5" vs 4" Exhaust Pipe: Sound, HP & EGT Comparison (The Truth)
Five-inch vs four-inch exhaust: bigger must be better, right? Sound, horsepower, EGT reduction, and drone at highway speed compared — the results might surprise you.
Five-inch vs four-inch exhaust: bigger must be better, right? Sound, horsepower, EGT reduction, and drone at highway speed compared — the results might surprise you.
Why stainless steel is the smart exhaust upgrade. 304 vs 409 grades, corrosion resistance in salted-road states, and whether the premium is worth paying.
Is deleting your L5P Duramax worth it in 2026? We compare the performance gains, reliability improvements, and legal considerations against the cost and complexity.
The first thing that breaks in a cheap recovery kit: the hook or shackle — cast metal snaps without warning. What to look for in gear that won’t become a projectile.
Hear the difference before you buy. Stock vs aftermarket cold air intake sound comparison — turbo whistle, induction growl, and what changes at wide-open throttle.
The 2004-2005 LLY Duramax was GM’s first EGR-equipped diesel — and shipped without a DPF. Here’s which delete kit actually fits and why the cheap ones leak.
A turbo-back exhaust replaces everything from the turbocharger to the tailpipe. Full breakdown of components, gains at each stage, and how to spec your ideal setup.
The 6.0 Powerstroke’s EGR system wasn’t designed for reliability. We cover the five most common problems owners hit during EGR delete and exactly how to avoid them.
Billet valve covers for the 5.9L Cummins aren’t just for looks. They seal better, dissipate heat, and eliminate the factory cover’s common leak points — here’s why it’s more than cosmetic.