• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Recent content by 07killergxp

  1. 07killergxp

    Tune for my LS4

    Hey guys in October I am getting my GXP tuned in Naperville Illinois at Finish Line Performance I was just wondering if you can tell me what to expect power wise etc... anything will help I just wanna know they say they are the best in the midwest and top 10 in the country. All I have done to...
  2. 07killergxp

    Cataylic Converter delete

    hey guys i put my flowmaster 40 series on my car and im just a little disappointed in the sound would you recommend to remove the catalyic coverterto get that extra nasty sound or what do you suggest anything would help
  3. 07killergxp

    Doug Thorley Headers

    Hey guys first question I am putting true dual flowmaster 40 series on my 07 Grand Prix GXP do you think that is a good choice of exhaust. And second question is I am thinking about the purchasing the Doug Thorley Headers what kind of HP gain would that give and do you think this would be a good...
  4. 07killergxp

    hey not new to forums but new to the GP forum..

    hey guys the names chase, 23 years old, from Illinois. just thought I'd introduce myself and if you guys have any advice as to performance parts or sited for them it would be appreciated. Already have exhaust in mind and have a K&N on it so I'm good there but anything else you recommend it'll...
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