Designed to seamlessly fit in place of factory catalytic converter
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Designed to seamlessly fit in place of factory catalytic converter
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CTS Turbo high flow cat is made to maximize exhaust flow for highest power gains - Do not compromise performance and sound with factory parts - Unleash your B9 S4/S5 3.0T Potential!
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T304 stainless steel with high flow catalytic converter
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Complete drop-in upgrade will bolt up to stock/Stock Fit Turbo
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Maximize exhaust flow for highest power gains!
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Replace your factory downpipe with this upgraded JHM high flow cat!
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Designed as a drop-in replacement for the restrictive factory catalytic converters - offers increased horsepower and torque throughout the powerband, reduced turbocharger lag, improved throttle response, and enhanced exhaust note!
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*This catalyst requires a Stage 2 Racing Use Only Remap to eliminate any check engine lights due to removal of the factory catalyst*
T304 Stainless down pipe that installs directly after the factory catalytic converter
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If you are looking to get the most performance out of your stock turbo C7.5 2.0T, this is the HFC Pipe that you need!
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For Facelift models only
complete drop-in upgrade will bolt up to stock/Stock Fit Turbo
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3.0" T304 Stainless system produces gains of up to 25hp.
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For vehicles up through 2020
Designed to seamlessly fit in place of factory catalytic converter
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Featuring Milltek Sport Hi-Flow sports cat, fits to Milltek Sport Cat Back systems.
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Requires stage 2 software
Featuring Milltek Sport Hi-Flow sports cat, fits with OE cat-back system.
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Requires stage 2 software
Offers increased horsepower and torque throughout the powerband, reduced turbocharger lag, improved throttle response, and an enhanced exhaust note
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This product was last offered at the strikethrough price on
03-08-2026
complete drop-in upgrade will bolt up to stock/Stock Fit Turbo
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms