Two new camshaft sets, one for increased torqued and the other for maximized top end hp, deliver up to 25 rear wheel horsepower without changing valve springs
Anyone who has faced the challenge of changing valve springs in today's Ford 4.6L/5.4L Modular 3 Valve engines knows the difficulty involved. Not only does the swap to aftermarket valve springs require the proper tools and mechanical skills, but also additional time and money. Previously, when installing a Comp Cams 4.6L/5.4L Ford Modular 3 Valve Camshaft, the first generation Xtreme Energy profiles required the removal and replacement of 24 valve springs. Good news - there's now another option with the innovation of the XFI NSR (No Springs Required) Cam Sets For Ford 4.6L/5.4L Modular 3 Valve Engines.
The new Comp Cams XFI NSR Cam Set For Ford 4.6L/5.4L Modular 3 Valve Engines are the first truly "drop-in installation" camshafts ever created for this popular application - striking the perfect balance of performance versus installation difficulty. An excellent alternative to the regular Comp Cams Xtreme Energy For Modular Camshafts, these two new stages cam sets require no computer re-tuning; however testing has show that a mild tuning can result in power gains even greater than the normal 25 rear wheel horsepower. These camshafts are fully compatible with the factory variable cam timing (VCT) system and are designed to operate in teh stock rpm range. Stage one is designed to increase engine torque and stage two maximizes top end horsepower. Best of all, for those hardcore enthusiasts looking to achieve maximum horsepower increases and are not intimidated by having to upgrade their valve springs, Comp Cams still offers the full line-up of Xtreme Energy For 4.6/5.4L Modular 3 Valve Camshaft Sets that offer as much as 40 horsepower increases.
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