Integrated Engineering Valve Spring & Retainer Kit | MK4 GTI · Jetta · GLI · MK1 Beetle · B5 Passat · A4 · B6 A4 · MK1 TT | 1.8L Turbo I4 F01 · F02 ActiveHybrid 7 3.0L Turbo I6 [N55] Unique internal design reaches peak

Unique internal design reaches peak boost faster improving acceleration

IE engineers exploit careful tuning of the intake manifold runner lengths and diameters to create a resonance effect that rams more air into the cylinders

Installing the factory IHI IS20 turbocharger found on 2015-2021 MK7 GTI vehicles offers an easy upgrade to higher boost pressures with power levels delivering up to 301HP & 361TQ on pump gas

JXB Performance Billet Linkage Reinforcement Kit

Integrated Engineering Valve Spring & Retainer Kit | MK4 GTI · Jetta · GLI · MK1 Beetle · B5 Passat · A4 · B6 A4 · MK1 TT | 1.8L Turbo I4 F01 · F02 ActiveHybrid 7 3.0L Turbo I6 [N55] Unique internal design reaches peakThis high quality IE valve spring and titanium retainer kit features spring rates optimized to match your vehicle specifications and provide proper valve control preventing valve float in high power and high revving applications. Increasing your engines power output often comes with modifications that require more RPMs to get the most out of it, such as larger turbochargers, tuned intake manifolds, and high output software tunes. Upgrading those