This spacer kit is for Audi B8 S4/S5s with the 3.0L Supercharged engine. It raises the SC up 3/4" of an inch. This clears (barely) the hood with an APR Ultracharger Throttle Body and pipe.

The kit consists of two spacers with o-ring seals, longer studs/washers/nuts to replace the stock bolts, and an adapter to lengthen the oil separator connection to the bottom of the SC.

A belt is not included as there are too many configurations with different sized pulleys. For reference, our test vehicle runs 193/57.75 pulleys and with the spacers uses a 53.6" (3160mm) long belt. A 51.6" (1310mm) belt is used with both stock pulleys and spacers. 

While the supercharger is off, it is a great time to clean the intake valves with this kit.

Installation takes a few hours as most (shorter once one has had the SC off as many times as us). The spacers are placed on top of the factory gasket seals and bolted down as shown with the provided studs. The SC itself seals against the o-rings provided. We recommend a little white lithium grease when installing any o-rings. Also place the separator extension on before reinstalling the SC.

Insulating spacers are a proven performance item as they block some of the extreme heat generated by the engine from the intake plenum/supercharger/throttle body to help provide a cooler and more consistent air temperature, which result in better power. All of our spacers are now made out of Garolite G-11 (for superior chemical resistance and heat resistance / insulation), so the color will be light green as shipped. Beware of cheaper spacers than may not have withstand the extreme conditions under the hood of modern vehicles.