APR Valve Spring Kit | MK2 TT RS C7 RS7 4.0L Turbo V8 Reduces operating wear

Reduces operating wear

keeping the cross-sectional area as large as possible is the key to the pipe's performance gains

Internally the system is open with an small offshoot path leading to the main chamber designed to bounce soundwaves back into the exhaust flow path to eliminate unwanted frequencies

thanks to our billet turbo inlet adapter

This is a direct replacement filter for all IE cold air intakes with a 5" velocity stack on the heat shield

APR Valve Spring Kit | MK2 TT RS C7 RS7 4.0L Turbo V8 Reduces operating wearThe APR Valve Spring System is a high performance, lightweight upgrade designed to increase valve control and eradicate valve float common on many applications. APR's design specifications called for a valve spring, retainer and spring seat combination that doesn't overpower and snap the OEM valves or erode the aluminum spring seat, while still maintaining exceptional valve control. The result is an advanced design that's 28% lighter yet 20% stiffer