street use.
Designed to retain OEM-style fitment without cutting or welding on supported applications.
Downpipes can affect emissions readiness, sound level, and calibration needs. Review the product description before ordering.
BMW F80/F82/F83/F87C M2C / M3 / M4 400 Cell Catted Downpipes from Valvetronic Designs is a BMW-focused performance exhaust product available through BMD Performance. This listing is set up from Valvetronic's current public dealer catalog data with source pricing, variants, and product imagery.
Product details
Confirm final fitment, material, tip selection, and emissions requirements before ordering. Some exhaust and downpipe configurations may be intended for off-road or competition use only depending on local laws.
Built for listed BMW B58 applications and Toyota Supra. Coverage includes M240i, 340i, 440i, 540i, 740i, X3/X4 M40, X5 40i, X7 40i, Z4 M40i, and Supra where listed.
Confirm supporting hardware and calibration requirements before installation.
Orders ship with tracked delivery and insurance coverage options at checkout.
Unopened items may be returned inside the stated return window per policy terms.
Enter ZIP to preview delivery window. Final rates shown at checkout.
Checkout review
Confirm fitment, quantities, and order notes before checkout.
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