ApexBuilt® B58 400 Cell High-Flow Catted Downpipe – BMW/GR Supra (B58/B58TU, 2016-2025)
$699.99
$1,199.99
On Sale from $699.99
ApexBuilt® High-Flow Catted Downpipes for BMW B58 engines deliver exceptional performance and quality...
• Industry-leading build quality ensures durability and reliability.
• Perfect fitment is guaranteed for a hassle-free installation.
• Experience drastically improved throttle response, quicker turbo spool, and an aggressive exhaust note compared to OEM systems.
• Equipped with EURO5-spec, 400 cell catalysts
• Enjoy estimated gains of 15+ wheel horsepower and 25+ TQ on vehicles that are not tuned.
• When paired with an aftermarket ECU tune, expect impressive gains of 30+ HP and 40+ TQ over stock power levels.
• Crafted from TIG-welded T304 stainless steel, each downpipe is meticulously assembled by hand in Florida.
• Backed by a lifetime structural warranty for your peace of mind.
PLEASE NOTE:
These downpipes do not use EPA-compliant GESI catalysts. As a cost-effective alternative to our GESI catted variant, these downpipes instead utilize three-way, EURO5 rated, 400-cell catalysts.
We cannot guarantee catalyst inefficiency related codes (CEL) will not be present after install.
These parts are designed for OFF ROAD / RACE USE ONLY. We recommend running a tune on your vehicle for optimal results.
FAQ
Fitment details & applicable part numbers
Replaces OEM Part Number(s):
BMW/Toyota
Fits these vehicles:
Fitment data provided by RealOEM
