I am going to be doing a tune up to my GSL-SE soon and I was wondering if anyone had any suggestions on what I should buy. My car is bone stock, and I don't plan on doing anything drastic to improve the performance. I am planning on replacing the plugs, wires, cap, rotor, air filter, fuel filter, O2 sensor.

 

Thats basically all you need, of course oil and filter, all gear oils, and flush your coolant then make a record of when everything was changed so you know when to change it again.

 

I would upgrade the fuel filter to something higher-flowing and cleanable. Either do a drop in K&N Filter + mod the stock box or add the cone-style intake.

Do the 2nd Gen Direct Fire mod on the leading ignition, if funds permit, add an MSD 6A/6AL box, but not necessary.

New stock plugs or try B9EGV's if the car is running great.

If the trans has high mileage, try Redline HeavyDuty Shockproof oil with an additive, and a good 90W rear end oil + GM additive.

 

check battery connections and radiator cap for wear. Brake pads maybe and flush the fluids in the clutch and brake lines.

 

Pp