Fabspeed Supersport X-Pipe Valvetronic Exhaust System for BMW G8X M3 / M4 

Fabspeed Supersport X-Pipe Valvetronic Exhaust System for BMW G8X M3 / M4

Achieving an aggressive and sharp BMW sound without engine warnings or in-cabin drone, this exhaust transforms the M3 and M4 into true sports cars, endowed with an authentic sound profile. It enhances the turbo spool noise upon throttle release, and with vigorous acceleration, the gritty, iconic BMW straight-six sound fills the cabin. This modification elevates the driving experience by adding more pops and bangs on downshifts and emitting a throaty rumble at idle.

Power

• Tested on an in-house DynoJet, the system has demonstrated maximum gains of 25ft/lbs of torque at 3,300rpm and 22whp at 5,500rpm, equivalent to 26 crank horsepower. The dyno graph evidences that these power enhancements are distributed evenly across the entire power band.

Features

• Adds an impressive 22whp and 25ft/lbs
• Saves 8lbs (3.6kgs) compared to the factory system
• Two investment cast “X” sections for increased exhaust scavenging, resulting in a throaty exhaust note
• Constructed from CNC mandrel-bent 14-16 gauge T304L stainless steel
• Laser scanned and CAD designed for perfect fitment using Ametek Handyscan 700
• Includes deluxe quad-style tips in your choice of finish
• Uses aerospace quality Helical Limited exhaust valves imported from the U.K.
• Retains factory valve functionality for “plug and play” installation
• Simple bolt-on installation, no cutting or welding required
• All Fabspeed performance products are backed by the Fabspeed lifetime warranty

Applications

• BMW M3: G80 (2020+) – 3.0L TT I6 S58
• BMW M4: G82 (2020+) – 3.0L TT I6 S58

Notes

• All Fabspeed products are expected to ship within one week of order, though timelines are often much quicker
• Minor cutting at factory exhaust breakpoint required to install (reference dimple locations on OEM)
• Exhaust system is designed to fit competition models, AWD or RWD variants

About Fabspeed

Fabspeed Motorsport is situated in Fort Washington, Pennsylvania, within the United States of America. Their extensive 26,000 sqft. facility serves as a hub for various car clubs, including Porsche Club of America, Ferrari, McLaren, Lamborghini, and more. The company is renowned for its comprehensive approach to product development. They handle the entire process, from design and engineering to dyno testing, street trials, and racing assessments, ensuring the quality and performance of every item. Fabspeed also collaborates closely with race engine builders and tuners hailing from Italy, Germany, and the United States, resulting in the creation of the Ultimate Performance parts. To cater to their passionate global audience, Fabspeed meticulously crafts systems using aerospace-grade austenitic stainless steel, titanium, and carbon fiber materials, setting a standard for excellence in the industry.