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 2005-2001 Dodge Neon | Direct Fit | EPA/CARB Compliant | 642847
$1,001.40
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 2004-1999 Chrysler 300M Right | Direct Fit | EPA/CARB Compliant | 642846
$720.16
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 2002-2000 Dodge Neon Rear | Direct Fit | EPA/CARB Compliant | 642843
$736.72
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 2005-2004 Toyota RAV4 Rear | Direct Fit | EPA/CARB Compliant | 642842
$494.66
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 2018-2012 Ford Focus Rear | Direct Fit | EPA/CARB Compliant | 642835
$758.50
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 2014-2012 Honda CR-V Rear | Direct Fit | EPA/CARB Compliant | 642832
$626.22
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 2016-2011 Hyundai Elantra Rear | Direct Fit | EPA/CARB Compliant | 642830
$489.32
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 2013-2011 Kia Sorento Rear | Direct Fit | EPA/CARB Compliant | 642829
$511.04
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 2015-2009 Hyundai Sonata Rear | Direct Fit | EPA/CARB Compliant | 642828
$734.92
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 2010-2006 Hyundai Elantra Rear | Direct Fit | EPA/CARB Compliant | 642827
$827.86
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 Kia Sorento Rear Left | Direct Fit | EPA/CARB Compliant | 642825
$756.32
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 2012-2007 Acura RDX Rear | Direct Fit | EPA/CARB Compliant | 642824
$873.48
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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$132.00
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