Rennsport Factory



Mercedes M104-990 24V 2.8-3.7L W124/R129/W202/W210 Individual Throttle Body set


ITB throttle body kit for Mercedes M104-990 24V 2.8-3.7L W124/R129/W202/W210


Mercedes M104-990 24V 2.8-3.7L W124/R129/W202/W210 Individual Throttle Body set

• Cast inlet manifold and ITBs
• Port Injectors and fuel rail included
• Cast curved and tapered extensions
• Spun trumpets
• Optional secondary injection system
• Optional carbon plenum and W201/W124/R129/W202/W210 specific airbox
• Optional front intake airbox, trumpet and filter system

This is our cast ITB kit for the M104-990 round port engine. Usually found in the W124/C124/S124 320E/320CE/320TE, 280E/280CE/280TE, R129 280SL 320SL, W140 and others.

The manifold is cast and has been designed with a port firing twin cone injector, the kit is supplied with a specific modern injector that fires fuel directly at the valve. The middle injector position is available to be used but will be blanked off for most kits and there is an optional secondary injection set with air guided injectors fitted to the extensions to allow higher RPM engines time to atomise the fuel before it gets to the port.

There are 6 cast individual throttle bodies and 6 curved and tapered extensions. The curvature of this kit improves the length available for the inlet tract. The trumpets can be purchased in various lengths up to 60mm to cater for most engine variations.

The optional carbon fiber plenum is our large volume 6 cylinder unit coming in at around 20 litres in capacity. This will be fed by a front intake system with airbox, filter and if space is available an intake trumpet that will sit by the radiator. This will be car specific and available for most models the car came in.

The kit includes a cast manifold, 6x cast ITBs with linkages, 6x Bosch EV12 port injectors, fuel rail, 6x cast curved and tapered extensions and 6x spun trumpets. Carbon plenum and intake system pricing will be confirmed asap.

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