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Universal O2 Sensor Spacer Adapter Isolator ExtenderThe most restrictive part of any exhaust system is the catalytic converter. The stock catalytic converter is meant to filter the flow of exhaust gases to reduce the amount of harmful gases into the atmosphere. Because of this, lots of potential performance is restrained. High Flow Test Pipes elimina...$9.76$9.76 -
Stainless Steel M18 x 1.5mm Straight O2 Sensor Spacer Adapter Isolator Extender 1-3/8" UniversalThe most restrictive part of any exhaust system is the catalytic converter. The stock catalytic converter is meant to filter the flow of exhaust gases to reduce the amount of harmful gases into the atmosphere. Because of this, lots of potential performance is restrained. High Flow Test Pipes elimina...$9.88$9.88 -
For Nissan Altima Performance 4-1 Design Stainless Steel Exhaust Header Kit (Polished Chrome)The exhaust manifold found on the 2002-2006 Nissan Altima DOHC 4 Cylinder Engine were designed to combine the exhaust gasses from each of the cylinders quickly with a manifold that was cost effective to produce. Our 4-1 off-road racing headers are designed to allow the exhaust gasses to flow more fr...$65.88$65.88
