Så vidt jeg kan se så kan man købe dem flere steder på nettet, men ydelsen variere en del, et sted mener de at en 5,7 L V8 skulle få 5-7 Hk mere (hvilket et rent luftfilter også kunne give)
Fandt følgende beskrivelse:
This module plugs in between the air temperature sensor and its harness connector. It tells the PCM air to provide maximum spark advance (usually a 1 to 2 degree increase). Proper knock sensor and other engine sensor functions are not compromised. SLP suggests the use of premium grade fuel with this modification. A 5 to 7 horsepower increase is possible. Call for the most up to the minute vehicle applications. This item works on stock or modified engines HOWEVER it is NOT for use with custom PCM calibrations with advance spark timing. NOT legal for use on pollution controlled motor vehicles.
Her finder i en uafhængig test (desværre ikke specielt positiv)
www.installuniversity.com/install_univer...slp_atm_9.202000.htm
De slutter af med at skrive at produktet er værdiløst, de mener ligeledes at den handel der foregår på Ebay er røveri ved højlys dag.
