Reliability
Spark plugs
Fixes misfires
Medium$60–$1501.5–3 hrs
Home › Nissan 350Z
Nissan 350Z mods
Start with fresh spark plugs, then add an intake and a cat-back for sound. 2003–2006 cars have the VQ35DE engine and 2007–2009 cars have the VQ35HR, and a few parts are different, so pick your year below.
Your 350Z
Pick your year so we only show parts that fit your car.
In the US, 2003 350Zs were coupes only and 2009 350Zs were roadsters only. 2003–2006 cars have the VQ35DE engine, 2007–2009 the VQ35HR.
Engine 3.5L V6 (VQ35DE / VQ35HR)
Stock ~287–306 hp
Weight ~3,200–3,400 lb
2003–2009
Power
Cold air intake
+5–10whp est.
Medium$270–$3402–3 hrs
Sound
Cat-back exhaust
+3–8whp est.
Hard$420–$6003–5 hrs
⚠ Old exhaust nuts are often rusted. Soak them in penetrating oil the night before, and use 6-point sockets so you don't round them off.
Handling
Coilovers
Handling + stance
Hard$1,195–$1,4005–7 hrs
⚠ Coilovers change the alignment a lot. Get a professional alignment right after installing them.
Brakes
Brake pads + fluid
Firmer pedal
Medium$150–$3502–3 hrs
⚠ Brakes are safety-critical. If you've never done brakes, have someone experienced check your work before you drive.
Horsepower numbers are estimates at the wheels (whp) based on typical results. Real gains vary. Some exhaust and emissions mods aren't street-legal everywhere, so check your local rules.