New GP owner

[schwags88]

Howdy everyone my names Andrew, I'm from central minnesota. I'm a new owner of a 2007 Grand Prix GT. It's got 90,000 miles on it with the 3800 GEN III engine that's supercharged and never seen a winter. I'm slowly starting to upgrade stuff on it and doing it real slow cause I've never really worked on a pontiac much so far I've done a K&N air filter (the square one that fits in the original air box) as well as a Bosch distance performance oil filter and synthetic oil. My next thigh is going to be Bosch platinum iridium no gap plugs, again I don't know to much about these engine especially the supercharger on it so any insights helpful. Sorry for the longer post.

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[Fivefingerdeathpunch]

Welcome.

I'm from the rogers area, right by cabelas.

As for the spark plugs, I'd advise you not to buy those bosch plugs. They are not what you want to run in a GM motor. Only buy AC Delco 41-101 Iridium plugs for stock/factory style plugs, they are rated to last 75-100k miles in most applications.

Our waste spark ignition system will eat platinum plugs alive and cause problems.

[schwags88]

Really didn't know that thanks I run those plugs in my other vehicle but it's an 02 explorer and I know more bout that then this. And I'm from the alexandria area

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[Fivefingerdeathpunch]

Our 3800's are picky when it comes to plugs, anything other than Iridium or copper and they do not run correctly.

The 41-101 part number is just for our cars, they should be pre-gapped already and you doublr check and toss them in the motor.

[schwags88]

Really cool I'll see if I can find them up here I figured those Bosch would be nice cause in my suv they added some power and torque figured same would happen here lol

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[Fivefingerdeathpunch]

I'm sure any napa or autozone or whatever you have up there will carry them. They are pretty popular and standard plug.

[schwags88]

Ok

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[schwags88]

Thanks

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[schwags88]

Here's a photo of mine

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[schwags88]

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[HighOctaneRacing]

I had nothing but misfires with Bosch plugs in 3800s and several other GM motors

[schwags88]

Ok so the other thing I want to do that I do to most my vehicles is a cheap but decent muffler for my exhaust system any good ideas

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[SgtMarshal]

I suggest leaving the exhaust alone. aftermarket mufflers dont sound that good, and there is no gain from doing a catback exhaust. do some headers and call it good.

[schwags88]

That much I do know and to get a decent sound you gotta spend some money but personal opinion I enjoy some noise

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[AaroGaming]

I have a Borla catback exhaust and it sounds pretty good imo, it's a Quad-tip Dual-muffler setup, but it sounds goooooooooood.