Dinan Supplemental Ride Quality & Handling Kit | F30 · F31 · F34 330i · 340i · F32 · F33 · F36 428i · 430i · 435i E60 · E61 525i 2.5L I6 [M54] 0 TSI range of vehicles

0 TSI range of vehicles while retaining near like OE fitment

Carbon fiber allows our engineers to create complex shapes and angles to maximize internal volume while maintaining high resistance to heat

Our straight-through brushed-finished stainless-steel piping give the exhaust note an aggressive growl without any restrictions

The IE ultimate girdle kit will help protect your race engine from severe main bearing wear or even a broken crank

See a visual list of the programs installed on the ECU

Dinan Supplemental Ride Quality & Handling Kit | F30 · F31 · F34 330i · 340i · F32 · F33 · F36 428i · 430i · 435i E60 · E61 525i 2.5L I6 [M54] 0 TSI range of vehiclesTo 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