Remark Non-Resonated Dual R1-Spec Burnt Tip Catback Exhaust - Subaru WRX / STi (VA) 2015-2021 AG-VTX-20 The CSL Yellow DRL module

The CSL Yellow DRL module upgrade kit features:

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with the GFB Respons TMS you CAN achieve a blow-off sound without throwing a CEL

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Remark Non-Resonated Dual R1-Spec Burnt Tip Catback Exhaust - Subaru WRX / STi (VA) 2015-2021 AG-VTX-20 The CSL Yellow DRL moduleDUAL Exit R1 Spec with Non Resonated Midpipe One of our most aggressive looking systems for the 2015 2021 WRX STi. Features dual R1 Spec muffler canisters with 4 inch slant cut tips. Designed and manufactured for the performance minded enthusiasts. The R1 Spec features 3 inch mandrel bent piping and high flow straight through muffler design. This system is offered without a resonator located on the midpipe. The two 150mm O. D. canister mufflers