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Product Description

EJ25 Forged Mahle 4032 Fast Road 450 BHP Pistons 100mm Subaru Impreza

These Mahle pistons are tried and tested by some serious engine builders pushing the limits of reliability and have reached over 500 bhp with this exact EJ25 turbo piston.

The Mahle brand piston is well known for its piston technology and in this case they have used their knowledge from formula 1 engine technology to produce a piston with some unique features.
Forged from a high 4032 silicon alloy for reduced expansion meaning only a 2 thou running clearance is required for normal road use making them very quiet and smooth in the their bores.

Very quiet for road use.
Low friction wasted skirt and coated for high rpm reliability.

Pressure balance groove below top ring designed to balance the pressure on the top compression ring and there for restricting blow by and power loss.
Very resistant to ring land problems unlike the standard factory piston.

Forced gudgeon pin lubrication via the oil ring drain holes--keeping the pin well oiled and cooled--this is essential for major bhp.
Mahle pistons are the ones to trust for quality and a specification that is second to none.

These forged Mahle 4032 pistons will support upto 500 bhp depending on the crank-rods and head bolts used and more important the fueling and ignition timing etc.

If you want 4 forged pistons with rings and pins that are ready to fit to standard length rods and standard stroke crankshaft then these are perfect.

PISTON SIZE 100 mm
22cc Bowl Volume
1.209" Or 30.71mm Compression Height
23mm High Quality German Steel Piston Pins
Mahle Top Quality Piston Rings

Specifications

Brand
Mahle
Product Code
WRX209937I22

Customer Reviews

Subaru EJ25 Forged Mahle 4032 Fast Road 450 BHP Pistons 100mm Impreza WRX STi

Product Code WRX209937I22