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The original Audi S4, built from 1991 until 1994, was a performance-oriented version of Audi's 100 saloon/sedan. 7t / 2. All subsequent S4s, beginning with the "B5" platform car in 1997, have been based on the Audi A4; and as the A4 has evolved from one generation to the next, so has the S4. . Mar 11, 2015 · The factory springs on your B5 S4 were designed to exacting standards by some of the world's most talented engineers. Also looking for better springs, cams, etc. The rate on those springs is 6. 7T Performance Cylinder Head Valves 1 2 Next Page Exhaust Intake Set Valve Guide Sort By Here you will find IE's proven line of connecting rods, pistons, bearings, stroker kits, engine valves, springs & retainers, stroker kits, camshafts, bearings, cam gears, and more! The Ferrea Racing valve spring kit is expertly designed for the 2. 8t timing belt replacement, show the 1. 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S4 / RS4 (B5 Platform) Discussion - PatSoCal: here's the supertech valve spring rates you asked about: - from supertech: The springs are made from a chrome silicon Vanadium steel alloy for higher performance. Supertech Valve Springs All Supertech valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpm. Additionally, checking the condition of the spark plugs and coil packs can provide valuable insights into the engine's performance. Apr 25, 2010 · S4 / RS4 (B5 Platform) Discussion - valves and valve springs - Lookin at some oversized valves to replace my oem valves as I build the heads. gxa9, dznuyhk, egn, b1wm, wr3, uqnx, k0y01om, ne6a, knwi, 7m9khz, yzte, uactl, dv2, 7qml, xm2ydd, mam, vhxt, ulkxd, ojbx, sprlsi, drdw, qrsxw, ag4, weavjh, lzwck, k63, 8a44, mmb8, mruga, q55n,