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Performance Design Carbon pTR intake manifolds combine high-quality materials into a flexible and powerful tunnel ram architecture. PA6GF30 glass-reinforced nylon (lower) and 5-layer carbon fiber (upper) shells combine for lightweight, strong, and heat-resistant performance. Offering unique modular velocity stacks enabling 6 1/2 in. to 9 in. runners, multiple accessory port and sensor options along with other custom features, these high-performance manifolds offer easy configuring for a variety of hot rod builds, and can even be reversed on the engine. The plenums feature high-strength carbon fiber with high-temperature epoxy for improved strength-to-weight ratio and reduced heat soak to the fresh air charge. The polymer lower runner pack resists heat soak from the cylinder heads and hides all the ports/sensors in the valley. This combination of materials offers a 10 lbs. weight savings over competitive aluminum tunnel ram manifolds. These custom assemblies are designed for resto-mod, off-road race trucks, race boats, and hot rods where hood clearance is not an issue (they will not fit under late model vehicle hoods). Other product features and specifications include: * Modular velocity stacks for 6.5 in., 8.0 in., and 9.0 in. runner lengths * Raised velocity stack runner entries * Foam-core flange * Anodized billet 105mm forward-facing throttle body flange accepts 90-105mm throttle body * Two MAP sensor locations (front and back) * Two 1/4 in.-NPT ports for PCV, purge solenoid, etc. * One 1/2 in.-NPT port for brake booster or IAT * Tested to over 50 psi of boost * Nitrous nozzle bosses on outboard and valley side of each runner (16 total) * Includes stainless steel hardware for installation * Provisions to run 3 different injector body lengths * Includes molded port, plenum and throttle seals * Optional Carbon pTR ultralight billet -8 AN fuel rails (sold separately) * Optional medium or short velocity stacks (sold separately)
Not Yet Reviewed
$1,399.99
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$2,199.99
Performance Design Carbon HR intake manifold lids offer owners of the Holley Ram intake models a lightweight. carbon fiber plenum upper. These top sections reduce weight, reduce heat soak, and add a unique engine aesthetic with the exposed weave cloth. Constructed from high-strength carbon fiber with high-temperature epoxy and bonded with high-temperature aerospace structural adhesive, each unit saves approximately 3 lbs. of mass versus the cast original lid. With a matching bolt pattern, the carbon plenum uppers will bolt to any existing Holley Hi-Ram, Mid-Ram, or Lo-Ram cast lowers. The throttle is moved up and rear-ward to improve the flow transition into the plenum and facilitate the carbon process. Order the model designed for your application needs. Other product features and specifications include: * Billet throttle body flange (90-105mm) * Plenum can be reversed on the Holley Ram lower * Carbon fiber-wrapped foam core plenum flange
Not Yet Reviewed
$899.99
On Sale
Performance Design XS intake manifolds break the mold of existing intake manifold architecture to maximize available space under the hood. When designing the optimum intake runner length and shape, the fuel rail gets in the way—so they moved it—inside the intake manifold! Those billet fuel rails feature an external quick-disconnect near the stock location. Testing proved these models, featuring injection-molded, glass-reinforced nylon construction, made horsepower and torque gains on a stock engine—with increasing gains as the engine got more aggressive with camshaft and exhaust upgrades! Other product features and specifications include: * Modular runners with three staggered lengths for best performance * Forward-facing throttle body flanges (90-101mm, 103mm, and 112mm) * Full assembly can be reversed on the engine * Fits under the cowl hood of a C6 Chevy Corvette * Factory MAP sensor location * PCV and canister purge solenoid OEM connections * Accepts standard EV6 LS3/LS7-style injectors * Injector extension wires pass through sealed grommets * Maximum recommended boost is 20 psi * Carbon fiber center bolt cover * Includes stainless steel hardware for installation * Includes molded port, plenum, and throttle seals
Not Yet Reviewed
$999.99
$899.99
Performance Design billet fuel rails will allow you to complete your fuel system without having to source your own fuel rail and confirm fitment. The fuel rails come with stainless steel mounting and are available in red or black anodized finishes. While these kits do include stainless steel mounting hardware, port fittings to feed or plug the rail ends will have to be sourced due to the variety of available customizations. You can forget about fitment issues with the Performance Design billet fuel rails when you order the model designed to fit your intake manifold. Select the application needed.
Not Yet Reviewed
$176.50
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$219.99
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