Ford Falcon GT FG 5.4L Boss Cat Back System with Duel Rear Muffler
PacemakerRRP$2360.21Ford Falcon GT FG 5.4L Boss Cat Back System with Duel Rear Muffler and Quad Tip Outlet.
View partPP4007-04
Ford Falcon GT FG 5.4L Boss Cat Back System - No Centre Muffler - with Duel Rear Muffler
Ford Falcon GT FG 5.4L Boss Cat Back System - No Centre Muffler - with Duel Rear Muffler and Quad Tip Outlet (SKU: PP4007-04), $2132.01
BrandPacemaker
Category: Mufflers and resonators
RRP $2132.01 AUD
Confirmed on orderAfterpay, Zip Pay & Zip Money available
Part specs
- SKU
- PP4007-04
- Supplier
- Pacemaker
- Category
- Mufflers and resonators
- Vehicle fitment
- Ford FG FG X
- Stock status
- Confirmed on order
The Pacemaker PP4007-04 splits the difference for the Ford Falcon GT FG (5.4L Boss): it deletes the centre muffler for a freer mid-section but keeps dual rear mufflers and a quad-tip outlet, so it's louder than stock while still carrying rear silencing.
Why delete the centre muffler but keep the rear pair?
This layout takes the damping stage out of the middle of the cat-back to open the note, then leans on twin rear mufflers to keep the GT civil enough to live with. The quad-tip outlet finishes it. It sits between a fully silenced build and an outright loud one — more voice than stock, more manners than a stripped tailpipe.
Where does a cat-back sit in the system?
A cat-back is the run from behind the catalytic converters to the tips: mid-pipes, mufflers and tailpipes. It's the part changed to tune flow and sound on a road car while leaving the converters and engine-side emissions hardware untouched.
Will it suit my Falcon GT FG?
The PP4007-04 is listed to fit the Ford Falcon GT FG with the 5.4L Boss V8. Falcon FG specifications differ across the line, so send your build to Oak Flats Muffler Men and we'll confirm the fitment before you order.
What does fitting involve in the Illawarra?
Our Oak Flats workshop fits this system from the converter flanges back, routing the centre-delete mid-pipe, hanging the two rear mufflers and squaring up the quad tips in the valance. We check tank and subframe clearance and set tip sit before final tightening. Compliance specifics aren't published with the part — confirm registration requirements with us when booking.
Stocked and fitted by Oak Flats Muffler Men, the Illawarra exhaust and 4x4 specialist in Oak Flats, NSW.
Common questions
- Does the PP4007-04 still have rear silencing?
- Yes — it deletes only the centre muffler and retains twin rear mufflers, so it's louder than stock but not fully straight-through.
- What's the outlet style?
- A quad-tip outlet fed by the dual rear mufflers.
Fitment support across the Illawarra
Fitment checks near you across 18 Illawarra suburbs, from Oak Flats and Shellharbour to Wollongong and Kiama.Show nearby fitment areasCollapse section
Oak Flats Muffler Men can check this part against supplier specs, part number, image, RRP and vehicle details for customers around Oak Flats, Shellharbour, Wollongong, Dapto, Albion Park, Kiama and the northern suburbs.
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View partBook the right exhaust job without guessing.
Send the vehicle make, model, year, engine, current issue, desired sound or performance goal, and clear photos of the existing exhaust where available.