PORSCHE 996 BYPASS VALVECan't find what you need? Try browsing the Accessories or Exploded Diagrams!Filtered by: 911 1989-94 (includes uncategorized and accessory items)
99311033751 A diverter valve uses vacuum actuation to re-circulate excess boost pressure into the turbo inlet pipe, allowing for quicker boost recovery. If the inner diaphragm is cracked or torn, boost pressure is lost and performance is compromised. Genuine kayser diverter valve sourced from Porsche ag in Germany to ensure quality, reliability and precise fitment. We recommend upgraded diverter valves for modified cars running more than .7 bar (10.29 psi). Please purchase part # FVD123212 if you have a modified car. Sold individually. View/Change Diagram
From $59.95
Make a selection BES99710066SK
$6,657.20
Make a selection 21011124OK Catalytic bypass pipe "u-torque" design, manufactured by m&m in Germany. The u-torque design compensates for the backpressure loss while running without cats. The design minimizes the loss of low end torque and adds 10-15 ft-lbs of torque in the mid and top range of the rpms. Why settle for the traditional cross over cat design when you can add torque in the mid-range and minimize the loss of torque down low where the 997's need it most! Ecu software is necessary !
$1,094.50
Make a selection BES99115000SKR + 11 hp & + 10 tq gain. - 2 3/4 tubing (70mm). - 18 lb. (8.5 kg)weight savings over OEM center muffler. - German v2a - x5crni18-10 - 1.4301 stainless steel for improved durability. - absolutely no drone in the cabin. - does not interfere with emissions and will not trigger the check engine light. - ecu programming (software) is not necessary. - replaces OEM center muffler and connects to OEM header and OEM side mufflers and OEM tips. Please note: this muffler is a direct replacement the 991 Carrera s (3.8l - us model) which comes standard with valves. It is also a direct replacement for the Porsche sport exhaust option. This center muffler bypass for the 991 is one of the most technically advanced for Porsche t...(choose a part on the right to read more)
$3,713.60
Make a selection BES99729000S1 For 997-2 with OEM or valved Porsche sport exhaust (pse). Facts: - equal length headers with long tube design - cat bypass - 2 3/4 tubing (70mm) - made in Germany power: - 997.2 (3,6l) = + 20 crank hp (15 kw) & + 15 crank torque (20 nm) - 997.2s (3,8l) = + 23 crank hp (18kw) & 22 crank torque (30nm) - with FVD flashclient software = + 37 crank hp (28kw) & + 30 crank torque (40 nm) tech tip: dme programming neccessary!
$3,439.70
Make a selection BBI9912020001 The bbi autosport Porsche 991 GT3 exhaust center section is a direct replacement for the secondary center muffler. For those who desire a slightly milder exhaust tune, this piece is a great alternative to our cup-style side muffler bypass pipes. By retaining stock side mufflers and valves, the factory "sports button" feature is kept to conveniently switch back and forth between the aggressive "sport" mode during spirited driving sessions and the quieter, more civil "non-sport" mode for minimal noise on the highway.
$2,100.00
Make a selection FVD98010002 Kit includes: 2 x sport motronic dme (ecu) exchange 2 x sport airfilter 1 x sport exhaust system genuine: engine - v10 cylinder capacity - 5733ccm compression ratio - 12,0:1 max. Power - 450kw (612hp) @ 8000rpm max. Torque - 590nm @ 5750rpm max. Speed - 330km/h max. Rpm - 8400rpm acceleration 0-100km/h - 3.9s tuning: max. Power - 496kw (675hp) @ 8000rpm max. Torque - 670nm (495 lbf ft) @ 6000rpm max. Speed - 345km/h max. Rpm - 8600rpm acceleration 0-100km/h - 3.7s FVD dme / ecu programming philosophy: for 27 + years, FVD-Brombacherhas been setting the standard for Porsche engine building and tuning in Germany. Our deep understanding of the flat 6 Porsche engine naturally led to our engine management software. ...(choose a part on the right to read more)
$17,032.10
Make a selection BES99104060S + 11 hp & + 10 tq gain. - 2 3/4 tubing (70mm). - weighs 35.2 lbs (16 kgs) - German v2a - x5crni18-10 - 1.4301 stainless steel for improved durability. - does not interfere with emissions and will not trigger the check engine light. - includes block off plates & caps to use with either the OEM center muffler or an aftermarket center muffler bypass (with 2 inlets). - replaces the OEM valved side mufflers. Connects to OEM header and catalytic flange and connects to OEM center muffler or bypass. - can be used with bes99107060s1 for an even more aggressive growl. * please note - you will no longer have use of your valves ! Our 991 GT3 side muffler replacements are vastly different than the baffle plated mufflers stu...(choose a part on the right to read more)
$1,788.60
Make a selection BBI9912020006 The bbi autosport Porsche 991 GT3 exhaust center section is a direct replacement for the secondary center muffler. For those who desire a slightly milder exhaust tune, this piece is a great alternative to our cup-style side muffler bypass pipes. By retaining stock side mufflers and valves, the factory "sports button" feature is kept to conveniently switch back and forth between the aggressive "sport" mode during spirited driving sessions and the quieter, more civil "non-sport" mode for minimal noise on the highway.
$2,100.00
Make a selection BES95B05040SK + 15 hp & + 18 tq gain. - 2.5 tubing (63.5mm). - 4 x 4 (101mm) round tips. - 8.5 lb. Weight savings over OEM mufflers. - German v2a - x5crni18-10 - 1.4301 stainless steel for improved durability. - does not interfere with emissions and will not trigger the check engine light. - ecu programming (software) is not necessary. - electronic valve controller must be removed from the OEM unit and added to our muffler. - made in Germany. Please note: this muffler is a direct replacement the macan turbo (95b) model which comes with a single electronic exhaust valve on the passenger side. This is the very 1st aftermarket muffler for the macan 95b turbo that includes a valve like the factory system. This allows our system ...(choose a part on the right to read more)
$4,544.10
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