Accelerate exhaust gas scavenging, reduce destructive engine backpressure, and unlock hidden horsepower by upgrading to high-flow ATV and UTV exhaust headers and linkage pipes. Factory head pipes are mass-produced with restrictive internal weld beads, tight crush bends, and heavy materials that bottleneck spent combustion gases right at the cylinder head exhaust port. Upgrading to a mandrel-bent stainless steel or titanium header ensures a uniform internal diameter throughout the primary tube, allowing your engine to breathe efficiently and building instantaneous throttle response. At CG ATV & UTV Parts Shop, we stock an elite tier of exhaust components—including stepped primary headers, high-flow mid-pipes, slip-on linkage adapters, and heavy-duty connector pipes—engineered to withstand extreme thermal expansion and off-road abuse.

Our domestic logistical dispatch matrix fires on all cylinders daily, picking, sealing, and shipping your components from strategic distribution nodes to guarantee rapid delivery right when you need it. Whether you are replacing a cracked factory manifold on a utility machine or pairing a tuned mid-pipe with a sport slip-on muffler to complete a full system build, our rugged link pipes ensure a leak-free mechanical seal. Purge hot engine gases quickly, deepen your exhaust note, and maximize your machine’s torque curve across the entire RPM range.

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Big Gun Evo R Head Pipe

Original price was: $278.49.Current price is: $250.64.
Genuine Big Gun exhaust component. VEHICLE SPECIFIC. In stock, ships from USA. Part of the Exhaust catalog at CG ATV & UTV Parts Shop.

Big Gun EXO Series Head Pipe

Original price was: $278.49.Current price is: $250.64.
Genuine Big Gun exhaust component. VEHICLE SPECIFIC. In stock, ships from USA. Part of the Exhaust catalog at CG ATV & UTV Parts Shop.

Big Gun Evo U Head Pipe Polaris RZR 800 / RZR 4 800 / RZR S 800 2008-2014 [Open Box]

Original price was: $316.75.Current price is: $256.57.
Genuine Big Gun exhaust component. VEHICLE SPECIFIC. In stock, ships 1–3 days from USA. Shop all Exhaust at CG ATV & UTV Parts Shop.

Mandrel Bending Structural Metallurgy vs. Scavenging Pulses

To fully capitalize on aftermarket ATV and UTV exhaust headers, it helps to analyze the manufacturing methodology behind their production. Cheap factory units feature press-bent lines that create small internal wrinkles, shrinking the exhaust volume diameter at every corner. Premium performance headers utilize precision CNC mandrel bending, where a solid internal support rod keeps the high-grade 304 stainless steel or aircraft titanium tubing perfectly round throughout each radius bend. This unhindered path preserves smooth exhaust velocity, creating a low-pressure vacuum effect at the cylinder head that literally pulls spent exhaust gases out of the engine combustion chamber while drawing in a fresher, denser intake charge.

Mid-pipes or linkage pipes bridge the crucial mechanical gap between your engine's header primary outlets and the rear muffler assemblies. These midsections frequently incorporate slip-fit expansions or dual stainless steel tension retention springs to allow your exhaust system to flex safely during violent chassis impacts or chassis twisting on aggressive trails, preventing catastrophic stress cracks at your engine block cylinder head studs.

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Coordinate corresponding performance modifications, exhaust seals, and intake parts from our active stock:

Gasket Torque Pressures, Spring Seating, & Fuel Mapping Tuning Constraints

When bolting your new header onto the engine cylinder exhaust face, always swap out the old crushed exhaust port gaskets for a fresh copper or multi-layered steel seal ring. Tighten down your exhaust header nuts in an alternating sequence, moving back and forth to distribute pressure evenly and prevent warped flange ears; typical torque values range between 14 to 18 foot-pounds. Because a high-efficiency mandrel header drastically speeds up internal air displacement, your engine will naturally pull more air, resulting in a lean fuel mixture. To protect your engine from high running temperatures, ensure you adjust your carburetor jetting or re-flash your electronic control module fuel mapping. For deep technical data regarding high-performance exhaust plumbing fluid dynamics and engine thermal safety thresholds, consult the open resources provided by SAE International Automotive Engineering Registries.

Header / Linkage Pipe FAQ

Factory header pipes are made using cheap crush-bending, which collapses the inner tube walls and slows down hot exhaust gas velocity. Mandrel-bent headers use an internal support mandrel during bending to maintain a completely uniform interior pipe diameter, maximizing exhaust gas scavenging and increasing raw power output.
Yes. High-performance headers pull air through the engine significantly faster than stock units. This changes the air-fuel ratio, causing your engine to run lean and hot. You must install a fuel controller tuner or re-jet your carburetor to provide enough fuel to keep your engine running at safe internal temperatures.
Exhaust systems experience extreme thermal expansion and mechanical vibration on the trail. Heavy-duty exhaust retention springs securely hold the slip-fit joints together while providing just enough structural flex to prevent stressful metal fracturing at the cylinder head studs when your chassis twists over rough terrain.