High-flow diesel exhaust systems for trucks and SUVs. 4" and 5" systems, DPF-back kits, and performance upgrades for maximum power and efficiency.

Showing 1 to 12 of 1805 items

Performance Diesel Exhaust TL1224

$103.39

Performance Diesel Exhaust - Part# TL1224 Performance diesel exhaust component Features: Designed for diesel applications...

Performance Diesel Exhaust KFORD165

$573.53

Performance Diesel Exhaust - Part# KFORD165 Performance diesel exhaust component Features: Designed for diesel applications...

Performance Diesel Exhaust KDUR1045

$545.40

Performance Diesel Exhaust - Part# KDUR1045 Performance diesel exhaust component Features: Designed for diesel applications...

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Performance Diesel Exhaust KDOD204

$325.54

Performance Diesel Exhaust - Part# KDOD204 Performance diesel exhaust component Features: Designed for diesel applications...

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Performance Diesel Exhaust KDOD203

$375.54

Performance Diesel Exhaust - Part# KDOD203 Performance diesel exhaust component Features: Designed for diesel applications...

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Performance Diesel Exhaust KDOD1045

$587.73

Performance Diesel Exhaust - Part# KDOD1045 Performance diesel exhaust component Features: Designed for diesel applications...

Performance Diesel Exhaust KDOD1035

$587.83

Performance Diesel Exhaust - Part# KDOD1035 Performance diesel exhaust component Features: Designed for diesel applications...

Performance Diesel Exhaust HHF1

$30.00

Performance Diesel Exhaust - Part# HHF1 Performance diesel exhaust component Features: Designed for diesel applications...

Performance Diesel Exhaust HH11211-4

$118.00

Performance Diesel Exhaust - Part# HH11211-4 Performance diesel exhaust component Features: Designed for diesel applications...

Performance Diesel Exhaust HH11211-3

$118.00

Performance Diesel Exhaust - Part# HH11211-3 Performance diesel exhaust component Features: Designed for diesel applications...

Performance Diesel Exhaust H8524

$78.00

Performance Diesel Exhaust - Part# H8524 Performance diesel exhaust component Features: Designed for diesel applications...

Performance Diesel Exhaust H8424

$68.00

Performance Diesel Exhaust - Part# H8424 Performance diesel exhaust component Features: Designed for diesel applications...

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.