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Crazy Carls | Tunnel Ram 12 Valve
$1,122.00
In stock — order before 11am AEST for same-day shipping
The Tunnel Ram 12V is a new patented intake for the 89-98 Dodge Cummins 12V diesel engine. Proudly made in the USA from aircraft quality billet aluminum and pressure tested to over 200psi, The Tunnel Ram is able to withstand high…
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Willys Workshop · Oxley & Warana, QLD
Easy returns within 14 days
12 Month Warranty
Tuning & Fitment Available
Fast AU-Wide Shipping
Easy returns within 14 days
12 month warranty
Description
Crazy Carls | Tunnel Ram 12 Valve
Another Crazy Carls original product!
The Tunnel Ram 12V is a new patented intake for the 89-98 Dodge Cummins 12V diesel engine. Proudly made in the USA from aircraft quality billet aluminum and pressure tested to over 200psi, The Tunnel Ram is able to withstand high boost pressures much better than the stock cast plate.
It’s unique patented design increases the airflow into the head, which is a known choke point, and distributes the air charge more uniformly between cylinders. What does that mean to you? Faster spool-up for your turbo, lower EGTs (especially in cylinders 1, 5 & 6 which are prone to run hot) and better MPGs.
How can it do this? basically all an engine is, is an air pump. The more air you can get into the engine, the more power it can potentially make.
The Tunnel Ram was built to be a direct bolt-in replacement for the stock plate and fits with all stock and most aftermarket performance intake/fueling accessories. The compound angles of The Tunnel Ram keep the factory location of the intercooler boot as well. No special tools needed and installation is a breeze, takes less than an hour to install on a cool engine.
*Please note that early non-intercooled engines will not fit. If your engine has an intake where the grid heater and plenum cover are one piece, you will need to use a delete spacer or later model grid heater to install. Don’t suffocate your Cummins any longer, let it breathe with The Tunnel Ram! Includes full 3pc (upper, lower, and base) gasket kit!
Shipped Australia-Wide
- Dispatched from within Australia with tracking.
- Same-day dispatch on in-stock orders placed before 11am AEST, Monday–Friday.
- Shipping is calculated at checkout based on size, weight and your delivery address.
- Estimated delivery 2–7 business days depending on your location.
Freight question? Call us on (07) 5619 7869.
Crazy Carls | Tunnel Ram 12 Valve Another Crazy Carls original product! The Tunnel Ram 12V is a new patented intake for the 89-98 Dodge Cummins 12V diesel engine.
Additional information
| Weight | 1.5 kg |
|---|---|
| Dimensions | 25 × 20 × 12 cm |
Double Duty Diesel — Manufacturer Pass-Through Warranty
Double Duty Diesel parts carry the original manufacturer's warranty:
- Fluidampr — Lifetime warranty on harmonic balancers
- MAHLE / Clevite — 12 months on bearings, gaskets, sealing components
- Dynomite Diesel — 12 months on stock-spec injectors and pumps; performance/race spec varies
- Power Driven Diesel — 12 months on turbos and bundled tuning kits
- Returns must be notified within 30 days of delivery
- Parts only — installation not covered
Workshop fitment available at Willys for transmissions, injectors and engine internals.
Read the full Double Duty Diesel warranty terms →
Warranty claims are coordinated through Willys Workshop. Email sales@willysworkshop.com.au or call Warana (07) 5619 7869 / Oxley (07) 3377 3421 with your order number and a description of the issue.
Questions, or need a fitment check?
Send your rego or VIN and our Australian-based team will manually confirm fitment before you buy.
Prefer to text your rego/VIN? 0485 885 957
