The CSF No Limit billet charge-air manifold relocates the charge cooler out of the intake manifold, removing the core-size limitation of every drop-in B58 cooler and freeing builders to run a much larger air-to-air or air-to-water intercooler. Fully CNC-machined from 6061 billet aluminum with internal velocity stacks and O-ring sealed construction rated beyond 100 psi, it is engineered to support 1500+ horsepower builds. A 77mm throttle-body flange, top-feed port injection configurable for 6 or 12 injectors, and modular ports for supplemental nitrous or methanol injection make it a competition-focused foundation for high-power B58 setups, and an integrated thermal-rejection spacer helps lower intake manifold temperatures.
| Type | Billet charge-air intake manifold (CSF No Limit) |
| Engine | BMW / Toyota B58 turbocharged inline-six (plus B58 engine swaps) |
| Material | CNC-machined 6061 billet aluminum, internal velocity stacks |
| Throttle Body Flange | 77mm (S55-compatible) |
| Fuel Delivery | Top-feed port injection, 6 or 12 injector configuration; includes one 6-injector fuel rail |
| Pressure Rating | O-ring sealed, rated beyond 100 psi (7 bar) |
| Power Support | 1500+ hp builds |
| Quantity | 1 (includes one fuel rail) |
| Part Number | 8401 |
| Warranty | 2-year limited (void if disassembled without CSF consent) |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2022-2026 | BMW | M240i | G42 |
| 2019-2026 | BMW | M340i | G20 |
| 2021-2026 | BMW | M440i | G22 |
| 2019-2026 | BMW | Z4 M40i | G29 |
| 2020-2026 | Toyota | GR Supra | 3.0L |
Shipping: In-stock orders placed before 4 PM EST ship the same day, with standard, expedited, and overnight options available at checkout. Backordered items ship as soon as our distributor restocks — contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
