M20 2.5L Mahle Piston Set that spring may allow the

that spring may allow the rocker to move in relation to the valve stem (sometimes enough to walk off the valve stem) which quickly results in a broken rocker arm

Adjustable trigger lever allows you to adjust home signal to any point you want or your aftermarket ECU requires

Set of 24 high performance Supertech valve guides for intake and exhaust valves on S54 engines

New valve cover studs

M20 2.5L Mahle Piston Set that spring may allow theMahle 84. 5mm (oversize) piston set with 8. 8: 1 compression. This is a stock replacement for the M20B25 engine. Piston sets include piston rings, wrist pins, and wrist pin clips. These are the same pistons we use in house for our stock M20B25 engine builds and SpecE30 engine builds.