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CTS Turbo Downpipe Kit CAST 2.5? BMW 135i/335i N54 (rear-wheel drive only)
CTS Turbo race decat downpipe, T304 stainless steel mandrel bent. Unlocks the turbo's potential by removing the main restriction in the exhaust system. ECU tuning required.
€427.67
(VAT incl.)
€475.19
-10%
?
Available from the manufacturer
- Order today
- Preparation at the manufacturer
- Delivery Mon 9 Nov
Estimated delivery on 09/11/2026
This lead time is an estimate and may change due to circumstances beyond our control
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The CTS Turbo CAST 2.5? Downpipe Kit is intended for BMW 135i/335i N54, rear-wheel drive only. This race decat downpipe in T304 stainless steel aims to remove the main restriction in the exhaust system and unlock the turbo's potential.
Technical specifications
- Cast stainless steel downpipe inlet elbow
- T304 stainless steel flanges
- T304 stainless steel O2 sensor bungs
- Mandrel-bent tube, TIG welds
- Sporty sound
- Part number: CTS-EXH-DP-0004
Compatibility
BMW 135i/335i N54, rear-wheel drive versions only.
Regulatory notice
This decat downpipe is intended for motorsport or track use only. Installation on public roads is prohibited in most European countries. ECU tuning (or CEL removal via OBD) is required to prevent the engine warning light from staying on.
The CTS Turbo approach
CTS Turbo was founded by VAG performance tuning enthusiasts and caters to BMW, MINI, Mercedes and Volkswagen-Audi tuners. The brand states that it develops its products in-house, tests them on the dyno and validates them on the road before release.
Compatible vehicles (11)
BMW
(11)
▼
| Model | Engine | Fuel | Displacement | Power | Years |
|---|---|---|---|---|---|
| Série 1 (E82) Coupé (10/2007 - 2013) | 135 i (Bi Turbo) (306 cv) | - | - | 306 hp | 2007+ |
| Série 1 (E82) Coupé (10/2007 - 2013) | 135 i (Mono Turbo) (306 cv) | - | - | 306 hp | 2007+ |
| Série 1 (E88) Cabriolet (03/2008 - 2013) | 135 i (Bi Turbo) (306 cv) | - | - | 306 hp | 2008+ |
| Série 1 (E88) Cabriolet (03/2008 - 2013) | 135 i (Mono Turbo) (306 cv) | - | - | 306 hp | 2008+ |
| Série 3 (E90) Berline (03/2005 - 12/2011) | 335 i (306 cv) | - | - | 306 hp | 2005-2011 |
| Série 3 (E90) Berline (03/2005 - 12/2011) | 335 i 3.0 (306 cv) | - | 3000 cc | 306 hp | 2005-2011 |
| Série 3 (E90) Berline (03/2005 - 12/2011) | 335 i 3.0 (320 cv) | - | 3000 cc | 320 hp | 2005-2011 |
| Série 3 (E90) Berline (03/2005 - 12/2011) | 335 iS 3.0 (306 cv) | - | 3000 cc | 306 hp | 2005-2011 |
| Série 3 (E92) Coupé (06/2006 - 06/2013) | 335 i (306 cv) | - | - | 306 hp | 2006-2013 |
| Série 3 (E92) Coupé (06/2006 - 06/2013) | 335 i 3.0 (306 cv) | - | 3000 cc | 306 hp | 2006-2013 |
| Série 3 (E92) Coupé (06/2006 - 06/2013) | 335 i 3.0 (320 cv) | - | 3000 cc | 320 hp | 2006-2013 |
| Product family | Exhausts |
|---|---|
| Exhaust | Downpipe + Decat |
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