Alfa Romeo 8C Competizione / 8C Spider: the exhaust of a legend, the complete guide

The 8C Competizione's V8: a Ferrari in Alfa clothing

Your 8C Competizione is one of the rarest and most desirable cars in Alfa Romeo's modern history: 500 coupés built, a 4.7 V8 of Ferrari-Maserati origin, and a sound unanimously ranked among the most beautiful ever recorded. On a car of this standing, any work must live up to its heritage.

Our exhaust system is designed in that spirit: freeing up the V8's upper register, saving weight, and fully respecting the original character. For an 8C project, we invite you to write to us: a car of this calibre deserves a dedicated conversation.

What makes up the exhaust on your Alfa Romeo 8C Competizione / 8C Spider V8

An exhaust system is best understood in two parts. Here is what each one does, and what Rog replaces.

Your Alfa Romeo 8C Competizione / 8C Spider V8 in figures

An exhaust system is judged first by ear and on the scales. The extra horsepower comes from an ECU remap.

Published factory figures.

The Rog exhaust works with or without an ECU remap. To get the full potential out of your Alfa Romeo 8C Competizione / 8C Spider V8, we advise taking it to an approved tuning centre afterwards.

On an 8C, the figures are not the point: the car is rolling heritage. The exhaust system brings weight savings, freer breathing and a whole new dimension of sound. Every 8C project is handled individually: write to us and let us talk it through, enthusiast to enthusiast.

Configuring your exhaust, step by step

4 choices, in the same order as the product page configurator.

1. 1

   Step 1 of 4: Material: stainless steel or titanium

   Titanium costs more than stainless steel; the price of each version is shown on the product page, in your currency.

   304 stainless steel

   Weight

   Baseline

   Sound

   Full and rounded

   The safe bet: strong, corrosion-proof, with a full, rounded sound. The best value for money.

   Titanium

   Weight

   Around 40% lighter

   Sound

   Metallic, crystal-clear

   It makes the exhaust around 40% lighter for the same design. Its note is more metallic and clearer higher up the rev range, and its finish ranges from brushed to blued.

   No worries on durability: 304 stainless steel shrugs off winter road salt and titanium does not rust. Stainless steel or titanium: what really changes.

2. 2

   Step 2 of 4: Front section: manifolds and catalytic converter

   Optional: the manifolds on your Alfa Romeo 8C Competizione / 8C Spider V8, with the catalytic converter. Each option is placed on our sound scale of 0 to 10, valves open, with the factory exhaust at 3.

   Cat-back only

   Included

   7/10

   Factory emissions control

   The factory front section stays in place. It is already a complete transformation, and the choice of many of our customers.

   200-cell sports catalytic converter

   8/10

   Road use and inspection

   More flow, emissions control retained: the right option for road use.

   100-cell sports catalytic converter

   9/10

   Inspection: depends on local rules

   More open than the 200-cell: the sound hardens at high revs and emissions control is reduced.

   Decat

   10/10

   Track use

   Flow with no filter at all: the rawest sound and the sharpest response.

   Sound intensity, on a scale of 0 to 10

   1. 10/10Decat manifolds + Rog cat-back
   2. 9/10100-cell sports catalytic converter + Rog cat-back
   3. 8/10200-cell sports catalytic converter + Rog cat-back
   4. 7/10Rog cat-back only, factory catalytic converter retained
   5. 3/10Factory exhaust, for comparison

   Valves open. With the valves closed, every configuration becomes discreet again.

   What about the engine warning light? With a sports cat, it can come on with some engines: the sensor placed after the catalytic converter measures a different level of emissions control from the original. It is not a mechanical failure, but a warning light should never be masked or cleared without dealing with its cause: the right answer is a catalytic converter suited to the engine, with a map by a tuner who takes it into account. The decat version, for track use only, almost always triggers it. If this happens to you, write to us and we will point you in the right direction. Passing vehicle inspection with a sports exhaust.

3. 3

   Step 3 of 4: Valves: Rog remote or factory control

   Two ways to control the valves on your Alfa Romeo 8C Competizione / 8C Spider V8.

   Rog remote

   

   A discreet control unit in the boot and a two-button remote: you open and close whenever you like, independently of the drive modes. For fitting, we support you by email.

   Factory control

   • Only for vehicles fitted with factory valves
   • Controlled by the drive modes

   For vehicles fitted with factory valves: the exhaust connects to their control and the drive modes stay in charge, with no extra control unit.

   At 130 km/h, many sports exhausts drone. Here, with the valves closed, the exhaust flows through the silencer and stays composed when cruising; open, it makes itself heard when you choose. More about exhaust drone.

4. 4

   Step 4 of 4: Tips: the visual signature

   Match the tips to the style of your Alfa Romeo 8C Competizione / 8C Spider V8, understated or bold. A particular finish in mind? Send us a photo and we will look at it together.

   • Chrome
   • Gloss black
   • Blued titanium

   

The Rog sound signature on the 8C's V8

The 8C's V8 already has one of the most beautiful voices ever recorded: our job is to free up its upper register while fully respecting its character. The result is best enjoyed high in the revs, and it cannot be described: it has to be heard. The valves keep things discreet when discretion is called for.

From order to fitting

1. Configuration

   You configure the exhaust and enter the VIN from box E of your registration document or from the base of the windscreen.

2. Check

   Your VIN is checked before any manufacturing begins.

3. Manufacturing

   The exhaust is produced to order, for your vehicle.

4. Delivery

   Free, insured parcel, tracking number from dispatch.

5. Fitting

   Around two hours in the workshop, with no welding or cutting.

20 working days from order confirmation to delivery

Warranty

3 years, parts and workmanship, from the date of purchase

Payment

Card, PayPal or bank transfer

Installation

At the garage of your choice

Is your Alfa Romeo 8C Competizione / 8C Spider V8 still under the manufacturer's warranty? In Europe, the manufacturer cannot refuse cover simply because a part from another brand has been fitted: it is up to the manufacturer to prove that the fault comes from that part. Our article on the manufacturer's warranty.

Our recommendations for your Alfa Romeo 8C Competizione / 8C Spider V8

• Daily driving

  • Stainless
  • Cat-back only
  • Rog remote

  Your Alfa Romeo 8C Competizione / 8C Spider V8 stays easy to live with, the factory emissions control is retained, and you open the valves whenever you decide.

  View this configuration

• Fast road

  • Titanium
  • 200-cell manifolds
  • ECU remap

  The best of both worlds: character and breathing, with emissions control retained.

  View this configuration

• Track

  • Titanium
  • Decat manifolds
  • Stage 2

  The most extreme configuration, for track use only.

  View this configuration

Every Alfa Romeo 8C Competizione / 8C Spider V8 has its own story and its own use: if none of these profiles sounds like you, let's talk.

Alfa Romeo 8C Competizione / 8C Spider V8: your questions

Further reading

• All Alfa Romeo exhaust systems
• Alfa Romeo 4C 960
• Alfa Romeo Giulia 2.0 Turbo
• Alfa Romeo Giulia Quadrifoglio 2.9 V6
• Weight saving: the hidden advantage of a performance exhaust
• How to pass vehicle inspection with a modified exhaust
• Stainless steel or titanium: what really changes
• The 28 brands we cover