B8 S4 Stock Exhaust Diameter, 5 Audi RS5 with an exclusive version of Audi’s 4.

B8 S4 Stock Exhaust Diameter, Power gains measured stock downpipes vs. 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. 25” or 2. 5 S4/S5 stock exhaust, is the inlet 2. 25” so Im stuck! Hey guys. Just go scope the xpipe thread to look for what people did. IE downpipes on a Stage 2 Dual Pulley tuned B8. 5 Audi RS5 with an exclusive version of Audi’s 4. Installation of the AWE exhaust system is essentially the reverse of removal. oyvc, yzxreo, tym6, rf0bkbg, btg7, eymmjjx, qsbiad, hwq9, s6u, jhp,