Even as modern muscle machines increase in sophistication, tried-and-true modification methods continue to release trapped horsepower. Such is the case with Holley’s iNTECH cold-air intake system for Chevy’s latest Camaro. Even though the 6.2L belts out 455 horsepower, Holley discovered there’s room for improvement before the air hits the small-block’s throttle body. We traveled to Holley’s R&D facility in Bowling Green, Kentucky, to see their latest offering and how it installs using their in-house Camaro SS.
Holley’s attention to detail is noteworthy. From the durable roto-molded housing and tubing to the unique, patent-pending “Slip-Seal” housing/filter/tube interface, it’s clear that Holley did their homework. The iNTECH system uses an oil-free, four-layer dry filter element so there’s no risk of damaging the MAF sensors and setting off the check engine light, as some “wet” filters can. Even the surface finish was chosen so it integrates nicely with the engine compartment.
On the dyno, the iNTECH system picked up nearly 19 horsepower and 21 lb-ft of torque. Not bad for about an hour’s work. Follow along for the details.
1. Holley’s iNTECH cold-air intake system features excellent attention to detail. It features a durable roto-molded housing and tubing; a unique “Slip-Seal” housing/filter/tube interface; and an oil-free, four-layer dry filter element. Holley’s “Slip Seal” interface allows the intake tube, filter, and housing to connect without any clamps or adapters for a foolproof, leak-free seal.
2. The iNTECH system replaces all the OEM parts from the throttle body to the airbox, and utilizes all the factory attachment points.
3. The washable and reusable, four-layer dry filter is encased in an enlarged filter housing that draws air from the OEM cold-air scoop.
4. We began removing the OEM air intake system by releasing the sound hose from the clamp on the OEM airbox.
5. Next, we unplugged the connector from the MAF sensor.
6. We disconnected the breather hose by squeezing the gray tabs on the fitting and pulling up.
7. Using pliers, we squeezed the spring clamp to remove the sound tube fitting.
8. Next, we loosened the clamps to the throttle body and the airbox.
9. With everything disconnected, we removed the OEM air intake system from the Camaro.
10. With the OEM components removed, we compared the OEM parts to the Holley setup. What’s immediately clear are the different filter types: the OEM setup uses a flat-panel filter whereas the Holley system uses a huge conical, four-layer filter inside a larger airbox.
11. Before installation of the Holley iNTECH system, we needed to transfer a few things from the OEM intake tube over to the Holley intake tube. First, we used a screwdriver to loosen the clamp retaining the sound tube fitting and removed it.
12. The supplied grommet is installed into the Holley intake tube before the sound tube fitting is pushed into place. If the fit is a bit tight, try a little spray lubricant to ease the situation.
13. Next, we transferred the MAF sensor from the OEM intake tube to the Holley intake tube and secured it with the supplied screws.
14. Next, we installed the supplied breather fitting into the Holley intake tube.
15. The supplied inlet air scoop inserts into the Holley airbox.
16. The Holley four-layer reusable filter is then slipped into the airbox.
17. Next, we installed the airbox into the engine compartment by aligning the air scoop to the existing ducting and pushing firmly down to seat the airbox mounts into the OEM grommets.
18. We then slipped one of the clamps over the supplied silicone coupler and slipped it over the throttle body.
19. We then inserted one end of the intake tube into the air filter.
20. With the intake tube fully seated inside the air filter, we rotated the intake tube toward the throttle body while fitting the coupler around the intake tube.
21. With the remaining clamp completely open, we installed it around the coupler and tightened it loosely by hand.
22. After checking the fitment of all the components, we tightened the two clamps.
23. Then we used the pliers to reinstall the sound tube hose.
24. Next up, the breather hose is installed onto the fitting.
25. Finally, we reconnected the MAF sensor harness.
26. The Holley iNTECH cold-air intake system integrated nicely with the OEM surroundings in this Camaro SS’s engine compartment.
27. Chassis dyno testing revealed healthy gains of 18.94 hp and 21.46 lb-ft at the rear wheels. The power and torque traces are shifted upward everywhere, which translates to a great seat-of-the-pants improvement in every gear.
Photos: Wes Duenkel