Sorry to sound like a noob, but I am stuck.
After owning my 03 GTP, for 10 years I started to replace some needed parts with upgrades.
Currently I have a homemade Fenderwell CAI
2.5 ZZP downpipe
2.5 ZZP stainless exhaust with Dynomax Sonic Turbo's (I did not like the ZZP mufflers the drone at 65mph was unbearable)
I replaced the Suspension New Struts , Dorman Front Sway and GMPP Rear Sway, all new Moog Links and New Lower control arms and ZZP Trailing arms.
I purchased a Scan Tool to check on KR ad to monitor, going forward.
I have been doing searches and the Safely Modding Thread. So in my plan next was PLOG , Upper Motor mount bushings then a tune.
Here is dilemma,
Just Recently I was getting some pinging and I realized I need to swap the plugs to Copper, I threw a Oxygen Sensor code on sensor two but I think that happened because of it running rich , maybe? the Wires are new and the plugs are Autolites 606 Iridiums.
So switching the plugs my Pinging went away but now I noticed a noise in the Supercharger Snout...kind of bad only at idle.
So do i Replace the Snout and drop the pulley to either 3.6 or 3.5 while I get a rebuild ? ZZP can stick the pulley system on and save the trouble of getting a puller. Then the Plog and then Tune, or do the reverse?
If I am doing to start modding the engine I would rather start with no issues. I maintained the car with Mobil One it's whole life with all proper maintenance intervals met including the supercharger oil changes at every10k.
My Goal is to have a reliable Daily Driver around 300 hp by the time I"m finished but want to do it "safely" and in stages.
Opinions, advice and questions are all encouraged.
Thanks in advance
