The 5.4L BOSS motor in the FG FPV range got an upgrade when compared to the previous BF model, with power being increased to 315kw. The performance of this engine was nevertheless hindered by the restrictive stock exhaust system, and substantial gains can be realised by fitting a Manta Performance exhaust upgrade.
The stock exhaust on these vehicles was a dual exit design out the driver’s side, meaning fitting the Manta exhaust gives the FPV a distinctive “stereo” sound, due to each bank of cylinders exiting out separate sides of the vehicle, rather than both coming out the same side as with the stock exhaust system on the FG XR8.
The cat back systems are ideal if you already have aftermarket headers and cats, or are just looking for improved sound, while the full systems with extractors deliver the best gains, have a throatier sound, and are essential if you are performing other engine modifications such as supercharging.
High-flow straight through mufflers are used to control drone, while still allowing maximum performance, and giving off a deep throaty tone. For the ultimate in power and sound, the 3″ dual system is the only one of its kind available for the Falcon, while the 2.5″ dual generally provides more than enough flow for most applications, and still sounds fantastic.