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Titanium Symphony for the Giulia Quadrifoglio: Akrapovic S-AR/TI/1H-E Evolution Line Cat-Back
The Akrapovic S-AR/TI/1H-E Evolution Line Cat-Back exhaust system with titanium link pipes transforms the 2017 to 2020 Alfa Romeo Giulia Quadrifoglio into a track-ready Italian sports sedan with an authoritative exhaust note to match its 505-horsepower twin-turbo V6. Engineered at Akrapovic's Slovenia facility to aerospace tolerances, this combined system pairs the S-AR/TI/1H titanium cat-back with the E-AR/T/1 link pipes for a complete solution that sheds 12.3 kg versus the OEM exhaust. The result is a system weighing just 10.7 kg that unlocks 12 additional kilowatts at 6,950 rpm and 12.6 additional Nm of torque at 2,850 rpm, all without sacrificing drivability on the street.
Key Features
- Full Evolution Line Cat-Back system combining S-AR/TI/1H cat-back and E-AR/T/1 titanium link pipes in one SKU
- Grade-1 titanium construction throughout for maximum weight reduction and corrosion resistance
- System weight of 10.7 kg versus approximately 23 kg OEM, a saving of over 12 kg
- Measured power gain of 12 kW at 6,950 rpm on Akrapovic's test Giulia Quadrifoglio
- Measured torque gain of 12.6 Nm at 2,850 rpm for stronger mid-range pull
- Hand-crafted precision TIG welds with mirror-polished titanium exhaust tips
- Street-legal design retaining OEM catalyst locations for emissions compliance
- Direct bolt-on fitment with no cutting, welding, or permanent modifications required
- Compatible with Alfa Romeo's DNA drive-mode selector including Race mode
- Developed and validated on Alfa Romeo's Nurburgring-honed Quadrifoglio platform
Fitment
| Year Range | Make | Model | Trim |
|---|---|---|---|
| 2017-2020 | Alfa Romeo | Giulia | Quadrifoglio |
Specifications
| Detail | Value |
|---|---|
| Part Number (MPN) | S-AR/TI/1H-E |
| System Type | Evolution Line Cat-Back with Link Pipes |
| Material | Grade-1 Titanium |
| System Weight | 10.7 kg |
| OEM Weight (approx.) | ~23 kg |
| Weight Savings | ~12.3 kg |
| Peak Power Gain | +12 kW at 6,950 rpm |
| Peak Torque Gain | +12.6 Nm at 2,850 rpm |
| Compatible Engine | 2.9L Twin-Turbo V6 (Busso Biturbo) |
| Drive Modes | Compatible with DNA (Dynamic, Natural, Advanced Efficiency, Race) |
| Tip Finish | Brushed Titanium |
| Included Sub-Systems | S-AR/TI/1H Cat-Back + E-AR/T/1 Link Pipes |
| Brand | Akrapovic |
| Country of Manufacture | Slovenia |
| UPC | N/A |
What's Included
- Akrapovic S-AR/TI/1H titanium cat-back exhaust system
- Akrapovic E-AR/T/1 titanium link pipes
- Titanium exhaust tips (brushed finish)
- All required mounting hardware and clamps
- Akrapovic installation instructions
Frequently Asked Questions
What vehicles does the Akrapovic S-AR/TI/1H-E fit?The S-AR/TI/1H-E is engineered exclusively for the 2017, 2018, 2019, and 2020 Alfa Romeo Giulia Quadrifoglio equipped with the 2.9L Twin-Turbo V6 engine. It does not fit the standard Giulia Ti, Sport, or other trim levels.
What is the difference between the S-AR/TI/1H and the S-AR/TI/1H-E?The S-AR/TI/1H is the cat-back exhaust system alone. The S-AR/TI/1H-E bundles the cat-back system together with the E-AR/T/1 titanium link pipes, giving you a complete rear exhaust solution in a single purchase. The -E suffix denotes the link pipe bundle.
How much weight does the S-AR/TI/1H-E save over the OEM exhaust?Akrapovic's Grade-1 titanium construction brings the complete system weight down to 10.7 kg compared to approximately 23 kg for the factory exhaust, saving over 12 kg of unsprung rear mass. This reduction improves acceleration, handling balance, and the car's overall power-to-weight ratio.
