Exhaust System Guide 2002-2004 Nissan Altima 3.5SE
Exhaust System Guide 2002-2004 Nissan Altima 3.5SE
Preparation to remove Intake manifold, tools requirement : 1) ½” Socket Wrench 2) Metric Deep Sockets (10mm/12mm/14mm especially) 3) 12mm / 10mm Offset Wrench (Craftsman) 4) ½” Torque Wrench or Breaker Bar (Used to get leverage and torque to remove stock manifolds and precats) 5) 12? ½” Socket extension and 3? 1/2? Socket Extension. Disconnect the negative cable to the battery and remove the plastic engine cover (4 screws). Remove the 12mm and 10mm bolt on top of your intake manifold and move the VIAS solenoid and EVAP canister to the side (DO NOT DISCONNECT TUBES).
After removing the two devices, put both screws back into intake manifold so you will not loose them. This will give you access to the main bolts below. Don’t mess around skimming over the little details as they WILL be the ones to bite you in the ass in the days to come troubleshooting any issues with your header installation.
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