Categories › Cats and Downpipes › Milltek Hi-Flow Sports Catalyst | Performance Cat

MO

Milltek Hi-Flow Sports Catalyst | Performance Cat
Zoom

MO

Milltek Hi-Flow Sports Catalyst | Performance Cat

SKU: SSXMTK006

$591.71 $591.71
Milltek Hi-Flow Sports Catalyst reduces OE restriction and improves exhaust flow on performance vehicles. T304L stainless, direct fit, requires Stage 2 ECU remap.

Parts

Description

OEM catalysts are typically dense and restrictive, limiting exhaust flow and engine performance. The Milltek Hi-Flow Sports Catalyst reduces backpressure over factory catalysts, enabling a free-flowing exhaust system that improves throttle response and mid-range power delivery. Requires Stage 2 ECU remap for optimal results.

Engineered from T304L stainless steel and CNC-formed for precision fitment. Direct factory bolt-on design uses OEM mounting points—no modification required. This component integrates seamlessly into Milltek cat-back and turbo-back exhaust systems, or as a standalone upgrade to your existing setup.

Why choose Milltek: Every catalyst is tested for flow efficiency and durability. Manufactured to EC approval standards and distributed globally to professional installers and enthusiasts who demand precision engineering over generic alternatives.

Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Key Facts

Pipe Diameter 70.00
  0 hours to fit (including removing OE system)
Race Product Yes
EMarked No

Shipping Information

This system ships in 1 box.

Box 1: 24 x 12 x 12 at 4.41lbs

Best Sellers

Milltek HJS Hi-Flow Sports Cat (w/ Heat Wrap) | Chevrolet C8 Corvette Z06

Milltek HJS Hi-Flow Sports Cat (w/ Heat Wrap) | Chevrolet C8 Corvette Z06

SSXCH111

Total
$3321.28 $3321.28

Milltek 80mm Non-Resonated Race Cat-Back Exhaust | VW Golf MK8 GTI-Polished Tips

Milltek Race 80mm Cat-Back Exhaust | VW Golf MK8 GTI

SSXVW681MP

Total
$1448.78 $1448.78

Forge Intake Kit | 2025+ Ford Maverick and Bronco Sport 2.0T EcoBoost

Forge Intake Kit | 2025+ Ford Maverick and Bronco Sport 2.0T EcoBoost

FMINDK65-PLE

Total
$335.98 $335.98

MO

Milltek Secondary Catalyst Bypass (Fits to OE System Only) | Porsche Cayenne 958 Turbo 4.8 V8 (Pre-Facelift)

Milltek Secondary Catalyst Bypass (Fits to OE System Only) | Porsche Cayenne 958 Turbo 4.8 V8 (Pre-Facelift)

SSXPO182

Total
$492.20 $492.20

Milltek Secondary Catalyst Bypass Exhaust | 2025+ Ford Maverick 2.0T AWD

Milltek Secondary Catalyst Bypass Exhaust | Ford Maverick 2.0T AWD

SSXFD547MP

Total
$202.98 $202.98

Milltek Secondary Catalyst Bypass (Fits to OE System Only) | Porsche 958 Cayenne S 4.8 V8 (Non-Turbo)

Milltek Secondary Catalyst Bypass (Fits to OE System Only) | Porsche 958 Cayenne S 4.8 V8 (Non-Turbo)

SSXPO204

Total
$492.20 $492.20

PRE-ORDER
Milltek Valved Axle-Back Exhaust | Dodge Charger Sixpack H/O 3.0T Hurricane - Polished Tips

Milltek Valved Axle-Back Exhaust | Dodge Charger Sixpack H/O 3.0T Hurricane

ENQ-CHG-ABV-MP

Total
$1845.32 $1845.32

Milltek Cat-Back Exhaust | Dodge RAM 1500 Rebel Hurricane - Cerakote Black Tips

Milltek Cat-Back Exhaust | Dodge RAM 1500 Rebel

SSXRAM109MP

Total
$1937.77 $1937.77

MO

Milltek Secondary Catalyst Bypass | Audi RS3 8V Dual Catalyst Systems

Milltek Secondary Catalyst Bypass | Audi RS3 8V Dual Catalyst Systems

SSXAU588

Total
$330.63 $330.63

MO

Milltek Large Bore Downpipe HJS Hi-Flow Cat - NO CEL | VW Golf MK8 R / Audi S3 8Y

Milltek Large Bore Downpipe with HJS Hi-Flow Cat - NO CEL | VW Golf MK8 R

SSXVW672MP

Total
$1837.19 $1837.19