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 2006-2004 Ford Ranger Rear | Direct Fit | EPA/CARB Compliant | 645442
$710.44
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
Best AP Exhaust catalytic-converter for 2005-2004 Dodge Ram 1500 Left | Direct Fit | EPA/CARB Compliant | 645438
$627.84
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 Dodge Ram 1500 Left | Direct Fit | EPA/CARB Compliant | 645436
$681.52
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 2004 Jeep Liberty Right | Direct Fit | EPA/CARB Compliant | 645435
$745.14
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 1998-1997 Ford F-150 Left | Direct Fit | EPA/CARB Compliant | 645434
$1,118.78
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 2004-2003 Ford Expedition Left | Direct Fit | EPA/CARB Compliant | 645433
$1,591.54
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 1998-1997 Ford F-150 Right | Direct Fit | EPA/CARB Compliant | 645432
$1,161.98
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 2004-2003 Ford Expedition Right | Direct Fit | EPA/CARB Compliant | 645431
$1,648.92
ARISTO's proprietary substrate chemistry yields highly efficient loadings for lower cost and better converter efficiency...
Best AP Exhaust catalytic-converter for 2010-2006 Ford Explorer | Direct Fit | EPA/CARB Compliant | 645430
$1,610.64
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 2006-2003 Hummer H2 Right | Direct Fit | EPA/CARB Compliant | 645429
$1,403.66
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 2010-2004 Dodge Dakota | Direct Fit | EPA/CARB Compliant | 645428
$1,016.22
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 2006-2005 Toyota Tundra Right | Direct Fit | EPA/CARB Compliant | 645426
$1,381.20
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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