EMPI 28mm Main Venturi for HPMX & Weber 44 IDF — low-rpm signal | Porsche 356/912/914 1948-1976 (43-5625-0)

A small, low-revving flat-four makes its best power on a strong intake signal, not a cavernous throat. This tight 28mm main venturi sharpens that signal in a 40/44 HPMX or 44 IDF, waking throttle response low in the rev range.

• Genuine EMPI 28mm main venturi for 40/44 HPMX and Weber 44 IDF
• Tight 28mm bore boosts low-rpm signal and drivability
• Sets the carb's primary fuel and airflow curve
• Press-fit replacement for a worn or mismatched venturi
• Sold individually; run matched sizes across both carbs

Fitment: Fits EMPI 40/44 HPMX and Weber 44 IDF carburetors on Porsche 912 (1965-1976), 914 (1970-1976) and 356 through 356SC (1948-1965). If you are unsure this fits your car, contact us with your year and model before ordering.

Specifications:

• Part number: 43-5625-0
• Manufacturer: EMPI
• Boxed dimensions: 2 x 1 x 1 in
• Shipping weight: 0.3 lb

Questions & Answers

Does this fit my Porsche? Yes, it fits any air-cooled Porsche or VW running an EMPI 40/44 HPMX or Weber 44 IDF carburetor.

What is this part? The main venturi meters the carb's primary airflow and fuel signal; 28mm is a small size that strengthens low-rpm response.

What is the part number? Genuine EMPI part number 43-5625-0, sized 28mm for 40/44 HPMX and 44 IDF.

Are you an authorized dealer? Yes — Washburn's Metal is an authorized EMPI dealer, so this is genuine EMPI, not a copy.

How does it ship? ships standard ground from our Orange, California shop

⚠ California Proposition 65 Warning: This product can expose you to chemicals 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.