![Dinan Supplemental Ride Quality & Handling Kit | F97 X3 M · F98 X4 M | 3.0L Turbo I6 [S58] E52 Z8 Alpina 4.8L V8 [M62] These downpipes are the best](https://cdn.shopify.com/s/files/1/0635/0032/1015/files/DinanSupplementalRideQuality_HandlingKitF97X3M_F98X4M3.0LTurboI6_S58.png?v=1742591179)
Pay in 4 interest-free payments of $35.99 Learn more
Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
These downpipes are the best bang for the buck mod available for your S63
Precision Raceworks MPI Port Injection Fuel Rail
Fits the stock catback as well as all aftermarket exhausts
The result is a system that incorporates larger 76mm tubing (vs 70mm stock) and allows freer flow through the entirety of the system but specifically to both outer pipes when the enlarged valves are open
present in EA888 and EA888
Dinan Supplemental Ride Quality & Handling Kit | F97 X3 M · F98 X4 M | 3.0L Turbo I6 [S58] E52 Z8 Alpina 4.8L V8 [M62] These downpipes are the bestTo 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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