ApexBuilt® B58 GESI High-Flow Catted Downpipe – BMW/GR Supra (B58/B58TU, 2016-2025)

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 GESI 400 Cell cats, achieving 49 state emissions compliance.• Enjoy estimated gains of 20-25+ wheel horsepower and 30-35+ TQ on vehicles that are not tuned.• When paired with an aftermarket ECU tune, expect impressive gains of 45+ HP and 50+ 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 warranty for your peace of mind. PLEASE NOTE: These parts are designed for OFF ROAD / RACE USE ONLY. We recommend running a tune on your vehicle for optimal results. As of June 6, 2024 – estimated production lead time of 6-8 weeks if product is not in stock