Now available: AWE Tuning Twin1 exhaust. The Twin1 exhaust system uses only one mid muffler and no rear muffler for S4 drivers looking for a louder, more aggressive sounding exhaust system. Though the Twin1 uses only one muffler instead of the two found in our Twin2 system, there is absolutely no drone at any engine speed. And the sound at full throttle is incredible!
With the AWE Tuning Twin1 and Twin2 S4 Exhaust Systems, you've found the finest exhaust systems available for the Audi S4. Both systems offer outstanding performance from a true dual tubing configuration, with a choice of sound levels to meet your desires.
We now offer a free flow option for purchasers who wish to purchase both our downpipes and a Twin1 or Twin2 exhaust system at the same time.
The AWE Twin1 and Twin2 Exhaust Systems maintain individual exhaust streams, eliminating the bottleneck normally found after the downpipes, and freeing up power. As compared to stock, the diameter of the Twin1/Twin2 tubing is a whopping 35% larger in cross sectional area. By keeping each exhaust stream separate, the Twin1/Twin2 also allow exhaust gases to maintain velocity and the engine to work more efficiently.
Besides fantastic looks, tone, and power you can feel, what really sets the Twin1/Twin2 apart from all other dual exhausts on the market is their perfect fit. With the AWE Tuning Twin1 or Twin2, you maintain excellent road clearance with zero leaks, rattles, or periodic adjustments.