The XS Intake Manifold breaks the mold of the 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 we moved it….inside the intake manifold! After testing all the mainstream manifolds available, our manifold has done what no other did…make horsepower and torque gains on a stock engine with gains increasing as the engine got more aggressive with cam and exhaust upgrades. All other manifolds lost on HP or Torque to make the gain on the other.
The XS intake manifold fits all LS3-style cylinder head ports including L92, L99, L76, L77, LY6, LY2, L20, LMF, LC9, LH8, LH9, L9H and L94.
Even with the additional features and components required for this unique design, Performance Design is able to offer this intake manifold at a price significantly less than existing products on the market.
Specifications & Features
-Injection molded glass reinforced nylon construction
-Modular runners with 3 staggered lengths for best performance
-Billet fuel rails* with external quick disconnect near stock location
-Accepts standard EV6 LS3/LS7-style injectors
-Injector extension wires passed through sealed grommets
-90-103mm or 112mm forward facing throttle body flange (throttle body not included)
-Carbon fiber center bolt cover
-Factory MAP sensor location
-PCV and Canister Purge Solenoid OEM connections
-Includes stainless steel hardware for installation
-Includes molded port, plenum and throttle seals
-Intake can be reversed on the engine
-Fits under the hood and cowl of a C6 Corvette
-Max recommended boost: 20psi
-Plenum volume: 16.4L
-CARB E.O. application in process
Average Rating: (From 4 Reviews):
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Pulls hard and steady...
From SS WOT of DENHAM SPRINGS, Louisiana on .
Certainly not a drop in, but my effort was rewarded. As the title says, hard and steady. And as I was toping things up with billet coil covers. PD released the 90° fitting which allowed me to finish. Also stand behind their product and responded to all my questions.
XS LS3 Intake Mainfold
From Richard Strickland Jr of NEW BERN, North Carolina on .
When installing on a 2010 Chevrolet Camaro, it was a bit more difficult than expected but happy with the gains; I previously installed a stage II cam, stainless works headers and tune, went from 356hp, 377tq to 407hp and 386tq. Performance has improved and looking to see how it does in the 1/4 mile.
Outstanding Performance!
From Anonymous of Virginia Beach, Virginia on .
I'm VERY happy with the results I got with this manifold. I ordered the 112mm version. My LS3(prior to install) produced 394whp 369trq. Once we installed the XS manifold with some tuning we were able to dyno at 424whp 376trq. Great improvements in the powerband. A+ intake manifold!
Xs ls3 intake
From Braylen Bennett of Victorville, California on .
Best intake on the market that keeps your low end torque and hp, yet it still makes gains over 7,000 rpm. Definitely worth the buy for that price
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Carbon fiber exposed to UV will exhibit some resin yellowing over time. While our experience has been that in most cases the changes over time has been less than expected, in some cases with more exposure this is accelerated. If your application will be
| Option | SKU | Price |
| Throttle body size: 90-103mm | 70715.01 | $999.99 |
| Throttle body size: 112mm | 70660.01 | $999.99 |
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