HKS Super Sequential Valve 4 (SSQV4) f03 it is now part of

it is now part of the new revised diverter valve charge pipe

We were the first manufacturer to duplicate the factory throttle body flange with our N54 charge pipe

The factory turbo inlet hose sits right before the turbo and is made of flexible rubber

Cast stainless steel inlet for smooth transition from turbocharger to downpipe

Other brand intercoolers may be adequate for short period pulls like the 1/4 mile (with hours between runs to cool down)

HKS Super Sequential Valve 4 (SSQV4) f03 it is now part ofGenuine HKS Super Sequential Valve 4 (SSQV4). For use on N54 Charge Pipes. Comes with aluminum weld on flange. When ordering with the charge pipe, the HKS flange is welded onto the charge pipe.