TODOROKI™ VALVE RS Made-to-Order Valved Exhaust｜BMW 335i E90 / E92 / E93 (N54 / N55)

The 335i is fitted with a 3.0L inline-6 turbo engine.Pre-LCI cars use the twin-turbo N54; LCI cars use the single-turbo N55, all of it evidence of how firmly BMW held on to the straight-six in that era. The factory exhaust, though, is designed to deliberately suppress sound pressure through its silencers.For what the straight-six turbo is capable of, the exhaust note alone is too tame. The first sense of dissatisfaction 335i owners often feel comes down to this point.

TODOROKI™ VALVE RS replaces everything downstream of the catalytic converter2-tip Cat-back System. The mid-pipe directs the exhaust, and an electronically controlled valve switches the volume.With the valve closed, refinement equal to factory; open, the straight-six turbo's true pull and sound pressurerestoring 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 left and right silencers. 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 routed through the left and right silencers. Volume drops close to factory levels, so it's no issue driving through residential areas or starting up 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.

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 left and right silencers intact, so the system is far less likely to choke high in the rev range
• Left and Right Silencers: One unit is placed on each side. With the valve closed, sound is muted by routing through here; 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
• Dual-exit: Exhaust exits one tip per side, the same count as factory. This configuration changes only the sound while keeping the factory's understated rear-end look
• 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

Fitment accuracy on an exhaust is settled by the actual car, not by a drawing. The TODOROKI™ system for the 335i E90, E92 and E93 is Designed 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-weldedThe beadAn evenly spaced, scale-like finishThis is the result. It's a look that only comes from continuously holding both the filler-wire feed speed and the weld-pool temperature constant, andA part where the fabricator's skill shows directly.

This isn't just a matter of appearance. The fact that the beads are aligned meansProof that heat input was consistent as well. Hardness is preserved through the weld and oxidation is kept in check. An exhaust takes heat and vibration continuously, so the quality of every joint is the durability of the system.

This productA bolt-on design that fits without modifying the factory partsThis is the case. If removed, the vehicle returns completely to its factory state.

The E90 / E92 / E93 is already a generation sold as used cars.Wanting to put it back to factory when selling the car, or only for the shaken (vehicle inspection)—it can handle that kind of use too. Keep the factory exhaust in storage, and you can always switch back.

What most often leads to regret with an exhaust swap isDrone during high-speed cruising. At certain engine speeds, low frequencies resonate inside the cabin and make conversation or music hard to follow — and the more a system prioritises flow, the more likely it is to happen.

This productThis frequency band is controlled by the capacity and internal structure of the left and right silencers. With the valve closed, drone is barely noticeable during high-speed cruising. This matters most for those who regularly drive long distances.

There are two engine types available in the 335i.The earlier N54 is twin-turbo, the later N55 is single-turboThis product fits either.

The N54 splits the exhaust across two turbos, while the N55 consolidates it into one. The layouts differ, but both are 3.0L straight-six engines.An straight-six has evenly spaced firing intervals, a structure in which primary and secondary vibrations naturally cancel out. 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.

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

1. Tip finish
   • Choose from 7 options (the numbers correspond to the list in the product images)
2. Tip (exhaust tip) diameter
3. Mid-pipe diameter
   • In addition to the standard specification, custom diameters can be made on request
4. Exhaust Body Wall Thickness / Pipe Diameter
5. 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 (full replacement downstream of the catalytic converter). Dual-exit
• Mid-pipe: Straight construction
• Valve mechanism: Electronically controlled valve (remote-operated, standard) / factory valve linkage also available
• Welding: Full welds by TIG welding (evenly spaced, scale-like beads)
• 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
• Left and Right Silencers
• 2 exhaust tips
• Valve controller, remote, and wiring
• Band clamp set

We are publishing actual exhaust-note recordings progressively as they become available for each model. If you're in a hurry, please use the contact form to"Vehicle model and chassis" and "sound sample request"Please include this when you contact us. For models we already have a sound sample for, we'll send it as is; for models still in preparation,We prioritise preparation for vehicle models based on customer requests.

BMW 335i E90 / E92 / E93 (N54 / N55)Purpose-built design. Fits the sedan (E90), coupe (E92), and convertible (E93) alike.

For the 3.0-litre straight-six 335i only. It does not fit other E9x models such as the 320i, 325i or 330i, nor the M3 (S65 V8), 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.