TODOROKI™ VALVE RS Made-to-Order Valved Exhaust｜BMW M240i F22 (B58)
The B58 is a 3.0L inline-6 single-turbo engine.A 3.0-litre straight-six fitted into the small body of the 2 Series Coupe is the M240i. A package that mounts a straight-six longitudinally in a body under 4.4 metres long has become a rare thing. The factory exhaust, though, is designed to deliberately suppress sound pressure through its silencers. Set against what the car itself is, only the exhaust note holds back. That first sense of something missing in an M240i comes from exactly this.
TODOROKI™ VALVE RS replaces everything downstream of the catalytic converterQuad-exit cat-back system. A straight-through mid-pipe carries the exhaust by the shortest possible route, and an electronically controlled valve switches the volume.Factory-equivalent quietness with the valve closed, and the B58's true pull and sound pressure when openrestoring it.
This productMade to orderThis is made to order. Once your order is confirmed, we build one unit exactly to your chosen specification.
The mid-pipe of the TODOROKI™ VALVE RS isStraight-through construction. No resonators, no bends: gas leaving the catalytic converter goes straight to the centre silencer. It is the most rational layout there is — no unnecessary resistance anywhere in the path.
If pure exhaust efficiency is your only goal, this is the most rational configuration.That said, straight construction has a clear drawback: with no silencing element, the volume stays the same at all timespoint. The volume doesn't change whether you're driving through a residential area or starting the car early in the morning.
The valved exhaust is what solves this.
- Valve closed: A quiet path that runs through the centre exhaust. Volume drops to near-factory levels, so it won't be an issue when driving in residential areas or starting the car early in the morning
- Valve open: The straight path opens up, maximising exhaust efficiency
Exhaust efficiency and quietness are normally a trade-off, but a design that switches the flow path itself lets you have both.Releasing the exhaust efficiency gained from the straight construction only when needed. Because the design has no silencing structure, the swing between valve open and closed is more pronounced.
This productElectronically controlled valve (remote-operated) as standard. If you'd like it changed to link with the factory valve, please contact us before purchase.
| Method | Operation | Who This Is For |
|---|---|---|
| Electronically controlled valveStandard | Included Remote | For those who want to control volume at any time, independent of the drive mode. This operates independently on the exhaust side |
| Factory valve-linked | Drive Mode | Opens only when SPORT or SPORT+ is selected, for those who want factory-equivalent behaviour. No extra operation required |
Whichever method you choose,Please be sure to let us know at the time of purchase. Specifications are locked in during production, so changes cannot be made afterward.
- Straight Mid-pipe: no resonators, no bends, no resistance. Gas velocity is carried through to the centre silencer intact, so the system is far less likely to choke high in the rev range
- Centre exhaust: A single silencer is positioned at the centre of the car. With the valve closed, exhaust routes through it for sound suppression; when open, it's bypassed
- Electronically controlled valve: switches the exhaust path just before the silencer. Closed, gas runs the quiet route through the silencer; open, it takes the straight path — so volume and character change together
- Quad-exit: Exhaust exits through four tips, two on each side. This configuration secures exhaust efficiency while achieving an appearance befitting an M model
- Cat-back Structure: The factory catalytic converter is left in place, replacing only the section downstream of it. As it uses the factory hanger positions, no modification to the vehicle is required
Exhaust fitment accuracy is determined by the actual car, not the drawings. The TODOROKI™ version for the M240iDesigned from 3D scan data of an actual car's underbody. Factory hanger positions, floor geometry and clearance to the rear bumper aperture are all pinned down from measured values, so it fits without modifying the car.
Welding isFully TIG-welded at high temperature. The base material is SUS304 stainless steel at a full 1.5mm wall thickness. An exhaust takes heat and vibration continuously, so the quality of every joint is the durability of the system.
The B58 is a single-turbo engine. Exhaust from all six cylinders passes through one turbine before flowing downstream, soExhaust exits after being consolidated into a single pipeHow the exhaust is handled from that point onward directly shapes the character of the sound.
