If you want the short version, a carbon fibre coil cover is worth it on an FG Falcon when you want the engine bay to finally look the way the rest of the car deserves, and it is not worth it if you are chasing power. It is a dress-up part, not a performance part. I am Riley Baginski, founder of RB Innovations, and the carbon fibre coil cover is one of the parts I get asked about most on the Barra, so here is the honest rundown before you spend the money.
What a carbon fibre coil cover actually does
On the Barra straight six, the factory coil cover is the big plastic panel sitting across the top of the engine, over the coil packs. A carbon fibre coil cover does the same job, it just swaps that plastic for real carbon. That is the whole story. It does not add power, it does not change airflow, and it does not unlock any hidden noise.
What it does do is change the first thing anyone sees when you pop the bonnet. The coil cover is the largest flat surface in a Barra bay, so it is the single panel with the biggest visual payoff. If you have tidied up the rest of the car and the engine bay still looks stock, this is usually the part that pulls the whole thing together.
Are carbon fibre coil covers worth it on a Barra?
Here is my honest take. A carbon fibre coil cover is worth it if you care about the engine bay, you are building something tidy, or you want one clean focal point under the bonnet without spending big. For the money, it is the most visible single change you can make in a Barra bay. Our V2 dry carbon coil cover sits at $550, and it is the part most FG owners start their bay with.
It is not worth it if you are after performance, or if the budget is tight and the car runs fine as it is. I would rather tell you that now than have you expect something it was never going to do. A coil cover is about pride in the build, not lap times.
Will carbon fibre handle the heat in the engine bay?
This is the most common worry, and it is a fair one, a coil cover lives in a hot spot. Good dry carbon finished with a UV resistant gloss clear coat handles normal engine bay heat cycling without drama. The clear coat is the part doing the work against heat and sun, and a proper one will hold up for years on a daily driven or weekend FG.
The one time to think harder is a high mount turbo setup where the manifold and dump are throwing serious heat right at the cover. In that case I would run a turbo blanket or heat wrap, the same as you would to protect anything else sitting near that heat. For a stock or mild Barra, it is a non issue.
Does it fit every FG Falcon and Barra?
The V2 cover fits the FG Falcon from 2008 to 2014 across the Barra range, including the XR6, XR6 Turbo, F6 and G6E. It is a direct replacement for the factory plastic cover and drops onto the same mounting points, so there is no cutting and no drilling.
One detail worth knowing if you have touched your breather setup: the V2 is reshaped to clear -10 AN breather fittings, which the original V1 would foul. So if you are running a catch can with -10 lines, the V2 is the version you want. Fitment is a straightforward swap onto the factory mounting points. There are eight Torx bolts holding the cover on, so you undo those, lift the factory plastic cover off, sit the carbon one in its place and do the bolts back up. With a Torx bit in hand it is a few minutes of work, one of the easiest carbon parts to fit on the whole car.
Dry carbon or wet carbon, does it matter here?
It does, and it is worth understanding before you buy any carbon part, not just a coil cover. Our coil cover is dry carbon, which means prepreg: the fabric arrives already impregnated with resin in a precise ratio, gets laid into a mould, and is cured under heat and pressure. That gives a high fibre to resin ratio, a tighter surface, and a panel that is lighter and stiffer.
Wet carbon is the other common method, properly called VARTM or vacuum infusion, where dry fabric is laid into the mould and resin is pulled through it under vacuum. It is a legitimate process and nothing to look down on. The catch is that a lot of cheap wet carbon parts are really a thin carbon surface over fibreglass plies underneath, so most of the panel by volume is fibreglass. Same infusion process, just a cheaper fabric stack hiding under the weave. For a part living in a hot engine bay, dry carbon construction with a good clear coat is what I would want under there.
How to tell real carbon from carbon over fibreglass
The quickest check is to flip the part over and look at the back. The most common giveaway that a part is carbon over fibreglass is a back face painted a flat, solid, opaque black to hide the fibreglass underneath. A full carbon part has no reason to be painted on the back, you can see the dark grey weave naturally through the resin.
If the back is not painted, the other tells are a pale, almost translucent layer where resin has soaked into fibreglass cloth, pale material showing at any cut edge or mounting hole where carbon would be dark grey to black, and a part that feels noticeably heavier in the hand. If you want the full walkthrough, I wrote a longer guide on how to tell real carbon fibre from fake before you buy.
Twill or forged, which finish suits an FG bay?
Both are real carbon, they just look different. Twill is the classic 2x2 weave, symmetrical and repeating, the pattern most people picture when they hear carbon fibre. Forged uses randomly oriented carbon, so the grain never repeats and every cover looks slightly different, which gives a more modern, aggressive look. Neither is better than the other, it comes down to the look you are chasing for your build. If you are weighing it up, here is the difference between forged carbon and twill weave in more detail.
Where the coil cover fits in an FG build
If your plan is a clean engine bay, the coil cover is the place to start, then you can layer in other carbon pieces from there. You can see it alongside the rest of our carbon fibre parts for the Ford Falcon FG, and if you want to map out a fuller plan I put together a rundown of the best carbon fibre upgrades for the FG and FG-X. Running a different car? The rest of our carbon fibre range covers the other platforms too.
FAQ
Does a carbon fibre coil cover add horsepower?
No. It is a cosmetic engine bay part. It replaces the factory plastic coil cover with real carbon and changes how the bay looks, nothing more. If a seller tells you a coil cover makes power, walk away.
Will a carbon coil cover warp or melt on a turbo Barra?
On a stock or mild Barra, no, a good dry carbon cover with a UV resistant clear coat handles normal bay heat. On a high mount turbo throwing extreme heat right at the cover, run a turbo blanket or heat wrap to protect it, the same as you would anything else near that heat.
Does the V2 coil cover fit a stock FG with no other mods?
Yes. It is a direct replacement for the factory plastic cover on the FG Falcon from 2008 to 2014 across all Barra engines. It mounts on the factory points with eight Torx bolts, so it is a quick swap with a Torx bit. If you have modified your breather to -10 AN, the V2 is shaped to clear those fittings.
Is dry carbon worth paying more for than wet carbon?
For a coil cover sitting in a hot bay, yes, the tighter dry carbon surface and a proper clear coat hold up better over time. Whichever you choose, avoid cheap carbon over fibreglass parts, and check the back face is not painted flat black to hide a fibreglass core.
A coil cover will not make your Barra quicker, but it is the cheapest way to make the bay look like you actually care, and on a tidy FG that goes a long way. If you want a hand picking a finish, flick us a message and I will talk you through it.
Riley