Porsche 911 991 Turbo S Performance Parts & Tuning Mods

Top Brands For Porsche 911 991 Turbo S Mods

The Porsche 911 991 Turbo S is very well supported in the tuning world, with a wide range of aftermarket specialists producing high quality performance parts, styling upgrades and motorsport grade hardware. Below is a selection of leading brands trusted by owners for serious power, handling and braking mods.

Exterior Styling Upgrades for Porsche 911 991 Turbo S

To enhance the already purposeful look of your Porsche 911 991 Turbo S, you can choose from a range of exterior styling upgrades including body kits, spoilers, splitters, rear diffusers, custom grilles and other visual enhancements, helping you create a more unique, aggressive and track-inspired presence on the road.

Handling, Suspension & Dynamics Upgrades

The Porsche 911 991 Turbo S is brutally fast out of the box, but there is still room to sharpen the chassis and steering feel. Start with tyres and brakes, as quality performance rubber and uprated pads give the biggest real-world gain in grip and confidence. Stickier road or track-focused tyres reduce understeer on turn-in, while performance pads, braided lines and high-temp fluid keep braking consistent in repeated hard stops. If you are pushing harder, a properly matched big brake kit can add further stability and control. From there, look at suspension tuning. Lowering springs or height-adjustable coilovers bring the centre of gravity down and cut body roll, helping the 991 Turbo S feel more agile without ruining road manners when set up correctly. Stiffer anti-roll bars, fresh uprated bushes and a front strut brace help tame that rear-engined weight transfer and give a more connected front end. Done in stages, these handling mods make the 911 feel more responsive, more planted and a lot more fun through fast bends.

Frequently Asked Questions about the Porsche 911 991 Turbo S

What are the best first performance mods for a Porsche 911 991 Turbo S?

The most common first upgrades on a 991 Turbo S are an ECU remap, high flow panel filters or intake kit, and a performance exhaust system. These work well together, as the remap can take advantage of the improved breathing to give noticeable gains in horsepower and torque without spoiling everyday drivability.

If you use the car hard, it is also worth looking at better brake pads and high performance tyres early on. The factory setup is strong, but a more track focused pad compound and a quality ultra high performance tyre give you more confidence when you start exploiting extra power.

How much power can I safely gain from tuning my 991 Turbo S?

With a sensible stage 1 ECU tune on a healthy Porsche 911 991 Turbo S, you can typically see a significant bump in power and torque while still staying within comfortable limits for the stock turbos, fuel system and drivetrain. Exact figures depend on fuel quality, supporting mods and the condition of the car, so we always tune with reliability in mind rather than chasing a headline number.

Going to a more serious stage 2 or hybrid turbo setup can unlock much more performance, but at that point you are into upgraded intercoolers, exhaust, intake and potentially clutch or transmission tweaks. It is all about matching your power goals to how you actually use the car, road, fast road or regular track work.

Will an ECU remap or performance tuning affect reliability?

A well developed remap that respects factory safety margins should not harm a healthy 991 Turbo S when it is driven and maintained properly. We recommend regular oil changes, good quality fuel, and keeping an eye on coolant and oil temperatures if you are enjoying spirited driving or track days.

Problems tend to arise when cars are overboosted, run poor fuel, or stacked with parts that are not tuned to work together. Sticking with proven performance parts, proper cooling upgrades such as improved intercoolers, and conservative boost levels is the key to keeping your Turbo S strong and reliable.

What supporting mods do I need for a stage 2 991 Turbo S build?

For a typical stage 2 setup on a Porsche 911 991 Turbo S, most owners pair the remap with high flow sports cats or a turbo back exhaust, uprated intercoolers, and upgraded intakes or panel filters. These help control intake temps, reduce back pressure and let the turbos work more efficiently.

If you plan to use launch control often or run sticky tyres, it can also be worth looking at transmission servicing and, on higher power builds, clutch or PDK hardware upgrades. Brakes and suspension tuning are just as important, so consider better pads, fluid and either upgraded dampers or quality coilovers to keep the chassis in balance with the extra power.

What wheel and tyre sizes work well on a 991 Turbo S?

The standard Porsche 911 991 Turbo S wheel and tyre setup is well chosen, but many owners move to lightweight forged rims combined with high performance tyres for better response and grip. Sticking close to OEM overall diameters keeps the PDK and traction systems happy, so most upgrades focus on width, offset and weight rather than huge size changes.

If you are going more aggressive with fitment, we can advise on offsets, spacers and arch clearance to avoid rubbing issues. Remember that a wider wheel and tyre combo can transform traction, but it should be matched with appropriate alignment settings so you do not chew through expensive rubber.

How much does it cost to tune a Porsche 991 Turbo S?

Costs vary a lot depending on how far you want to go. A basic stage 1 ECU tune on a 991 Turbo S is usually one of the best value upgrades, giving a clear performance gain for a relatively modest outlay compared to the price of the car. Adding an intake and cat back exhaust will increase the budget but also improve sound and response.

A full stage 2 or hybrid turbo package, with intercoolers, turbo back exhaust, fuelling and potential drivetrain work, will naturally be a bigger investment. The best approach is to plan a clear upgrade path and budget for supporting mods such as brakes and suspension at the same time, rather than just chasing peak horsepower.

Will performance mods and tuning affect my Porsche warranty or resale value?

Any ECU remap or hardware change has the potential to affect a Porsche extended warranty or dealer goodwill, particularly on a 991 Turbo S that is still under official cover. It is worth checking your warranty terms before modifying and keeping all original parts so you can return the car to stock if needed.

In terms of resale, well chosen, branded performance parts and a sensible tuning package can be attractive to enthusiasts, especially when backed up with service history and dyno or calibration documentation. However, heavily modified cars appeal to a smaller audience, so if future value is a priority, focus on reversible upgrades and tasteful, proven mods.

Porsche 911 991 Turbo S Final Thoughts

The Porsche 911 991 Turbo S is already a seriously capable bit of kit, with huge straight line pace, all wheel drive traction and that everyday refinement that makes it easy to live with. Out of the box it is rapid, comfortable and very polished, which is exactly why so many owners start looking at tuning parts to add a bit more edge. The core strengths are there, strong engine, clever chassis and impressive electronics, so the right performance upgrades simply build on a very solid base. Think of it as unlocking potential that Porsche left on the table for reliability, emissions and mass market comfort. On the performance side, a well matched intake, exhaust, intercooler and ECU calibration can bring noticeable gains without abusing the hardware. The stock car can see high intake temps when driven hard, so better cooling and more efficient turbo plumbing really help consistency on spirited road drives or track days. The PDK and drivetrain are tough, but if you chase big power it is sensible to look at clutches and supporting hardware to keep it all reliable. Done properly, you end up with a sharper, stronger Turbo S that still behaves itself on the daily commute. Chassis and styling mods then let you dial in the way the 991 feels and looks. The standard suspension is on the soft side for serious track work and can let the car push wide when fully loaded in corners, so coilovers, geometry tweaks and uprated anti roll bars make a big difference to grip and confidence. Brake pads, lines and fluid upgrades are popular too, keeping the pedal consistent when the pace is hot. Add in carefully chosen wheels, aero pieces and interior touches, and you have a personalised 911 Turbo S that fits how you drive, still keeps its Porsche reliability and gives you that extra buzz every time you grab the keys.