Kooks 1-7/8" Header and Catted Connection Kit. 2006-2009 Chevrolet Trailblazer SS 6.0L
Kooks / Header Kits

Kooks Trailblazer SS LS2 Header and Y-Pipe Kit (2006-2009) | 2720H420

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£3,287.00 VAT included. Shipping calculated for your destination.

Available to Order

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Delivery, customs and taxes Know the landed cost before you order

Prices include VAT. Shipping is charged separately and calculated at checkout for your destination. If no shipping option is shown, contact us for a quote before ordering.

Lead times and urgent orders Check timing before you commit

Estimated lead time: 4–6 weeks. Delivery may be faster depending on stock levels. Contact us before ordering if timing matters.

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Technical specifications
Specification Details
SKU 2720H420
Application 2006-2009 Trailblazer SS, LS2 6.0L V8
Material 304 stainless steel
Headers 1-7/8" primaries; 3" collectors
Y-pipe 3" Performance-catted stainless steel
Rear outlet OEM interface
Catalyst condition Naturally aspirated only

Make more of the LS2 in your Trailblazer SS

Upgrade your Trailblazer SS with Kooks 1-7/8" long tube headers and a matching Performance-catted Y-pipe. This stainless front system brings the principal exhaust conversion components together for the 6.0-litre LS2, joining the OEM rear exhaust.

SKU: 2720H420

Headers and Y-pipe supplied together

The headers use 3" collectors, feeding the 3" front pipework of the supplied Y-pipe before its OEM outlet. The matched package lets a compatible rear exhaust stay in the installation.

For the naturally aspirated SS

This is the 2006-2009 Trailblazer SS 6.0-litre application. Performance cats suit a naturally aspirated LS2; a boosted engine needs a catalyst arrangement suitable for forced induction.

Tuning for your exhaust upgrade

We recommend tuning with every header installation so the calibration suits your new headers, complete exhaust and fuel. Contact us to discuss the right tuning route for your vehicle.

Vehicle fitment

Years Vehicle / trim Engine Applicable SKU Fitting conditions
2006-2009 Chevrolet Trailblazer SS 6.0L V8 2720H420

Intended use

Competition, off-road and track use only. Not for use on public roads.

Ordering and delivery

Estimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.

Technical specifications

Specification Details
SKU 2720H420
Application 2006-2009 Trailblazer SS, LS2 6.0L V8
Material 304 stainless steel
Headers 1-7/8" primaries; 3" collectors
Y-pipe 3" Performance-catted stainless steel
Rear outlet OEM interface
Catalyst condition Naturally aspirated only

Frequently asked questions

Is this for the six-cylinder Trailblazer?

This package is for the SS with its LS2 6.0-litre V8.

Are the front cats supplied?

Yes. They are part of the supplied Performance-catted Y-pipe.

Do you recommend tuning with these headers?

We recommend tuning with every header installation. Talk to us about calibration for your vehicle, exhaust and other modifications.

Delivery, customs and taxes

Know the landed cost before you order

Prices include VAT. Shipping is charged separately and calculated at checkout for your destination. If no shipping option is shown, contact us for a quote before ordering.

Lead times and urgent orders

Check timing before you commit

Estimated lead time: 4–6 weeks. Delivery may be faster depending on stock levels. Contact us before ordering if timing matters.

Fitment first

Check fit before you order

Model year, engine, drivetrain, hardware and existing modifications can all change what fits. Check the applications and supplier notes above, or send us your exact vehicle and setup before ordering.

Check vehicle fitment
Need help with this product?

Send us your vehicle, year, current setup and any fitting date, event, trip or deadline before ordering. We will help check fitment, product choice and timing.

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See other parts for this route
Kooks Trailblazer SS LS2 Header and Y-Pipe Kit (2006-2009) | 2720H420
Kooks Trailblazer SS LS2 Header and Y-Pipe Kit (2006-2009) | 2720H420
Available to Order £3,287.00