A large part of what we build is not BMW. Nissan, Subaru, Honda, Mazda and Land Rover each bring a different set of fitment problems, and they are not the same problems you solve on a German platform.
On BMW, the hard part is usually working out which chassis code you have and whether the car left the factory with valve control. On Japanese and Land Rover platforms, the harder part is often earlier in the conversation: working out which generation, which market and sometimes which engine family the car actually is. Get that wrong and every other question is moot.
So this is a guide to the variables that actually decide fitment on those platforms, and to the information that settles it quickly.
The single most useful habit on these platforms is to stop thinking in model names and start thinking in generation ranges. A model name can stay the same for a decade while almost nothing underneath it does.
Subaru is the clearest example. Our intake kits are split into distinct ranges rather than one "WRX intake" — there is a kit listed for the 2004 to 2007 cars and a separate one for 2008 to 2014, and a heat-shield intake kit for the 2015 to 2020 WRX 2.0L. Those are not interchangeable parts with a different label. The engine bay changed, the intake path changed, and the part changed with it.
Exhaust work splits the same way. We list a cat-back for the 2015 to 2019 WRX STI separately from earlier cars, alongside a muffler-delete axle-back for 2015 to 2021. A buyer who orders on "WRX STI" alone has roughly a one-in-three chance of being right.
The practical fix costs nothing: quote the year range and the engine code together, and use the chassis or generation designation when the platform has one. That single habit resolves most fitment enquiries before a part is ever picked.
The opposite problem also exists, and it is more interesting. Some parts genuinely fit across several model names because those models share a platform.
The clearest case in our catalogue is the Z and G family. We list a titanium plate for the Nissan 350Z VQ35HR and 370Z, and for the Infiniti G35, G37, Q40 and Q60 with VQ37VHR — one part, six model codes. The same cross-listing applies to smaller titanium components such as the oil filler cap, the washer fluid tank cap and the fuse box cover for the same engine family. A 350Z/G35 VQ35HR booster hose kit covers the 2007 to 2008 cars across both badges.
This cuts both ways, and it is worth being precise about it. A shared platform means a part can legitimately cover several badges — and it also means a listing that names only one badge may be understating its own coverage. If you have an Infiniti and only see a Nissan listing, it is worth asking rather than assuming.
Equally, a shared platform does not mean every part is shared. Exhaust rear sections, intercooler kits and intake pipework are usually specific even where the platform is common, because the packaging around them differs.
Exhaust valve control is not a German-only complication. It appears on these platforms as well, and it changes the rear section just as it does elsewhere.
Our Subaru Impreza STI 2004 cat-back is listed in two versions — one with a valve and one without. Both are for the same car. The difference is the specification the car was built to, and a buyer ordering on model and year alone will not have distinguished between them.
The Infiniti Q50 and Q60 3.0T VR30 is a similar case: we list a dual-valve exhaust cat-back for the 2016 cars, and a resonated downpipe for the same engine. Valve configuration and downpipe choice are separate decisions, and both need to be confirmed rather than assumed from the model name.
A meaningful part of our non-BMW work is diesel — pickups, 4x4s and commercial platforms. Fitment here is driven by a different set of variables: engine displacement, induction type, and whether the vehicle was sold with or without an intercooler in a given market.
Our Nissan work includes a front-mount intercooler kit for the Navara NP300 D23, and a radiator silicone hose set for the Patrol Y60/GQ 2.8L RD28T turbo diesel spanning 1994 to 1997. Those two listings sit at opposite ends of the difficulty scale: one is a current pickup with a well-documented engine bay, the other is a vehicle old enough that market variants are the main source of confusion.
The same pattern appears with the Mazda BT-50 and the Isuzu D-Max and MU-X, for which we list silicone intercooler hose sets for the 2025 vehicles. They are listed separately, and that is deliberate: a buyer needs to select the correct one for the vehicle in front of them rather than assume a shared listing.
On the American diesel side, the volume of our catalogue sits in charge air cooler boot kits — 5-ply silicone kits covering Ford Power Stroke 6.4L and 7.3L, GM Duramax LB7, LML and L5P, and Dodge Ram Cummins 5.9L and 6.7L across a long span of model years. There is also a coolant hose reroute kit for the 6.7L Power Stroke covering 2011 to 2026. On these platforms the year range and the engine code together are what identify the part; the truck's badge is not enough.
Land Rover deserves its own warning, because the Defender is the clearest example in our catalogue of a model name that spans radically different machines.
We list three Land Rover hose products, and they are not variations of one part. There is a coolant radiator hose kit for the Discovery 2 TD5, a silicone boost hose kit for the Defender and Defender Puma 2.4 TD4/TDCi, and a full coolant hose kit with a rubber turbo pipe for the Defender 300TDI. A 300TDI Defender, a TD5 Discovery and a 2.4 Puma Defender are three different vehicles that share a badge lineage, and the hoses do not cross over.
If you own a Defender, the engine designation is the fitment identifier — not the model year, not the body style. That is the first question to answer.
The Honda Civic Type R FL5, powered by the K20C1, is a useful contrast to everything above, because it is genuinely new rather than another variant of a long-running line.
For that car we list an autoclave dry carbon charge pipe — direct bolt-on as an OEM upgrade — and a cold air intake system covering 2022 to 2026. Both are specific to the FL5 generation and the K20C1, and neither carries over from the previous FK8.
The lesson is the mirror image of the Subaru case. On a long-running model, most mistakes come from assuming the wrong generation. On a new platform, the risk is the opposite: assuming that because a previous generation had a part, this one can use it.
Across all of these platforms, five details do the work:
You can browse by platform directly: Nissan, Subaru, Honda and Mazda, or Land Rover. Diesel truck and 4x4 work sits under Ford, GM and Dodge. Within those ranges you can go straight to air intakes, exhaust pipe, intercooler, silicone tubes or other parts, and for Land Rover to Land Rover silicone tubes.
Specific examples referenced above include the valved Subaru Impreza STI 2004 cat-back, the dual-valve Infiniti Q50/Q60 VR30 3.0T cat-back, the Honda Civic Type R FL5 cold air intake system, the Nissan Navara NP300 D23 front-mount intercooler kit and the Land Rover Defender and Defender Puma 2.4 TD4/TDCi silicone boost hose kit.
And if your vehicle is not listed at all, that is a routine project rather than a dead end. Our custom service works from a drawing or from the original part, which is how most of the platform coverage above was built in the first place. You can also browse the full range on our Shop by vehicle page.
