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Package Deals

  1. AA Test Pipes + Stage II Upgrade for Existing Stage I Owners

    AA Test Pipes + Stage II Upgrade for Existing Stage I Owners


    The main restriction in the E9x M3 exhaust is the primary cat. The AA test pipes are designed to replace the primary cat with perfectly mandrel bent, top quality pipe which retains OEM o2 sensor bung locations and bolt directly to OEM exhaust manifolds. The rear section of our pipes can either be clamped or welded on for a factory-like fit. This Package also includes the update from BPM Stage I to BPMStage II performance software to take full advantage of the new exhaust configuration.

    **NOTE** - This package is only for EXISTING customers that currently have the Stage I Software. This is an UPGRADE including the Test pipes, clamps, installation manual, and Stage II software to suit this setup.

    **WARNING** Please note that certain aftermarket exhaust systems may not comply with applicable US (including California) laws and regulations, and may therefore be prohibited for use on highways or roads, or on roads or vehicles otherwise subject to emissions control requirements. California prohibits the use of any aftermarket exhaust system that modifies, removes or replaces original equipment catalysts, unless CARB has issued an Executive Order as to such part or system. Exhaust systems/components used or intended for use on “racing vehicles” (i.e. a competition vehicle used exclusively for competition on closed-course circuits) do not require an exemption or Executive Order from CARB to be sold in California. However, such parts are prohibited from use on California public highways or roads, even if occasionally used “off-road.” Because of this, this product is not available for purchase in California. Please contact us with any questions. Learn More