EMPI Deluxe 40mm HPMX Single Carburetor Kit — Dual-Port, Billet Air Cleaners & Linkage | VW Type 1 (44-7315-0)
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EMPI's HPMX is the bolt-on answer to Weber IDF performance at a friendlier price. This Deluxe 40mm single-carb kit (44-7315-0) feeds a dual-port Type 1 through one progressive-feel carb topped with billet aluminum air cleaners — a serious step up in breathing and looks.
Features
- EMPI 40mm HPMX carburetor (IDF-pattern)
- Billet aluminum air cleaners included
- Complete kit: carb, manifold, linkage, hardware
- Strong mid-range gains over a stock center-mount carb
- Direct IDF interchange for jets and tuning parts
Fitment
Confirmed fitment: 1966–1974 VW Beetle and Karmann Ghia and 1971–1980 Super Beetle with 1600cc dual-port engines. Complete single-carb bolt-on.
Not confirmed: Single-port engines require a different manifold; verify before ordering.
Specifications
| Carburetor | EMPI 40mm HPMX, IDF-pattern |
| Air Cleaners | Billet aluminum, included |
| Engine | Dual-port 1600cc Type 1 |
| Shipping Weight | 14.7 lb |
| Boxed Dimensions | 31 x 11 x 9 in |
Questions & Answers
Does this fit a dual-port 1600cc Beetle? Yes — it fits 1966–1974 Beetle/Ghia and 1971–1980 Super Beetle dual-port engines.
What is the part number? EMPI 44-7315-0.
Does it use Weber IDF jets? Yes — HPMX carbs are IDF-pattern and accept standard IDF tuning parts.
⚠️ WARNING (California Prop 65): This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Tuning & Setup Notes
A progressive or dual carburetor swap changes the fuel curve of your engine, so plan on a proper jetting check and idle/mixture sync once the kit is installed — every engine's compression, cam, and exhaust combination is a little different. We recommend a mechanical fuel pump or a regulated low-pressure electric pump sized for carburetor use, fresh fuel line rated for ethanol-blended gas, and a check of your linkage geometry before first start-up.
The Washburn's Metal Difference
Washburn's Metal is a family-run air-cooled VW & Porsche specialist shop — every part we sell is inspected before it ships, and our team is on hand by phone or email if you have a fitment question before or after you order. We stand behind what we sell: if a part doesn't fit as described, reach out and we'll make it right.