ARP Head Bolt Kit - Volkswagen/Audi 1.8L DOHC 20V Turbo w/o Tool - 204-3901 303 Series By replacing your current Evolution

By replacing your current Evolution 10 radiator with a top of the line Mishimoto performance aluminum radiator

ZX5-HDR4 kit features ACT's most popular Heavy Duty pressure plate

2007-2008 Audi RS4 Base V8 4

45°C) and provides an increase of 20+ hp while retaining factory boost pressure across the core

BEST: “PRO” SERIES WAVE-LOC BOLTS

ARP Head Bolt Kit - Volkswagen/Audi 1.8L DOHC 20V Turbo w/o Tool - 204-3901 303 Series By replacing your current EvolutionAll Pro Series bolts are cold forged to ensure molecular integrity, heat treated prior to thread rolling and machining, and meet the ARP ZERO defect ZERO failure quality standard. ARP Pro Series head bolt kits are application specific and designed to deliver superior strength typically associated with competition engines. Pro Series kits are available in standard (8740) 190,000 psi tensile strength material and proprietary (ARP2000) 220,000 psi