3″ catless race downpipes for the S55. Faster spool, more power, harder note.

S55 Catless Downpipes
3″ catless race downpipes for the S55. Faster spool, more power, harder note.
$800
- 304 Stainless SteelMaterial
- 3″ full-length (76mm)Pipe Diameter
- Catless high-flow race downpipesConfiguration
- Lifetime against manufacturing defectWarranty
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- Free insured shippingover $250, AU wide
- 30-day returnsunused, undamaged
- Not sure it fits?send us your VIN
Going Stage 2?
S55 Stage 2 Bundle From $1,809
Downpipes, cold air intake and bootmod3 tune in one order.
Off-road / motorsport use only
3″ catless race downpipes for the S55. Faster spool, more power, harder note.
3″ catless race downpipes for the S55 in the F80 M3, F82/F83 M4 and F87 M2 Competition. Removing the factory catalytic converters drops back-pressure sharply — the turbos spool faster, power climbs and the S55 picks up a harder exhaust note.
Why it’s built this way
- Full 3″ almost end to end — no necking down near the turbos, so flow is maintained.
- Mandrel-bent, TIG-welded 304 stainless with smooth radius bends.
- CAD/CAM cast flanges — a seamless flange-to-pipe transition.
- RHD and LHD — fits both with no modification.
In the box
- Pair of catless downpipes
- Grade 12 mounting hardware
Good to know
- Tune: required after install — expect around +20–25hp and 25–30 lb-ft at the wheels once tuned.
- Fits: F80 M3 / M3 Competition, F82/F83 M4 / M4 Competition (2015–2019), F87 M2 Competition (S55 only, 2018–2021).
- Install: professional install required.
- Warranty: lifetime against manufacturing defect.
- Catless — off-road / motorsport use only.
Every EuroSpec downpipe, intake pipe, charge pipe and turbo inlet, against manufacturing defect. For life.
The details
Spec sheet
| Material | 304 Stainless Steel |
|---|---|
| Construction | Mandrel-bent, TIG-welded |
| Pipe Diameter | 3″ full-length (76mm) |
| Configuration | Catless high-flow race downpipes |
| Flange | CAD/CAM cast — seamless flange-to-pipe transition |
| Power Gain | +20–25 hp & 25–30 lb-ft at the wheels (when tuned) |
| Hardware | Grade 12 mounting hardware included |
| Fitment | S55 — F80 M3, F82/F83 M4, F87 M2 Competition (2015–2021) |
| Drive | RHD & LHD — no modification required |
| Tune | Required post-install |
| Warranty | Lifetime against manufacturing defect |
| Compliance | Off-road / motorsport use only |
Will it fit my BMW?
| F80 | M3 | 2014 – 2018 |
|---|---|---|
| F82 | M4 | 2014 – 2020 |
| F87 | M2 Competition | 2018 – 2020 |
Not sure? Email eurospec.au0@gmail.com with your VIN and we'll confirm it fits before you order.
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FAQ
- Tune
- Required post-install
- Dispatch
- In Stock — Dispatched today
- Warranty
- Lifetime against manufacturing defect



















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