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Our B58 Catted Downpipe design incorporates a 6" high-flow 200 cell ceramic catalytic converter
Given the rarity of these OEM Kits in the wild
The result is a gain of up to 14whp in the mid to upper RPM range when increasing boost above OEM levels
In addition to making sure you have a reliable means of transporting the charge air from the turbo to the throttle body
Please bear in mind that professional installation is strongly recommended
BMW F10 / F11 5-Series 3D Design 4 Tip M-Sport Carbon Fiber Rear Diffuser Maintenance Our B58 Catted Downpipe designFounded in 1998 with a focus on suspension components, 3D Design is renowned for their line of BMW aero parts and accessories. From inception, 3D Design has worked diligently to expand their product line and with great success has created a wide range of parts and accessories for the BMW enthusiast. 2012 marked the expansion of their lifestyle accessories and interior components as well as the introduction of suspension to the export markets. 3D
