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SAAB 9000 TURBOCHARGERS & RELATED 1986-1998

APC BOX PERFORMANCE UPGRADE SAAB 1986–1998
APPLICATION FITS PART # PRICE Hover to enlarge!
9000 1986–1989 Apc Box See note: All 900PCM Not available Apc Box 900PCM AFT
9000 1986–1989 Fuel Pressure Regulator 3.0 bar All 7564123 $79.00 Buy Now Fuel Pressure Regulator 7564123 OES
9000 1986–1989 Fuel Pressure Regulator 2.8 bar All 7568041 $74.00 Buy Now
9000 1988–1988 Fuel Pressure Regulator Turbo 7564131 $82.89 Buy Now
NOTE: This upgrade will usually increase an average Turbo 900 to about 204 horsepower but completely depends on the shape of the vehicle and whether or not you add the 2.8 or 3.0 bar fuel pressure regulator along with the fuel control module. The 2.8 bar fuel pressure regulator keeps the engine from running excessively rich but aids in the performance of the vehicle. The 3.0 fuel pressure regulator also aids in performance as well but has shown signs of running excessively rich in very busy stop and go driving. Keep in mind that the objective of the 2.8 and 3.0 fuel pressure regulator is to decrease the combustion chamber temperature by adding more fuel in an attempt to prevent detonation. Detonation is absolutely dangerous to a turbo engine. You SHOULD NOT purchase this product if your not mechanically inclined. Damage can occur if you do not keep an eye on how this product is used.
FAQ: Engine Performance Modifications

INTERCOOLER & HOSES SAAB 1986–1998
APPLICATION POSITION PART # PRICE Hover to enlarge!
9000 1986–1990 Intercooler For turbo   7559776 Not available Intercooler 7559776 AFT
9000 1991–1998 Intercooler For turbo   4396818 Not available
9000 1986–1987 Intercooler Hose Lower , straight hose for cars with manual transmission Driver N/A 22122 Not available Intercooler Hose N/A 22122 OES
9000 1986–1987 Intercooler Hose one closest to the fender   9387697 $78.55 Buy Now
9000 1988–1990 Intercooler Hose Lower , straight hose for cars with manual transmission Driver 9390956 $87.30 Buy Now
9000 1986–1989 Intercooler Hose Lower hose Passenger 9387689 $119.31 Buy Now Intercooler Hose 9387689 OES
9000 1990–1998 Intercooler Hose Lower hose Passenger 4157046 $70.60 Buy Now
9000 1986–1990 Intercooler Hose Upper hose from turbo to passenger side of intercooler pipe   9387671 $116.40 Buy Now Intercooler Hose 9387671 OES
9000 1991–1998 Intercooler Hose Upper hose from turbo to passenger side of intercooler pipe   4157020 $136.22 Buy Now

KNOCK SENSOR SAAB 1986–1998
APPLICATION FITS PART # PRICE Hover to enlarge!
9000 1987–1990 Knock Sensor 2.0NT, 2.0T 7568801 $24.89 Buy Now Knock Sensor 7568801 OES
9000 1994–1995 Knock Sensor All 90511177 $65.00 Buy Now
9000 1996–1998 Knock Sensor motronic system All 4300729 $113.00 Buy Now
9000 1992–1998 Knock Sensor Cars w/direct ignition All 7585755 $121.30 Buy Now Knock Sensor 7585755 OES
NOTE: The Knock sensor detects engine knock or detonation in the cylinders. When the sensor detects the knock the engine timing is retarded to cool down the combustion chamber to eliminate the knock

TURBO BYPASS VALVE SAAB 1986–1998
APPLICATION FITS PART # PRICE Hover to enlarge!
9000 1986–1998 Bypass Valve Turbo 4441895 $39.00 Buy Now Bypass Valve 4441895 AFT
9000 1986–1998 Bypass Valve Performance model: see **note: fits all turbo models and has lifetime warranty spring is adjustable Turbo 990609100 $89.00 Buy Now Bypass Valve 990609100 AFT
Note: Bosch now shows these valves as superceeding to the same numbers. The cheaper version valve is now classified as the Heavy Duty version. If you looking for a valve to increase the boost going into the engine because the spring rate is adjustable then buy the stainless valve not the plastic one.
FAQ: Stalling When Coming to a stop
FAQ: Turbo Bypass Valve Failure
FAQ: Turbo Bypass Valve Hooting Noise Bulletin
FAQ: Turbo Bypass Valve Location
FAQ: Turbo Bypass Valve Replacement
FAQ: Turbo Bypass Valve Testing for Failures

TURBO OVER-PRESSURE SENSOR SAAB 1986–1998
APPLICATION FITS PART # PRICE Hover to enlarge!
9000 1994–1998 Over-pressure Sensor Turbo 4692802 $57.00 Buy Now Over-pressure Sensor 4692802 OES
9000 1990–1993 Overpressure Switch Turbo 8594632 Backordered Overpressure Switch 8594632 OES
NOTE: A faulty overpressure switch will cause the APC solenoid to click and will go away when applying the brakes!
FAQ: Clicking Noise disappears when pressing brakes