66-74 Chevy/GMC 1/2 & 3/4 & 1-Ton 2WD & 4WD, 67-74 Blazer/Jimmy 2WD, 66-72 Blazer/Jimmy K5/Suburban 4WD, 73-74 Blazer/Jimmy K5/Suburban 2WD & 4WD: 283-400, Tube Size 1.5", Collector Size 3"
- Fuel Economy From The Engine
- Leak Test For Max Performance
- Mandrel-Formed Power Plenum
- Leakproof O-Ringed Port Seals
- Include All Mounting Hardware
- Construced of .049 cold roll flash mild steel tubing
- Precision engineered for fit, performance and economy
- Works with factory power steering and power brakes
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