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 2020-2013 Nissan NV200 Front | Direct Fit | EPA/CARB Compliant | 644072
$1,029.90
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 2015-2014 Honda Civic Rear | Direct Fit | EPA/CARB Compliant | 644071
$650.90
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 2009-2007 Dodge Durango | Direct Fit | EPA/CARB Compliant | 644067
$1,266.70
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 2017-2015 Chevrolet Equinox Front | Direct Fit | EPA/CARB Compliant | 644066
$1,272.42
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 2020-2014 Nissan Rogue Rear | Direct Fit | EPA/CARB Compliant | 644065
$707.00
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 2008-2005 Buick LaCrosse Center | Direct Fit | EPA/CARB Compliant | 644064
$1,172.56
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 2005-2004 Mazda Miata | Direct Fit | EPA/CARB Compliant | 644062
$1,216.28
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 2017-2012 Nissan Versa | Direct Fit | EPA/CARB Compliant | 644060
$1,054.36
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 2013-2012 Kia Soul Rear | Direct Fit | EPA/CARB Compliant | 644054
$1,114.24
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 2015-2014 Mitsubishi Mirage Front | Direct Fit | EPA/CARB Compliant | 644053
$1,070.52
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 2012-2010 Ford Fusion Rear | Direct Fit | EPA/CARB Compliant | 644052
$900.04
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 2024-2013 Toyota 4Runner Rear Left | Direct Fit | EPA/CARB Compliant | 644051
$1,563.96
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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