718 Cayman, Boxster & GT4 · 982 · Miami

718 Cayman GTS 4.0982 tuning

The 718 Cayman GTS 4.0 (982) uses a naturally aspirated 4.0 flat-six rated at 394 hp and 310 lb-ft from the factory. Without turbos, gains are smaller: about 12 hp at Stage 1. Most owners tune it for sharper throttle response, a stronger top end and sound.

4.0 flat-six394 hp stock310 lb-ft stock7,800 rpm limitEngine: 4.0 flat-six
Estimated power by stage · 718 Cayman GTS 4.0 (982)
Estimated power curves for the 718 Cayman GTS 4.0 (982): stock 394 hp, Stage 1 406 hp, Stage 2 418 hp, Stage 3 437 hp50037525012502k3k4k5k6k7khprpmS1 406S2 418S3 437
StockStage 1Stage 2Stage 3
StagePowerTorqueGain%
Stock394 hp310 lb-ft——
Stage 1406 hp319 lb-ft+12 hp+3%
Stage 2418 hp325 lb-ft+24 hp+6%
Stage 3437 hp335 lb-ft+43 hp+11%
What each stage includes
  1. Stage 1

    Software · 406 hp

    ECU recalibration of ignition, cam timing and throttle mapping. No hardware changes.

  2. Stage 2

    Software + bolt-ons · 418 hp

    Stage 1 plus an emissions-legal intake and cat-back exhaust, with a calibration written for them.

  3. Stage 3

    Intake package · 437 hp

    An upgraded intake plenum and further calibration, with the factory catalytic converters kept. Offered only where an emissions-legal kit exists for your car.

Estimates for planning, not measured results. Stock figures are Porsche's factory crank ratings. Your car's numbers come from its own baseline and after-logs.

Before we tune

The 4.0 flat-six
engine.

This naturally aspirated 4.0 flat-six revs to nearly 8,000 rpm and gains less than a turbo engine. Tuning focuses on throttle response, a sharper top end and sound. Cylinder deactivation and emissions strategies stay intact.

Every 718 Cayman GTS 4.0 tune starts with a consult and a baseline log of your car as it sits. We confirm its software version is supported before we quote, and you leave with after-logs and a signed job file. Read our step-by-step tuning guide.

LEGAL

Emissions-legal parts and software only. We keep the factory catalytic converters on every car. If a stage isn't available legally for your exact model and software, we tell you at the consult instead of fitting it.

718 Cayman GTS 4.0 questions
How much power does a Stage 1 tune add to a 718 Cayman GTS 4.0 (982)?

Our Stage 1 estimate for the 718 Cayman GTS 4.0 (982) is about +12 hp and +9 lb-ft, taking it from 394 hp to roughly 406 hp. Stage 2 is estimated at 418 hp and Stage 3 at 437 hp. Your car's real result is confirmed with before-and-after logs.

What should be checked on a 718 Cayman GTS 4.0 (982) before tuning?

This naturally aspirated 4.0 flat-six revs to nearly 8,000 rpm and gains less than a turbo engine. Tuning focuses on throttle response, a sharper top end and sound. Cylinder deactivation and emissions strategies stay intact.

Is a 718 Cayman GTS 4.0 (982) tune emissions-legal?

At Redline Exotics, yes. We use emissions-legal parts and software only and keep the factory catalytic converters. If a stage is not available legally for your 718 Cayman GTS 4.0's software version, we tell you before quoting.

Other 718 Cayman, Boxster & GT4 models

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