A straight-six also fires at even intervals, so first- and second-order vibrations cancel each other naturally. Being able to raise sound pressure without touching that smoothness is the single biggest reason to pair a free-flowing exhaust with a straight-six.In the lighter M240i, the effect of changing the exhaust is easier to feelThis is also an advantage.
RS is a grade designed around one standard: no compromise on price, quality, or sound.The silencer body features the TODOROKI™ logo. If we are going to put our name on it, it goes on every product regardless of price point. Costs that contribute nothing to performance or sound are not carried; that money goes into material, construction and the price.
Focusing exclusively on BMW lets us share jigs and validation processes across products, and reading demand chassis by chassis removes the losses that come with small-batch production. Optimising every stage — administration, manufacturing and shipping — is what makes this price possible.
TODOROKI™ is made to order, one car's worth at a time, in partnership with our production facility. Fabrication begins once your order is confirmed, and BIMMER+ selects and inspects every specification before dispatch.
- Customization available on request: We're happy to discuss exhaust specifications with you before purchase
- Volume direction can also be specified: We can accommodate requests such as "more sound with the valve open" or "quieter with the valve closed"
- Additional Charges: Additional charges may apply depending on the specification
- Prior consultation required: If you'd like customisation, please be sure to contact us before purchase
- Notes: Some customisations may not be available depending on production status or vehicle model
- Tip finish
- Choose from 7 options (the numbers correspond to the list in the product images)
- Tip (exhaust tip) diameter
- Exhaust Body Wall Thickness / Pipe Diameter
- Valve control method
- Electronically controlled valve / remote-operated (standard)
- Linked to the factory valve (please let us know at the time of purchase)
- Body Material: SUS304 stainless steel
- Wall thickness: 1.5mm
- Structure: Cat-back (replaces everything after the catalytic converter). 4 tips
- Mid-pipe: Straight construction
- Valve mechanism: Electronically controlled valve (remote-operated, standard) / factory valve linkage also available
- Welding: Fully TIG-welded
- Installation: Uses the factory hanger positions. A bolt-on design that requires no modification to the car
- Logo: TODOROKI™ logo on the silencer body
- Mid-pipe
- Centre exhaust
- Exhaust Tips (4 pieces)
- Valve controller, remote, and wiring
- Band clamp set
Watch the exhaust-note sample
Reference recording. Samples may use another model with the same engine family, exhaust grade and material. The exhaust note varies with the vehicle, pipe configuration, recording conditions and playback equipment.
BMW M240i F22 (B58)Purpose-built design.
Dedicated to the 3.0L straight-six M240i. Does not fit 2.0L-and-under models such as the 218i / 220i / 230i, so please take note.
BIMMER+ organises its collections by chassis code. Search from your own chassis and only the parts that fit will appear. Model year, trim and prior modifications may mean some adjustment is needed at fitting, so please ask before you buy if anything is unclear.
The listed priceShipping, customs duties, and customs clearance fees are all included.There are no additional costs after the product arrives.
Exhausts are bulky and heavy, and shipping alone runs to around ¥20,000. Some sellers bill freight and domestic forwarding separately from the product price; BIMMER+ quotes one all-inclusive figure.
After your purchase, be sure to"Vehicle model / year / VIN" via our contact form. Even if you do not want any customisation, please still get in touch so we can identify your car.
Removing and fitting an exhaust requires specialist tools and a lift. We strongly recommend installation by a qualified workshop or specialist. Wiring for the valve controller is also involved, so if you are not confident about fitting it yourself, please use a professional.
On cars with a factory valve, removing it may trigger a warning light. If that happens, a canceller or similar solution will be required.
As these are built to order, shipping after order confirmation typically takes2–4 weeks. Customisation, production and logistics can push this beyond the stated period. If you are working to a deadline, talk to us before ordering.
- Depending on the vehicle's condition, year, and modification history, additional adjustment may be required at installation.
- Weld discolouration and finish may vary slightly between units.
- Exhaust parts are wear items. Please carry out regular checks for exhaust leaks and insulate wiring as needed.
BMW is a registered trademark of BMW AG. This is an aftermarket part and is neither manufactured by nor affiliated with BMW AG.
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