Three engines, three power levels, one platform. Compare every MX-5 NC engine option: stock power, tuning potential, turbo ceiling, and the best upgrade path for your goals and budget.
Already decided on the 2.5? See the MX-5 NC 2.5 swap kit & price. Going turbo? See the MX-5 NC turbo kit.
The 2.5 L5-VE goes into the 1.8 car like into the 2.0, with two extra parts: the 2.0 ECU with base map (€350 + VAT) and the 2.0/2.5 oil pickup (€80 + VAT). On our 2.5 base map a stock swap makes 183hp / 245Nm. NC 2.0 cars keep their own ECU. 2.5 swap price
A stock NC 2.0 makes 160hp / 188Nm and a stock 1.8 126hp / 167Nm. Here is what each step makes on our dyno, from a Stage 1 remap to the 2.5 swap and turbo.
| Engine / build | hp | Nm |
|---|---|---|
| NC 1.8 (L8) · stockfactory figure | 126 | 167 |
| NC 2.0 (LF-VE) · stockfactory figure | 160 | 188 |
| NC 1.8 · Stage 1 remapdyno range, real cars | 139–159 | – |
| NC 2.0 · tune + headers/exhaustdyno range, real cars | 186 | 209 |
| 2.5 L5-VE swap · base mapnaturally aspirated | 183 | 245 |
| 2.5 swap + 45mm headers + Stage 2 camsnaturally aspirated | 220 | 270 |
| Turbo kit (1.8 / 2.0 / 2.5)380hp = our safe limit | 250–380 | – |
Engine figures. Ranges are the spread across real customer cars on our dyno; "–" means we do not quote a torque figure for that step.
Same rollers · DIN 70020
197 Nm / 162 hp → 276 Nm / 210 hp+79 Nm · +48 hp
Add them to your swap in one click. Prices ex VAT.
MX-5 NC Build Planner
Real numbers from our own dyno, not factory promises.
Stock
125 hp
Full build
175–180 hp
Custom remap on the dyno
137–140hp
+15 hp
Headers + custom remap
150–153hp
+28 hp
Cams + headers + remap
175–180hp
+55 hp
Select an engine to see detailed specs, pros/cons, and upgrade options.
MZR 2.5 DOHC VVT (Swap)
Donor: 2006-2013 (Mazda 3/5/6) | 2488cc | Redline: 7200 rpm
Stock HP
183
Stock Torque
245Nm
Max NA
220hp
Max Turbo
320–380hp
Weight
~140kg
Best For
Maximum NA performance, turbo builds up to 380hp, best all-around upgrade
Stage 2 (Cams + Headers)
183 → 220hp / 270Nm
Turbo Kit (on 2.5L)
+50-180hp
| 1.8L L8 | 2.0L LF-VE | 2.5L L5-VE | |
|---|---|---|---|
| Stock HP | 126 | 160 | 183 (base map) |
| Stock Torque | 167Nm | 188Nm | 245Nm |
| Max NA HP | ~145 | 205 (dyno) | 220 (dyno) |
| Max Turbo HP | 250–380 | 280–380 | 320–380 |
| Turbo Safe (Stock Internals) | ~280hp | ~320hp | ~380hp |
| Forged Needed Above | 300hp | 320hp | 380hp |
| Displacement | 1798cc | 1999cc | 2488cc |
| VVT System | Single/None | Dual (S-VT) | Dual (S-VT) |
| Redline | 7000 rpm | 7200 rpm | 7200 rpm |
| Weight | ~130kg | ~135kg | ~140kg |
| Aftermarket Support | Good | Excellent | Excellent (growing) |
| Availability | Common | Very Common | Donor required |
Swapping a 1.8 NC to the 2.5 L5-VE takes it from 126hp / 167Nm stock to 183hp / 245Nm on the base map, +57hp and +78Nm, with the torque spread across the whole rev range. Add Stage 2 cams and headers and the 2.5 reaches 220hp, still naturally aspirated.
For comparison, a Stage 1 remap on a stock 1.8 measured 131 → 147hp on our dyno. On a 1.8 we supply a 2.0 ECU set up for the 2.5. Packages and prices: MX-5 NC 2.5 swap kit & price.
Every step we have measured on our own dyno. Anything without a number we have not measured yet. We do not invent it.
NC 1.8 · Stage 1 remap
131 → 180 Nm
131 → 147 hp
from €450 + VAT (€558 incl. VAT) · dyno-verified
NC 2.0 · free-flow headers + custom tune
free-flow 4-2-1 headers + bespoke map
160 → 183 hp
headers from €550 · dyno-verified
NC 2.0 · headers + tune + cams
Stage 2.5 cams, fully NA
160 → 205 hp
cams from €850 · dyno-verified
NC → 2.5 L5-VE swap (turn-key)
up to 270 Nm
183–220 hp NA
from €3,600 · dyno-verified
NC 2.0 · Turbo kit
190 → 341 Nm
160 → 190 hp
quoted per build · dyno-verified
Based on our documented builds, our honest recommendation for each type of owner.
Budget Weekend Driver
Upgrade Path
Stock 2.0L → ECU Remap → Intake + Headers
Maximum gain for minimum investment. The ECU remap alone gives you noticeably better throttle response and a few extra horses. Add intake and headers for the full NA experience.
Budget
€500–€1,800
Result
170–175hp
Serious Enthusiast
Upgrade Path
Stock → 2.5L Swap → ECU Cal → (Optional: Stage 2)
The 2.5 swap is the single best value upgrade for the NC. 183hp NA (220hp with headers & cams) with OEM reliability. The torque transforms the car's character completely. Add Stage 2 cams and headers for 220hp.
Budget
€2,600–€4,000
Result
183–220hp
Track/Power Builder
Upgrade Path
Stock → 2.5L Swap → Turbo Kit → (Optional: Forged internals)
The full NC build: up to 380hp. Start with the 2.5L swap for a solid daily driver (183hp NA), then add a turbo kit for up to 380hp. The 2.5L handles 380hp on stock internals.
Budget
€6,000–€15,000+
Result
up to 380hp
The Mazda MX-5 NC (2005-2015) was offered with two engines from the factory: the 1.8L L8 (primarily in European and Japanese markets) and the 2.0L LF-VE (available worldwide). Both belong to Mazda's MZR engine family, a proven, lightweight, naturally-aspirated DOHC design that revs freely and responds well to modifications.
The third option: the 2.5L L5-VE is a swap engine sourced from the Mazda 3, 5, or 6. Because it shares the same MZR architecture, it bolts directly into the NC chassis with no fabrication. It is one of the most common engine upgrades for the NC, and DMS Tuned has supplied 200 2.5 engines so far.
Each engine has its strengths: the 1.8L is lightest, the 2.0L offers the best balance, and the 2.5L delivers the most power and torque by a significant margin. For turbo builds, the 2.5L is the clear winner: its larger displacement produces more torque at lower boost pressures, allowing for 380hp on stock internals where the 1.8/2.0 would already need forged components.
At DMS Tuned, we help MX-5 owners across Europe choose between these options every day. A simple ECU remap, a complete 2.5L swap or a full turbo build: we recommend the path that fits your goals and budget, based on 300+ MX-5 builds and our own dyno data.
1,100kg. 350hp. 3.14 kg/hp. That number terrifies Ferrari, GT3, M4. You don't need €150000. You need DMS.
3.14kg/hp
Power Ratio
3.9s
0-100 km/h
~€15K
Total Build
~€15K
DMS MX-5 NC
€150K
Supercars
"Same speed. 1/10th the price. All the soul."
