PPEI 2006-2007 GM 6.6L LBZ Duramax Engine Tuning
Can I pick up my order or have it installed at your shop?
Can I pick up my order or have it installed at your shop?
Absolutely. We offer local pickup on most products and full professional installation at our shop in Washington, MO. Whether you just want to grab your parts or have our techs handle the install, we’ve got you covered. Give us a quick call at 636-429-7020 or message us to schedule a visit — we’ll make sure the parts are ready when you arrive.
How do I know if this part fits my vehicle?
How do I know if this part fits my vehicle?
Unsure if it’ll fit? No problem — that’s what we’re here for. Send us your vehicle’s year, make, and model, and we’ll verify fitment before you order. We can also point you toward compatible upgrades or supporting parts if needed.
What if I need to return a product or it’s defective?
What if I need to return a product or it’s defective?
Most unused items can be returned within 30 days in their original packaging. Some products are covered by a manufacturer’s warranty as well. If something arrives damaged or doesn’t meet your expectations, just let us know — we’ll help you get it replaced, refunded, or repaired. (Tracking updates are also emailed automatically once your order ships.)
What's the lead time on custom or fabricated parts?
What's the lead time on custom or fabricated parts?
Many of our parts are built to order — especially fabricated or performance components. These can take additional time to produce before shipping. Lead times vary by manufacturer and demand, but we’ll always keep you updated along the way. If you’re working on a tight schedule, reach out before ordering at 636-429-7020 and we’ll confirm current availability or estimated ship dates.
Get more out of your 2006–2007 GM 6.6L LBZ Duramax with PPEI Engine Tuning. Five calibrated power levels sharpen throttle response, cut turbo lag and add up to +200 HP at the wheels, with separate calibrations for stock and built transmissions so you never push the drivetrain past what it can handle.
Why Choose PPEI Engine Tuning?
- Up to +200 RWHP – five power levels, from +30 HP Economy to +200 HP Performance on a built transmission.
- Stock or built trans calibrations – stock-trans files are capped at +150 HP to protect the factory Allison.
- Quicker throttle and less turbo lag – faster acceleration and smoother, more consistent power delivery.
- Efficiency-focused calibration – built around reliability and fuel economy, not just peak numbers.
- Proven calibrator – PPEI (Power Performance Enterprises, Inc.) has calibrated diesels since 2008 under lead calibrator Kory Willis, with multiple world records and industry firsts.
Power Levels
| Power Level | Stock Transmission | Built Transmission |
|---|---|---|
| Level 1 – Economy | +30 HP | +30 HP |
| Level 2 – Heavy Tow | +60 HP | +60 HP |
| Level 3 – All Purpose | +100 HP | +120 HP |
| Level 4 – Street | +120 HP | +160 HP |
| Level 5 – Performance | +150 HP | +200 HP |
Installation Highlights
Tuning flashes with an EFILive AutoCal V2/V3 or EFILive FlashScan V2/V3. Edge Insight+ can flash engine tuning only. It does not support transmission tuning and is not compatible with trucks running aftermarket injectors, injection pumps, turbos or other engine modifications. For modified trucks, PPEI recommends EFILive. For best results, PPEI recommends pairing the tune with a FASS Fuel System lift pump and a less restrictive cold air intake.
Fits These Models
2006–2007 Chevrolet Silverado 2500HD / 3500 and GMC Sierra 2500HD / 3500 with the 6.6L LBZ Duramax
Key Features at a Glance
- Five power levels – Economy, Heavy Tow, All Purpose, Street and Performance.
- Trans-matched files – stock-trans and built-trans calibrations.
- EFILive platform – AutoCal or FlashScan V2/V3; Edge Insight+ for engine-only on unmodified trucks.
- Wheel-horsepower ratings – gains measured at the wheels against PPEI's LBZ baseline.
Notes
- Stock-transmission trucks should not exceed +150 HP over stock; more can cause premature transmission failure.
- For towing over 15,000 lbs, do not run above Level 2 (Heavy Tow).
- Level 4 (Street) is not intended for towing. Level 5 (Performance) is built for the track — no towing or daily driving.
- Part Number: PP-LBZ-ET
Questions? We’re Here to Help.
Have questions about upgrades for your 2006–2007 LBZ Duramax? Contact FASS Motorsports and we’ll get you dialed:
Phone: 636-429-7020
Email: info@fassmotorsports.com
This part fits the following vehicles:
| Years | Make & Model |
|---|---|
| 2006–2007 | Chevrolet Silverado 2500 HD |
| 2006 | Chevrolet Silverado 3500 |
| 2006–2007 | GMC Sierra 2500 HD |
| 2006 | GMC Sierra 3500 |
| 2007 | Chevrolet Silverado 2500 HD Classic |
| 2007 | Chevrolet Silverado 3500 Classic |
| 2007 | GMC Sierra 2500 HD Classic |
| 2007 | GMC Sierra 3500 Classic |
Fitment is listed by year, make and model. Some applications also depend on cab, bed, drivetrain or engine — if you are not sure, call 636-429-7020 or send us your vehicle details and we will confirm before you order.
