10439 results for '2025 GMC Sierra 3500 HD exhaust'

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10439 results for '2025 GMC Sierra 3500 HD exhaust'

    Are Cold Air Intakes Overrated? The Dyno Data Truth in 2025(Post)

    Cold air intakes are the most oversold modification in the enthusiast game, and the dyno sheets prove it. While marketing promises 15-25hp gains, reality delivers 2-5hp on most naturally aspirated bu ...

    State Inspection Rules Banning Aftermarket Downpipes: GTI/WRX Impact(Post)

    Your catless downpipe just became a liability. Recent state inspection changes are quietly targeting aftermarket exhaust components with database cross-references and OBD scanner protocols that make ...

    EPA Engine Swap Rules 2025: Why Your LS Swap Is Now Illegal(Post)

    The EPA just made most engine swaps technically illegal, and the enforcement is ramping up faster than most builders realize. New interpretations of existing Clean Air Act regulations now classify an ...

    Catted vs Catless Downpipes: Why High-Flow Cats Make More Sense(Post)

    Most people buying downpipes are chasing the wrong number. Everyone thinks catless automatically means more power, but that's not how exhaust flow works. The real gains come from diameter, design, an ...

    G37 Sport 6MT Build Guide: VQ37VHR Mod Order That Works(Post)

    The Infiniti G37 Sport 6MT is one of the last naturally aspirated, rear-wheel-drive, manual-transmission platforms where bolt-ons and a proper tune deliver a genuinely transformative result. The VQ37 ...

    Lexus LC500 Build Guide: Mod Order That Works (2018-2026)(Post)

    The Lexus LC500 is the most underbuilt GT car on the market right now — and the owners who understand it aren't chasing horsepower. Toyota handed us a 471 hp naturally aspirated 5.0L V8 on a platform ...

    Honda S2000 CR AP2 Build Guide: Finishing What Honda Started(Post)

    The Honda S2000 CR is one of the few cars where the factory already made the hard decisions for you. Honda stripped the A/C, the stereo, and the sound deadening before you got the keys. They installe ...

    370Z Mods Ranked: $300 Fix vs $2000 Mistake(Post)

    {"@context": "https://schema.org", "@type": "VideoObject", "name": "370Z Mods Ranked: $300 Fix vs $2000 Mistake", "description": "\nThe Nissan 370Z (Z34 chassis, 2009-2020) represents the final evolu ...

    Black Rhino 8x180 Wheels(Page)

    Black Rhino 8x180 wheels bring the brand's rugged off-road and truck styling to the 8-lug 8x180 bolt pattern used by newer heavy-duty pickups. This grouping focuses specifically on rims drilled for 8 ...

    Gear Off Road 8x180 Wheels(Page)

    Gear Off Road 8x180 wheels cover the heavy-duty eight-lug fitment used by modern GM HD trucks, and the lineup here spans rugged monoblock designs in diameters from 18 up to 22 inches. Whether you wan ...

    22 inch American Force Wheels(Page)

    22 inch American Force wheels bring forged, all-American truck style to your build, and there are 314 fitments here in the 22-inch diameter across the full lineup of monoblock and multi-piece designs ...

    24 inch Cali Off-Road Wheels(Page)

    24 inch Cali Off-Road wheels bring full-size truck and SUV presence to your build, with 88 fitments stocked in this diameter alone. Every 24" application here is drawn from the brand's rugged off-roa ...