2018 BMW 740i Downpipe: Boost Performance and Sound
Upgrading the downpipe on a 2018 BMW 740i isn’t just about aesthetics—it’s a strategic enhancement that improves exhaust flow and amplifies the car’s signature sound, delivering both power and character.
Optimizing Exhaust Flow and Efficiency
The 2018 BMW 740i downpipe is engineered to reduce exhaust backpressure, allowing the engine to breathe more freely. This leads to improved throttle response and smoother power delivery, ensuring every drive feels more responsive and engaging without compromising reliability.
Enhancing Sound Performance
Beyond function, the downpipe reshapes the exhaust note, delivering a deeper, more assertive tone that matches the 740i’s luxurious presence. The carefully tuned design balances power and polish, making every acceleration feel intentional and satisfying.
Quality Construction and Fitment
Manufactured with precision, this downpipe uses high-grade materials to withstand high temperatures and vibrations. Designed for seamless installation on the 2018 BMW 740i, it maintains factory integrity while boosting performance—ideal for enthusiasts seeking authentic upgrades.
Upgrading the 2018 BMW 740i downpipe combines enhanced performance with a refined auditory signature, elevating both power and appeal. For drivers who value precision and presence behind the wheel, this upgrade delivers a measurable difference—performance, sound, and satisfaction in every drive. Upgrade today and experience the 740i like never before.
The ARM 6" B58 Downpipe takes the title of being the largest catless downpipe available for the B58 platform! The sound coming from your B58 with the 6" section in the ARM B58 Downpipe will astonish you. Even deeper tones, even better sound, and improved turbo spool. The ARM B58 Downpipe is one of the foundational upgrades for giving your B58-powered BMW more power, torque, and sound.
The. VRSF B58 Downpipe Upgrade for your 2016 - 2022 BMW M240i, 340i, 440i, 540i, 740i & 840i & xDrive. Gains from 25.
Give your 2016-2022 BMW 740i a facelift with these Downpipes from us! Perfect fitment and High quality these Downpipes will not disappoint. The CTS Turbo Catless Downpipe BMW B58 is made to maximize exhaust flow for highest power gains. Do not compromise performance and sound with factory parts - unleash your BMW's potential! Designed using the latest in CAD technology; this part is made to fit perfectly in place of your factory downpipe.
Manufactured from T304 stainless. We are proud to introduce our VRSF race & high flow catted downpipe for your B58 M240i, 340i, 440i, 540i, 740i & xDrive variants. These downpipes are.
Find many great new & used options and get the best deals for 2018 BMW 440i B58 OEM Downpipe M240i/340i/440i/540i/740i at the best online prices at eBay! Free shipping for many products! The stock B58 downpipe comes from the factory with a catalyst that severely restricts exhaust flow, causing excessive backpressure with increased boost. Upgrading to the ARM 6" B58 Downpipe unlocks power, improves turbo spool, allows you to safely run stage 2+ tuning, all while improving the sound of your B58.
Punchier Turbo Sound & Serious Pulls for Your BMW B58 Dial up your turbo whistle and feel that instant power surge with the BMW B58 Catless Downpipes 4.5″, made for M240i, 340i, 440i, 540i, 740i, and 840i from 2016 to 2022. The ARM B58 Downpipe is one of the foundational upgrades for giving your B58-powered BMW more power, torque, and sound. The stock B58 downpipe comes from the factory with a catalyst that severely restricts exhaust flow, causing excessive backpressure with increased boost.
Purchase your B58 downpipe for more performance. DCE Parts - B58 Downpipe - F & G Chassis - BMW M140i, M240i, 340i, 440i, 540i, 640i, 740i & XDRIVE - (Slip On Clamp Type - Non-OPF) Through the placement of a bigger downpipe the turbo spools up quicker due to a lower back pressure. The turbo starts to build up pressure at lower speeds.