SPELAB Blogs
Explore expert guides, upgrade insights, maintenance tips, product comparisons, and installation knowledge across a wide range of automotive performance and replacement parts.
What Is the L6P Duramax? 2027 GM 8.3L Diesel Facts, Specs, and L5P Comparison
Last updated: October 12, 2026 The L6P Duramax is GM's new 8.3L turbo-diesel V8, internally nicknamed Mongoose, for the refreshed 2027 Chevrolet Silverado HD and GMC Sierra HD. GM has...
What Should You Upgrade First on a Cummins? A Year-by-Year 5.9L and 6.7L Guide
The best Cummins upgrades protect fuel supply, control exhaust and transmission heat, support the gearbox, and match the truck's real workload before adding horsepower. The inline-six may have plenty of...
The Power Stroke Upgrade Roadmap: A Beginner’s Guide to Building It Right
A solid Power Stroke build starts with the truck in your driveway, not the parts stacked in somebody else’s YouTube thumbnail. Confirm the engine, model year, transmission, emissions equipment, previous...
The Duramax Upgrade Roadmap: How to Build It Right, Not Just Fast
Build a reliable 6.6L Duramax in the right order. Diagnose first, verify towing limits, then plan fuel, cooling, airflow, transmission and power upgrades for LB7 through L5P trucks.
2026 L5P Duramax Engine Noise: GM PIP6131 Explained for Silverado HD and Sierra HD Owners
GM PIP6131 explains possible upper-engine noise on some 2026 L5P Duramax trucks. Learn symptoms, dealer inspection steps, and why parts should wait until diagnosis.
6.7 Powerstroke DPF Delete Kit Fitment Guide by Year
Match your F-250, F-350, F-450, or F-550 by year, exhaust layout, pipe size, and legal-use status before choosing off-road DPF pipe options.
4 Inch vs 5 Inch DPF Delete Pipe: Which Size Should You Choose?
Buyer-focused guide explaining when 4 inch is enough, when 5 inch makes sense, and what to check before ordering a diesel delete pipe.
Should You Buy a Used Deleted Diesel Truck?
A practical buyer’s guide for used deleted diesel trucks, covering legal risk, missing stock parts, unknown tunes, inspection checks, pricing risk, and when to walk away.
Do You Need an EGR Delete with a DPF Delete?
Find out whether you can keep EGR after a DPF delete, what symptoms to watch for, and how street-driven trucks should be repaired legally.
What to Upgrade Before a July 4th Diesel Truck Road Trip: SPELAB Sale Picks
Before a July 4th diesel truck road trip, upgrade the parts most likely to fail under heat, towing load, boost pressure, and long highway miles. SPELAB’s 4th of July Sale...
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