No need for Porsche sport exhaust (pse) envy with this muffler! This offers weight savings and a far more exotic sound than the pse, all without drone. It is the perfect compromise for you and your loved ones. Rich, deep, turbo motorsport tones with the valves open and soft subtle, completely stock sounds with them closed. Top of the line or range depending on the english and is the best choice for a daily driver. Features: - + 16 crank hp & + 15 crank torque. - weighs 37 lbs. (17 kg) - German v2a - x5crni18-10 - 1.4301 stainless steel for improved durability. - direct bolt on replacement for the factory center muffler. - includes necessary installation hardware. - reduces turbo lag, backpressure and thermal load on the motor. - increased decibels with an exclusive, exotic motorsport sound. - quad laser etched FVD exhaust tips are included - 4.2 (106mm) x 2.8 (71 mm) per side. - made in Germany by m&m exhaust, gmbh - software programming is not necessary. - direct replacement for original exhaust part # 9p1 251 052 optional: you can control the valves with a remote so that they open and close on command. Please add part # beskls0000fb our Brombacheredition 991.2 sport muffler varies greatly from designs that are common in the aftermarket. Our muffler is uniquely made from German motorsport grade lightweight stainless steel, with double perforated sound absorption tubes based on the halbgegenstromprinzip (half counter current principle). The acoustic silencer absorption tubes are made in a trapezoidal pattern and are perforated with varying diameters. This design isolates and dampens the unwanted frequencies that create drone. Perforated tubes also create much less flow restriction than baffle plates at higher gas velocities, and consequently translates into larger performance gains throughout the entire rev range with better throttle response. The resulting sound exhibited is a sonorous factory motorsport sound, with plenty of turbo whistle and gurgling and crackling off throttle. This sound is not a coincidence as our entire Brombacher line of exhausts is manufactured by m&m exhaust, gmbh in Germany. They manufacture a multitude of Porsche motorsport and racing exhausts. Each system is tested comprehensively for flow characteristics / rate, thermal stress, cracking, and longevity. Whether you are looking for the perfect street exhaust or one that can handle abuse at the track, look no further. Not to mention, the FVD brand offers you far more exclusivity than a dealer recommended exhaust or the offerings from most tuners. Stand out at your next track or coffee meet and watch the looks of envy when your friends hear this exhaust. Please note: this muffler is for cars with the standard exhaust with valves (without the Porsche sport exhaust (pse) - options dcha, dch+, 009 and -176 . We recommend ordering with your vin # so that we can make sure which muffler and catalytics you have. It is not c.a.r.b. Certified (california) nor is it TUV approved or epa certified. Picture of the internal design is for reference only. If you would like us to make something like this for an s model, simply contact us we can make something similar for you.