High-flow diesel exhaust systems for trucks and SUVs. 4" and 5" systems, DPF-back kits, and performance upgrades for maximum power and efficiency.
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Best AP Exhaust catalytic-converter for 2022-2008 Toyota Sequoia Rear Left | Direct Fit | EPA/CARB Compliant | 644238
$627.76
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
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Best AP Exhaust catalytic-converter for 2022-2008 Toyota Sequoia Front Left | Direct Fit | EPA/CARB Compliant | 644237
$824.10
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
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Best AP Exhaust catalytic-converter for 2020-2017 Ford Fusion Front | Direct Fit | EPA/CARB Compliant | 641656
$1,955.70
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
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Best AP Exhaust catalytic-converter for 2017-2013 Ford C-Max Front | Direct Fit | EPA/CARB Compliant | 641655
$1,194.72
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
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Best AP Exhaust catalytic-converter for 2014-2013 Ford C-Max Front | Direct Fit | EPA/CARB Compliant | 641654
$1,956.48
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
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Best AP Exhaust catalytic-converter for 2021-2018 Mazda CX-5 Front | Direct Fit | EPA/CARB Compliant | 641652
$1,802.44
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
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Best AP Exhaust catalytic-converter for 2021-2018 Mazda CX-5 Front | Direct Fit | EPA/CARB Compliant | 641651
$1,802.50
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
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Best AP Exhaust catalytic-converter for 2022-2020 Ford F-350 Super Duty | Universal Fit | EPA/CARB Compliant | 608937
$2,620.14
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
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Best AP Exhaust catalytic-converter for 2024-2018 Nissan Kicks Rear | Direct Fit | EPA/CARB Compliant | 644260
$1,649.62
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
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Best AP Exhaust catalytic-converter for 2024-2022 Hyundai Tucson Rear | Direct Fit | EPA/CARB Compliant | 644258
$686.92
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
Best AP Exhaust catalytic-converter for 2022-2020 Subaru Outback Front | Direct Fit | EPA/CARB Compliant | 641657
$1,003.46
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
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Best AP Exhaust catalytic-converter for 2024-2018 Volkswagen Tiguan Front | Direct Fit | EPA/CARB Compliant | 644261
$2,023.86
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
Frequently Asked Questions
What size exhaust for deleted diesel?
4" is minimum for deleted diesels; 5" is ideal for heavily modified trucks. Larger diameter dramatically reduces EGT and backpressure, crucial when deleting emissions equipment. Straight-pipe or single muffler designs flow best. Note: Emissions deletion is illegal for street use.
Will bigger exhaust help my stock diesel?
Yes! Even stock diesels benefit from 4" turbo-back systems. Expect lower EGT (50-100°F drop), slightly better MPG (1-2), and improved throttle response. Gains increase dramatically with tuning. Larger exhaust is essential foundation for any diesel performance build.
Turbo-back vs DPF-back exhaust for diesel?
Turbo-back systems (from turbo to tip) provide maximum performance by reducing all backpressure. DPF-back systems (behind diesel particulate filter) maintain emissions compliance while improving flow. For stock trucks staying emissions-legal, DPF-back offers best balance of performance and legality.
How much HP does exhaust add to diesel?
On stock diesel engines, exhaust alone adds 10-20 HP. With tuning, the same exhaust supports 50-100+ HP gains by reducing EGT and backpressure. Exhaust is essential before adding power - it's not the biggest power adder itself but enables other modifications to work safely.
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