N54 Bolt-On Elite Performance Bundle (Stepped HD Intercooler, Dual 3" SS304 Downpipes, Aluminum Charge Pipe & BOV Conversion Kit)
Full Kit (Intercooler+Charge Pipe+Down Pipe)
$658.00
Sale price
$658.00
Regular price
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N54 Bolt-On Elite Performance Bundle (Stepped HD Intercooler, Dual 3" SS304 Downpipes, Aluminum Charge Pipe & BOV Conversion Kit)
$658.00
Sale price
$658.00
Regular price
Unleash the full potential of your twin-turbocharged inline-six, eliminate brittle factory air paths, and keep your intake temperatures freezing cold with the 7FIGURES AUTOMOTIVE Stage 2+ Complete Performance Bundle. Custom-engineered strictly for the legendary BMW N54 3.0L Twin-Turbo engine platform (E82/E88 135i, E90/E91/E92/E93 335i/335xi, and E89 Z4 35i), this definitive direct bolt-on suite provides every major breathing upgrade needed to safely maximize your stage 2+ or custom E84/MHD tuning maps.
Core Engineering Advantages
Stepped High-Density Core Against Heat Soak
The restrictive factory tube-and-fin intercooler heat-soaks almost instantly under hard acceleration, forcing your ECU to aggressively pull ignition timing and drop torque to protect the engine. Our upgraded stepped bar-and-plate intercooler fills the deep empty cavity behind the lower bumper grille. By providing massive internal volume and a high-fin cooling matrix, it drops Intake Air Temperatures (IATs) significantly while minimizing boost pressure drop across the core.
100% SS304 TIG-Welded Dual 3" Catless Downpipes
Engineered specifically to handle the independent exhaust channels of the twin factory turbos, our heavy-duty downpipes are constructed entirely from premium SS304 stainless steel. Featuring clean 100% TIG welding and raw mandrel-bent curves, these pipes eliminate the dense factory catalytic converter cells to drop turbo backpressure to near zero. This gives you lightning-fast turbo spool-up times, immediate pedal feedback, and a raw, deeper exhaust note.
Burst-Proof T6061 Hard Charge Pipe & BOV System
The factory N54 plastic charge section is notorious for blowing apart, splitting down the middle, or throwing massive boost leaks under elevated stage 1 or stage 2 pressures. Our uniform T6061 aluminum hard pipe replaces it permanently and integrates a high-volume billet blow-off valve (BOV) connection. This dual-piston valve relieves intense excess system backpressure reliably when lifting off the throttle, emitting that iconic crisp decompression sound profile while preventing compressor surge.
Thermal Isolation Shielding
Included with this premium bundle are two high-density heat wrap rolls. Wrapping your stainless steel downpipe sections before installation traps intense exhaust thermal energy inside the piping walls, accelerating exhaust velocity while shielding sensitive engine bay electronics, subframe bushings, and your steering rack from radiant engine heat.
What’s Included & Technical Weights
Every element in this premium heavy-duty kit is carefully manufactured to optimize structural integrity under extreme high-boost loads while keeping unnecessary weight off your front end:
| Component | Material, Finish & Key Features | Approximate Net Weight |
|---|---|---|
| 1x HD Stepped Intercooler | High-Density Bar-and-Plate Core with Cast Aluminum Tanks | 22.5 lbs (10.2 kg) |
| 2x Catless Race Downpipes | 100% SS304 Stainless Steel, 3" Flow Path & Precision TIG Welded | 10.8 lbs (4.9 kg) |
| 1x High-Flow Charge Pipe | Mandrel-Bent Aircraft T6061 Aluminum (Stealth Wrinkle Black) | 3.4 lbs (1.5 kg) |
| 1x Performance Blow-Off Valve (BOV) | CNC Billet Aluminum Dual-Piston Assembly with Springs & O-Rings | 1.8 lbs (0.8 kg) |
| 2x Premium Heat Wrap Rolls | High-Temperature Volcano-Glass Fiber Protective Wrap | 1.2 lbs (0.5 kg) |
| Piping Accessories & Couplers | Heavy-Duty Multi-Ply Silicone Hoses, Flange Gaskets & Vacuum Lines | 2.1 lbs (1.0 kg) |
| Stainless Hardware Kit | Direct-Fit Coupling Adaptors, T-Bolts & Structural Mounting Clamps | 1.7 lbs (0.8 kg) |
| TOTAL HARDWARE WEIGHT | Ready-to-Install N54 Power-Breathing Suite | ~43.5 lbs (19.7 kg) |
Wholesale, Bulk OEM, and Sourcing Logistics
As an integrated manufacturing facility and global wholesale exporter located in China, 7FIGURES AUTOMOTIVE ships custom-configured performance parts safely across East Asia, Southeast Asia, and all major Western automotive markets.
- Private Label Branding: Custom laser logo etching on aluminum piping or custom-embossed silicone tooling options available.
- Consolidated Cargo Forwarding: Optimized tier pricing and packaging dimensions tailored to decrease sea and air container freight costs.
To explore direct-from-factory volume discount sheets or lock in an OEM production sample schedule for your shop or e-commerce storefront, please message our trade desk.