![Dinan Supplemental Ride Quality & Handling Kit | F97 X3 M · F98 X4 M | 3.0L Turbo I6 [S58] E52 Z8 Alpina 4.8L V8 [M62] IE's performance calibration removes these](https://cdn.shopify.com/s/files/1/0635/0032/1015/files/DinanSupplementalRideQuality_HandlingKitF97X3M_F98X4M3.0LTurboI6_S58.png?v=1742591179)
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IE's performance calibration removes these delays when dropping down multiple gears
5 fuel pump
Fits the stock catback as well as all aftermarket exhausts
3" inside diameter
These downpipes are the best bang for the buck mod available for your S63
Dinan Supplemental Ride Quality & Handling Kit | F97 X3 M · F98 X4 M | 3.0L Turbo I6 [S58] E52 Z8 Alpina 4.8L V8 [M62] IE's performance calibration removes theseTo fully enjoy Dinan performance spring sets we highly recommend pairing them up with our supplemental ride quality and handling kits. This additional kit includes tuned, progressive rate bump stops that maximize suspension travel on the lowered car for improved handling capabilities and ride quality when compared to just a spring set. By allowing for full compression travel within the spring the possibility of a sudden "bottoming out" is negated, a
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