Lots of fun was had yesterday successfully test fitting a 2.1 KB to an X308 XJR.

The plenum and rear elbow are much less restrictive compared to on the later AJ33S in the X350 and STR, and we are expecting around 450rwhp, as others have achieved with this supercharger on the 4.0 supercharged cars.

This kit will also fit the AJ27S in the X100 XKR for anyone seeking a lot of extra power.

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