3.00" Stainless Steel with dual Polished oval tips - Retains valves from OE system
3.00" Stainless Steel with dual Polished oval tips - Retains valves from OE system
The IE 304L Stainless system features a massive 3.5" straight-through center pipe that splits to dual 3" pipes out the back with the valves open - This is enough flow to power even the largest turbo setups!
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*To be used with IE downpipe IEEXCQO1 / ES3677700 (Does not include Y-pipe adapter to mate with factory downpipe)
4.00" 304 stainless performance downpipe system with a high flow sports catalyst
Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button
Replaces the restrictive secondary midpipe - Fits both OE and Milltek Sport systems
*** Not all vehicles come equipped with secondary cats, visual check recommended before ordering ***
T304 stainless-steel construction with dual 2.5" mandrel-bent brushed tubing with quad 2.5" outlets in dual 170x112mm ovalized tips
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This product was last offered at the strikethrough price on
07-31-2026
Increase Sound and Power!
Carbon Fiber exhaust tips featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 4.0" Double Wall, Slant Cut Outlet
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Not vehicle specific. You MUST measure prior to purchasing!
This product was last offered at the strikethrough price on
06-13-2026
Used to adapt IE downpipe (RS3/TTRS) to stock Cat-back system, or IE Cat-Back (RS3) to stock downpipe
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Double wall stainless steel. Single 2.25" inlet, Dual 3" outlet.
Offers increased horsepower and torque throughout the powerband *(+ 178 HP / + 179 TQ), reduced turbocharger lag, and an enhanced exhaust note - This is the ultimate downpipe solution for the discerning Audi enthusiast!
*Requires a Stage 2 ECU Remap to eliminate check engine light and to take full advantage of power gains*
Double wall stainless steel. Single 2.25" inlet, Dual 3" outlet.
Carbon Fiber exhaust tip featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet
10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!
This product was last offered at the strikethrough price on
05-02-2026
Carbon Fiber exhaust tips featuring swivel attachment for maximum adjustability. 2.5" Swivel Inlet / 3.5" Double Wall, Slant Cut Outlet
10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!
This product was last offered at the strikethrough price on
06-13-2026
2.5" Inlet - 3.5" Outlets - 1x1 Carbon Fiber Sleeves
A perfect fit, smooth exhaust flow, and excellent sound
Stage 2 software is required to avoid check engine light.