Engine platform
BMW N13
1.6L Single-Scroll Turbo I4
F‑series 1.6T platform with shared factory hardware across multiple models. Choose your turbo setup and fuel, then add Flex Fuel / Additional Maps as needed.
Cars this engine is fitted to
135i/335i/535i variants where N13 was offered (market dependent).
BMW N13 calibration stages
Each stage states the hardware it expects and the fuels it supports. Pricing is the base calibration for that stage.
Stock Turbo
Custom quoteRequired hardware
- Healthy plugs/coils
- Quality fuel
Hybrid Turbo
$400Required hardware
- Downpipe
- Intercooler recommended
Big Single Turbo
Custom quoteRequired hardware
- Hybrid turbo or big turbo kit
- Fueling upgrades as required
Package includes
- Custom Boost Control
- Fuel + Ignition Optimization
- Revision Support (logs)
What to expect on the N13
Built for daily drivability, clean boost control, and repeatable log-based revisions. Staged options for stock turbo, hybrids, and race builds.
N13 What to Expect
| Setup | 93 Octane | E30/E50 Blend | Full E85 |
|---|---|---|---|
| Stock Turbo | 220+ whp | 260+ whp | Not recommended |
| Hybrid Turbo | 280+ whp | 310+ whp (meth req.) | 320+ whp (PI req.) |
| Big Single | 300+ whp | 330+ whp (PI req.) | 350+ whp (built motor) |
Stock Turbo
Hybrid Turbo (TC / Mosselman / LM250)
Big Single / Racing
Hardware checklist
- Downpipe recommended for Stage 2+
- Intercooler recommended for hybrids
- Upgraded HPFP/LPFP required for full E85 power targets
Power comes after the data.
The same discipline applies on every platform, the N13 included.
- 01
Component limits are respected
Targets are set against what the factory hardware on this platform can hold, so the car stays usable as a daily driver.
- 02
The calibration follows your logs
Boost target against actual, air-fuel ratio, ignition timing, knock activity and fuel pressure are read on every revision round.
- 03
Revisions continue until it is on target
Tuning is a conversation. Logs come back, the file is adjusted, and the loop repeats for as long as it takes.
- BMW Platforms We Tune
- BMW N20 TuningF‑series 2.0T platform known for strong gains on pump and ethanol blends with supporting hardware. Great daily + track calibration support.
- BMW N54 TuningIconic twin-turbo BMW platform. Supports stock twins through big singles with full fuel/boost/timing optimization and strong safety strategy.
- BMW N55 (E-Series) TuningE-series N55 platform calibration with staged options for bolt-ons and turbo upgrades. Strong drivability focus with torque shaping.
- BMW N55 (F-Series) TuningF-series N55 platform with staged support for stock turbo, hybrids, and singles. Add Flex Fuel / Additional Maps / Port Injection as needed.
- BMW B58 Gen 1 TuningB58 Gen 1 (B58B30M0) platform. Choose your fuel and hardware, then add Flex Fuel / Additional Maps as needed.
- BMW B58 Gen 2 TuningB58 Gen 2 (B58TU, G-series) platform. Higher factory output with strong headroom when tuned. Choose your fuel and hardware, then add Flex Fuel / Additional Maps as needed.
- BMW S55 TuningF8x M platform tuning with staged support for stock turbos, hybrids, and singles. Add Flex Fuel / Additional Maps / Port Injection as needed.
Running something unusual?
Big turbo, port injection or an alternative fuel setup on the N13 is handled as a one-off calibration. Send the build and we will tell you what is workable.