Why does the Candy Red version cost more than standard colors?

Candy Red uses a multi-stage candy coat powder coating process that requires additional steps compared to standard finishes. The price reflects the more involved finishing work.

Does this kit require a tune?

No tuning is required. The bundle bolts onto a stock 07.5-10 LMM Duramax with no modifications. All factory sensors and emissions connections are retained.

Is this kit CARB compliant?

No, this kit is not CARB approved. It is for off-road or competition use in CARB states. Check your local and state regulations before purchasing.

What does Stage 3 include beyond Stage 2?

Stage 3 adds a 3 in. stainless steel turbo down pipe with heat wrap to the full Stage 2 package. This reduces exhaust back pressure for faster turbo spool and improved throttle response.

Specifications

Brand: Wehrli
Part #: WCF100504-CR
UPC: WCF100504-CR

Wehrli 07.5-2010 Chevrolet 6.6L Duramax LMM Stage 3 High Flow Bundle Kit - Candy Red

Name: Wehrli 07.5-2010 Chevrolet 6.6L Duramax LMM Stage 3 High Flow Bundle Kit - Candy Red
Brand: Wehrli
SKU: wehrli-wehrli-07-5-2010-chevrolet-6-6l-duramax-lmm-stage-3-high-flow-bundle-kit--t14-647181
Price: 3111.68 USD
Availability: BackOrder

$3111.68

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 07.5-10 Chevy/GMC 2500HD & 3500HD with 6.6L LMM Duramax. Stage 3 bundle in Candy Red with intake, Y-bridge, intercooler pipes, and down pipe.

Key Features

Fits 2007-2010 Chevrolet Silverado 2500 HD, 3500 HD and GMC Sierra 2500 HD, 3500 HD with 6.6L LMM Duramax diesel.
4 in. aluminum intake pipe with enclosed air box, dry filter assembly, and Outerwears hydrophobic pre-filter cover.
4.8 in. turbo intake horn with PCV port offers 20% airflow improvement over the factory intake horn.
Wehrli signature 3 in. two-piece Y-bridge with upper crossover and lower intercooler pipes flows 36% better than stock.
3 in. driver-side (hot) and 3.5 in. passenger-side (cold) intercooler pipes with mandrel bends.
3 in. stainless steel turbo down pipe with heat wrap improves exhaust flow after the turbocharger.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Moderate difficulty to install

Bolt-on installation with hand tools; expect 4-6 hours for a complete Stage 3 install including the down pipe.

About this part

Product Details

Candy Red Across the Entire Airflow System

This Wehrli Stage 3 High Flow Bundle Kit puts a Candy Red powder coat finish across every aluminum component while replacing the complete intake and intercooler tract on your 2007.5-2010 LMM Duramax. The kit also includes a stainless steel turbo down pipe to improve exhaust flow -- addressing restrictions on both sides of the turbocharger.

A 4 in. aluminum intake pipe with enclosed air box, dry filter, and Outerwears hydrophobic pre-filter feeds cold air through the inner fender. The 4.8 in. turbo intake horn picks up 20% more airflow than the stock piece, improving intake velocity and turbo sound.

Intercooler Piping Built to Hold

The 3 in. driver-side and 3.5 in. passenger-side intercooler pipes are fabricated from 14 ga. aluminum with mandrel bends. The cold-side pipe flows 47% better than factory. CNC machined flanges with double O-ring seals keep everything sealed under boost. The bolt-together 3 in. Y-bridge replaces the failure-prone factory slip-fit design, flowing 36% better and retaining factory grid heater and EGR connections.

Stainless Down Pipe Completes the Package

The 3 in. stainless steel turbo down pipe with heat wrap reduces exhaust back pressure for improved spool. All aluminum parts are USA-made in Candy Red powder coat. Hardware included, no tune required, saves $231 or more versus individual component pricing.