Spool Performance IFX800 Upgraded Turbocharger | Gen 1 B58

So you’ve reached the stage of B58 ownership where the stock turbo is politely suggesting you calm down with the boost.

Unfortunately for it, you won’t.

The Spool Performance IFX800 is the upgrade for people who looked at the factory turbo and said: “That’s cute, but what if it made actual power?”

This turbo is designed as a direct bolt-on upgrade for Gen 1 B58 engines, meaning it installs where the stock turbo lived before it retired due to excessive abuse. It keeps the OEM drivability you like while giving your engine enough airflow to support builds that make the dyno operator double-check the graph.

In other words:

• Your stock turbo = great for commuting.

• The IFX800 = great for making the tires reconsider their life choices.

Best part? It doesn’t require sending in your stock turbo or building a full race car just to make power. Just bolt it on and continue your irresponsible relationship with boost pressure.

Real Specs (Actual Performance Stuff)

• Rated for up to ~800 HP capability

• Billet turbine wheel for improved spool and efficiency

• Direct bolt-on upgrade for Gen 1 B58 turbo location

• Maintains OEM drivability and functionality

• No core exchange required (keep your stock turbo)

• Designed for high-power street and track builds

• 1-year manufacturer warranty

Ideal For

• BMW B58 Gen 1 builds

• FBO + upgraded fueling setups

• Big boost tuning

• People who keep saying “this is the last mod”