Performance Upgrades
Exhaust, Intake, Turbo & More — Built for Diesel 4WDs
Performance Upgrades — Salisbury, Adelaide
At Stealth Installs, we specialise in performance upgrades for diesel 4WDs, utes, and light commercial vehicles. Whether you're after more power for towing, better efficiency for long-range touring, or a full performance build — we have the experience and equipment to make it happen.
We take a transparent, honest approach to every job. We'll tell you exactly what a modification will and won't do for your vehicle before any work begins — so there are no surprises.
What We Do

Exhaust Systems
Upgrade your exhaust for improved flow, better power delivery, and a stronger exhaust note. We install performance cat-back and turbo-back systems suited to your vehicle and use case.
- Performance cat-back exhaust systems
- Turbo-back exhaust upgrades
- Improved engine efficiency
- Increased exhaust flow
- Smoother power delivery
- Better exhaust note

Intake System Upgrades
Let your diesel breathe with a performance intake upgrade. More air means more power and efficiency — ideal for towing, touring, or just getting the most out of your vehicle.
- Cold air and performance intake kits
- Increased air volume to the engine
- Improved turbo spool & response
- Better fuel economy
- Enhanced turbo sound
Intercooler Upgrades
Cooler, denser air means more power and better reliability under load. An intercooler upgrade is one of the best bang-for-buck performance modifications for turbo-diesel 4WDs.
- Upgraded intercooler cores
- Improved charge air cooling
- Reduced heat soak under load
- Greater power consistency
- Better performance when towing
Turbo Upgrades
Whether you need a rebuild, replacement, or full turbo upgrade, we have you covered. We work closely with Adelaide Turbo Services to deliver expert turbo solutions tailored to your vehicle.
- Turbo rebuilds & replacements
- Upgraded turbocharger fitment
- Improved boost & response
- Reduced turbo lag
- Greater power output
Transmission Coolers
A must-have for any 4WD that tows or works hard. Protect your transmission from heat damage with a dedicated external cooler — cheap peace of mind that pays for itself.
- Dedicated external transmission cooling
- Lower transmission oil temperatures
- Protection against catastrophic failure
- Extended transmission life
- Essential for towing vehicles
Heavy Duty Clutch Upgrades
Put the power down properly with a clutch upgrade that can handle the demands of a modified or heavily loaded vehicle. Essential for vehicles used for towing or with significant power upgrades.
- Heavy duty clutch kits
- Upgraded pressure plates & discs
- Suitable for towing & modified vehicles
- Improved clutch feel & engagement
- Longer service life under load
Brands We Work With
We source performance parts from trusted brands and work with specialist partners to ensure your build is done right.
Pacemaker
Australian-made headers and exhaust systems with a strong performance heritage
King Brown
Premium performance exhausts built tough for Australian conditions
Manta Performance
High-quality stainless steel exhaust systems for performance and diesel vehicles
High Performance Diesel
Specialist diesel performance parts and solutions
G-Turbo
Performance turbocharger upgrades and solutions
Adelaide Turbo Services
Our trusted turbo specialist partner — rebuilds, replacements, and full turbo upgrades
Frequently Asked Questions
This depends on your vehicle and the modification. In many cases, a properly fitted aftermarket exhaust won't void your warranty — however, we recommend checking with your dealer first. We'll always advise you on the best approach for your situation before we start any work.
Absolutely — in fact, many of these upgrades complement each other very well. An exhaust, intake, and diesel tune together can produce significantly better results than any single modification alone. We can help you plan a staged or full build depending on your budget and goals.
No. Removing or disabling a DPF on a road-registered vehicle breaches Australian emissions rules and can affect registration and insurance. We diagnose why a DPF is blocking, clean or repair, and tune the vehicle to run properly.
In most cases, yes. Performance hardware upgrades like exhausts, intakes, and intercoolers work best when paired with a proper diesel ECU tune. Without a tune, you may not be getting the full benefit of your modifications. We can handle both the hardware and the tune in-house.
The best approach is to give us a call or request a quote with your vehicle details and what you're trying to achieve — whether that's more towing grunt, better fuel economy, or outright performance. We'll give you honest advice on what will actually make a difference for your specific setup.
Request a Quote
Tell us about your vehicle and what you're looking to achieve — we'll get back to you with honest advice and a quote.
Request a quote
Ready to Unlock More Performance?
Call Stealth Installs today or request a quote — we're based in Salisbury, Adelaide.