I need to do a tune up on my car. Just wondering what everyone includes with their tune up. I'll be changing my plugs and wires. My cars engine is stock (n/a) what spark plugs should I use? Oem, aftermarket iridium, or copper.

How hard is it to change the 04+ rear plugs and wires for that matter?

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If you don't plan on modding, stay with OEM plugs and wires.

I agree on the stock plugs & wires, plus replace the air filter. To get at the back plugs remove the dogbone motor mounts and roll the motor forward. I use a ratcheting tie down strap to hold it in place.

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Bright Red 2008 G8 GT

Mods: DRCUSTOMPARTS Center Gauge Bezel
Superchips ECM/TCM Tune- Volant CAI
Solo Axlebacks - HID's
Holden V8 Badges
My Website

Or you can climb up on the diagonal brace and motor mounts to get the back ones

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Dthreap wrote:

Yeah make sure your O2 isn't behind lazy, you want nice up and down.

Planeboy18 wrote:

^^Pro tip for more than just O2 sensor signals

acdelco plugs and autolite wires, i've tried autolites iridium plugs and there garbage, auto lite wires work great for half the price

I've got TR55s

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Dthreap wrote:

Yeah make sure your O2 isn't behind lazy, you want nice up and down.

Planeboy18 wrote:

^^Pro tip for more than just O2 sensor signals

How are they? Would they be overkill for a stock engine?

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Just get the stock plugs and thank us after 50,000 miles. Using different spark plugs won't give you more power.

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Bright Red 2008 G8 GT

Mods: DRCUSTOMPARTS Center Gauge Bezel
Superchips ECM/TCM Tune- Volant CAI
Solo Axlebacks - HID's
Holden V8 Badges
My Website

NGK TR55's aren't iridium and won't last as long on a 3800's waste ignition system as iridium's would.

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Dubs:00 VW GTI VR6, Low and Slow 91 VW GTI 8v, Shave the Bay!! 91 VW Cabriolet 8v, bitch Basket
GP's:04 GP GT, Past now G-Ma's Girlfriend's 97 GP GT, "Project Pink Power"

Wasnt going for more power...just maybe a better spark and possibly improved fuel economy

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Than stick with OEM plugs

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Dubs:00 VW GTI VR6, Low and Slow 91 VW GTI 8v, Shave the Bay!! 91 VW Cabriolet 8v, bitch Basket
GP's:04 GP GT, Past now G-Ma's Girlfriend's 97 GP GT, "Project Pink Power"

I have seen gains in gas mileage and smoothed out idle, but that might be because I needed plugs

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Dthreap wrote:

Yeah make sure your O2 isn't behind lazy, you want nice up and down.

Planeboy18 wrote:

^^Pro tip for more than just O2 sensor signals

i had the TR55IX in my car and had a good hand full of misfires so i changed it up and purchased autolites copper core and the misfires completly went away on my l26 but the change to copper core was to see if it was the plug which is a cheap test to me so before 2,000 more miles im switching back to oem

I haven't had misfires yet, but it has only been 2000 miles

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Dthreap wrote:

Yeah make sure your O2 isn't behind lazy, you want nice up and down.

Planeboy18 wrote:

^^Pro tip for more than just O2 sensor signals

Scott, what did you gap the plugs to?

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Dubs:00 VW GTI VR6, Low and Slow 91 VW GTI 8v, Shave the Bay!! 91 VW Cabriolet 8v, bitch Basket
GP's:04 GP GT, Past now G-Ma's Girlfriend's 97 GP GT, "Project Pink Power"

.60 i've checked the gap before and after installing the TR55IX plugs and still the same but my car is still running fine with the copper cores