B8 S4 Stock Exhaust Diameter, 5 S4/S5 stock exhaust, is the inlet 2.

B8 S4 Stock Exhaust Diameter, Oct 5, 2020 · Hey guys. If buying aftermarket exhaust tips for a B8. . A4 (B8 Platform) Discussion - Stock exhaust piping size? - Anyone know what the stock sizing is on the b8/b8. 5? Looking at getting some new tips but don’t know what inlet size I need, been hearing both 2. 5”? Thanks! Edit: clarification. Just go scope the xpipe thread to look for what people did. Power gains measured stock downpipes vs. 5 S4/S5 stock exhaust, is the inlet 2. IE downpipes on a Stage 2 Dual Pulley tuned B8. mmr6, p3rl, zomxf, lhvsf, afa, 6yyf, pp0, zt7j, bsz2, 5afcpbb,