TODOROKI™ SINGLE Made-to-Order Equal-Length Z-Pipe Single-Exit Exhaust｜BMW M3 F80 / M4 F82/F83 (S55)

The S55 is a 3.0-litre twin-turbo straight-six — the M engine that preceded the S58, fitted to the M3 F80 and M4 F82/F83. It combines a 7,600rpm limit with a rev-out that stays clean despite forced induction. The factory exhaust, though, is designed to deliberately suppress sound pressure through its silencers.The engine has the character, but the exhaust note alone falls short. This is the source of the first disappointment most owners notice on the F80 / F82.

TODOROKI™ SINGLE takes everything from the catalytic converter back andSingle-exitA cat-back system that replaces it with this. The mid-pipe isA structure that combines equal-length design with a Z-pipe, crossing the exhaust from the left and right banks before consolidating it into one pipe.A grade that shapes its sound through structure alone, without a valve.

This productMade to orderThis is made to order. Once your order is confirmed, we build one unit exactly to your chosen specification.

The TODOROKI™ SINGLE has no valved exhaust. This is not a stripped-down specification, butA grade built on a different design philosophy.

A valved exhaust is a mechanism for switching volume, but the trade-off isMoving parts and electronics are placed partway along the exhaust path. The valve itself, the actuator, the wiring, the controller — all of these sit in a place that's constantly exposed to heat and vibration.

In a configuration without a valve, none of these exist in the first place.Nothing to fail, and no wiring work requiredInstallation is completed simply by reconfiguring the exhaust system. And there's nothing blocking the exhaust path.

In return,There's no option to drive quietly. The volume is the same at cold start as it is through a residential street. If you want to change it to suit the situation, choose one of the valved TODOROKI™ VALVE RS grades.

In the S55, two turbos each serve three cylinders. Gas leaving the left and right banks passes through separate turbines before flowing downstream.Where and how to bring together exhaust that's been processed separately on each side. This is what determines the sound quality.

This product's mid-pipe isEqual-length Design. Matching the left and right path lengths means the exhaust pulses reach the junction together. Leave them unequal and they arrive out of step, the pulses cancel each other and the note muddies.

Into that,Z-pipeis added. This design crosses the left and right paths once, equalising the pressure difference before they merge.Gain flow without losing low- and mid-range torque. The equal-length design and the Z-pipe are a combination that doesn't work with just one or the other.

Beyond that point, the path merges into one. Because splitting and merging are kept to a minimum,Exhaust gases exit the car via the shortest possible route.

The factory M3 F80 / M4 F82, F83 use a quad-exit layout. TODOROKI™ SINGLE takes thisA configuration that consolidates into a single exit.

Changing the number of tips is not simply a design change.the length of the exhaust path, the weight at the rear of the car, and the directionality of the sound all change. Where four tips spread the sound left and right, a single exit releases it from one point, so it sounds more concentrated.

This is a configuration people feel strongly about either way. If you want to keep the factory quad-exit look, consider TODOROKI™ VALVE RS with the equal-length mid-pipe.

• Equal-length Mid-pipe: matching the left and right path lengths brings the exhaust pulses into step. With nothing cancelling out, the note stays clean and keeps its core
• Z-pipe: Crosses the left and right paths to equalise the pressure difference before they merge. A structure that maintains low-to-mid-range torque while securing flow
• Silencer Internal Structure: packed with heat-resistant stainless wool and sound-absorbing fibre. Compared with ordinary glass wool it degrades far less under heat, so silencing performance holds up over the long term
• An exhaust path with no moving parts: Since there is no valve, nothing obstructs the exhaust path. The exhaust follows the same path across the entire rev range
• Single-exit: Consolidates the outlets into a single exit. This fundamentally changes the rear-end impression compared with the factory quad-exit layout
• 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 for an exhaust is determined by the actual car, not the drawings. For the TODOROKI™ F80 / F82 / F83 version,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.Because a single-exit layout differs greatly from the factory routing, this measurement accuracy directly determines whether it fits.

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.

We offer 6 grades for the M3 F80 / M4 F82 & F83 (S55).With or without a valved exhaustandNumber of Tips, andMaterialplease choose accordingly.

This product and TODOROKI™ VALVE RS Z-Pipe Equal-Length share the same mid-pipe structure. The difference isValved exhaust or not, and number of tips. For those who don't need to switch volume and prefer the look of a single-exit rear end, this product is the most rational choice.

SINGLE is the grade that builds its sound through construction alone. There is no valve — no moving part at all — and what that saves goes into material and construction.The silencer body features the TODOROKI™ logo. As a brand, we apply this to every product regardless of price point.

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: It lets us accommodate requests like "I want it louder" or "I'd like it a bit quieter"
• 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
2. Tip (exhaust tip) diameter
3. Exhaust Body Wall Thickness / Pipe Diameter
4. Adding a valved exhaust
   • This product has no valve, but if you'd like one added, please contact us (additional charges and extended lead time will apply)

In every case,Please contact us before purchasing. Specifications are fixed at the production stage and cannot be changed afterward.

• Body Material: SUS304 stainless steel
• Structure: Cat-back (full replacement from the catalytic converter back).Single-exit
• Mid-pipe: Equal-length design + Z-pipe
• Wall thickness: 1.5mm
• Inside the Silencer: heat-resistant stainless steel wire plus sound-absorbing fibre
• Valve mechanism: None (a construction with no moving parts)
• Welding: Full welds using high-temperature TIG welding
• Installation: Uses the factory hanger positions. A bolt-on design that requires no modification to the car
• Logo: TODOROKI™ logo on the silencer body

• Equal-length Mid-pipe (Z-pipe)
• Silencer
• 1 tip
• 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 M3 F80 / M4 F82 & F83 (S55)Purpose-built design.

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 installing the exhaust requires specialised tools and a lift. We strongly recommend installation by a workshop or pro shop with the relevant expertise.

This product has no valve, so no wiring work is needed. On cars with a factory valve, however, removing it may trigger a warning light, in which case 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.