Atomic Barra Heavy Duty Timing Chain Kits Options:| -T | Core + Tensioner | No Sprocket 3/4 grooving on Main Bearings

3/4 grooving on Main Bearings providing optimum oil supply

O-Ring Kit - Suits Turbosmart compressor cover style Kompact Shortie/VAG BOVs

This premium wash is crafted for the most discerning enthusiasts

This kit includes turbo and water feed lines

MATCH BY OE NUMBERS ONLY

Atomic Barra Heavy Duty Timing Chain Kits Options:| -T | Core + Tensioner | No Sprocket 3/4 grooving on Main BearingsThe Problem The factory Barra timing system was never designed for high RPM, big cams, or heavy valve springs. Under load, stock chains stretch, plastic guides shatter, and standard crank sprockets wear out. The result? Catastrophic engine failure. DID YOU KNOW? Just upgrading valve springs alone will add ~40% increase in load on the timing chain compared to standard. More aggressive, higher lift cams add more yet again. The effect is amplified at