Does the Akrapovic Evolution Line affect the Giulia's warranty?Aftermarket exhaust fitment may affect portions of your powertrain warranty. We recommend consulting your Alfa Romeo dealer before installation. Because this system retains the OEM catalyst locations and is a bolt-on design, it is less likely to trigger warranty concerns than a full decat system, but policies vary by dealer and region.
Will the Akrapovic S-AR/TI/1H-E pass emissions testing?This Evolution Line system is a cat-back design that retains the factory catalytic converters, keeping OEM catalyst function intact. It is not a decat or test-pipe system. However, exhaust regulations vary by state and jurisdiction, so we recommend confirming local requirements before purchase.
How does the sound character change with the S-AR/TI/1H-E installed?Akrapovic designed this system to produce a deep, layered titanium exhaust note that amplifies the Quadrifoglio's biturbo V6 soundtrack without adding rasp or drone during highway cruising. In Race DNA mode the volume increases noticeably, while Dynamic and Natural modes retain a refined daily-driver character. The titanium construction gives the tone a distinct higher-frequency resonance compared to stainless steel systems.
Does this exhaust work with the Alfa Romeo Quadrifoglio's active exhaust valve?The Akrapovic S-AR/TI/1H-E is designed to integrate with the Giulia Quadrifoglio's factory active exhaust system and DNA mode selector. Volume and tone adjust through the stock electronic valve control, so Race mode will provide maximum volume and Dynamic mode provides a sportier character versus Natural mode.
What are the measured performance gains for the S-AR/TI/1H-E?Akrapovic's own dyno testing on a standard 2017-2020 Alfa Romeo Giulia Quadrifoglio recorded a gain of 12 kW (approximately 16 hp) at 6,950 rpm and 12.6 Nm (approximately 9.3 lb-ft) of torque at 2,850 rpm compared to the OEM exhaust. Results may vary depending on altitude, ambient conditions, and individual vehicle state of tune.
Is professional installation recommended for the S-AR/TI/1H-E?While the system is a bolt-on design that does not require cutting or welding, professional installation is strongly recommended. A shop with a lift and proper exhaust tools can ensure the manifold flange gaskets seat correctly, all clamps are torqued to spec, and the system hangs without fouling suspension or bodywork components.
How does titanium compare to stainless steel for exhaust systems?Titanium is significantly lighter than stainless steel at comparable wall thicknesses, which is why Akrapovic achieves such dramatic weight savings. Titanium also has excellent heat resistance, develops a distinctive blued patina with use, and is highly corrosion-resistant. The trade-off is cost; titanium exhaust systems carry a premium over stainless alternatives but are the choice for maximum weight reduction on performance applications like the Giulia Quadrifoglio.
Installation Overview
- Allow the factory exhaust to cool completely before beginning work.
- Raise and safely support the vehicle on a lift or quality jack stands with the vehicle in park and wheels chocked.
- Spray all OEM exhaust fasteners, flanges, and hangers with penetrating lubricant and allow to soak for a minimum of 15 minutes.
- Disconnect the OEM exhaust at the catalytic converter outlet flanges at the front of the cat-back section.
- Release all factory rubber exhaust hangers and lower the OEM cat-back and associated link pipes from the vehicle.
- Clean the flange mating surfaces thoroughly and install the supplied gaskets.
- Begin assembly of the Akrapovic E-AR/T/1 link pipes, connecting them to the catalytic converter outlet flanges with the supplied hardware. Hand-tighten only at this stage.
- Connect the S-AR/TI/1H cat-back section to the link pipes and route all rubber hangers onto their mounting pegs, ensuring the system hangs freely without contact with the chassis or heat shields.
- Verify clearance throughout the system, particularly around the rear subframe and suspension components.
- Torque all flange fasteners to the specifications provided in Akrapovic's installation sheet, working from front to rear.
- Start the engine and inspect all joints for leaks; re-torque after the system reaches full operating temperature and has cooled once (heat cycling seats gaskets properly).
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