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View Full Version : LS4 Performance


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  1. how fast is a Monte ss?
  2. 160* or 180* t-stat
  3. Battery issue w 2008 GXP (still)
  4. Homemade Headers
  5. Whats the best Muffler?
  6. another exhaust question
  7. Widest Tires on Stock rims?
  8. Alternative intake setup?
  9. Labor for spring install with camber bolts
  10. Another wheel question....
  11. Killed a Vette this weekend!
  12. Interior noise
  13. buying brakes ?????
  14. Muffler Suggestions
  15. Project: GXP-TN2O (R)eserved has BEGUN!!!
  16. Funny song
  17. GXP meaning
  18. Spark Plugs
  19. I'm Back
  20. Bored..so I Made a new video
  21. When your New Girlfriend Meets your Ex....
  22. Turbo project and more..
  23. Diablo Sport Programmer for sale
  24. Farewell to LS4
  25. O2 sensor question (how many)
  26. Any Top Gear fans here?
  27. Check Engine Light.... Automatic Starter?
  28. Happy Fathers Day
  29. Back to the Track!
  30. The emblem I want on my GXP
  31. What do i need to supercharge my 3800
  32. what kind of oil should i use for the summer
  33. GXP Wheel Repair
  34. 2010 NO more LS4
  35. LS4 Cam ?
  36. SO...I thought I had a lifter going south...tap tap tap tap..but..
  37. GXP Trade in value
  38. Hope I didn't screw up!
  39. e-cutout installed
  40. GXPs with factory wheels that need tires check this thread out and save a few $$$
  41. DIY intake
  42. The Carlo Crusader Pics
  43. my burnout
  44. Hogan DownPipe Rear Flange
  45. new rotors, pads, and painted calipers
  46. Have sold the 2007 Impala SS
  47. Entered my GXP in a burnout contest today
  48. wheel question
  49. Billet Grille Problem!
  50. Service Brake Assist over DIC???
  51. 2006 Impala SS Mufflers-Flowmaster
  52. Urgent help needed
  53. Summer Oil
  54. Wideband for sale
  55. Lowering question
  56. Will 04 Comp G rims fit my 08 Grand Prix GXP ?
  57. god awful fuel economy grand prix gxp
  58. the root of our Mod problems
  59. need some help
  60. how high should i set my revs
  61. Those of You Who Have Poly Dog Bone Mounts
  62. different remote range problem
  63. I had the brakes done and there is vibration
  64. **Garage cleaning**
  65. 3 questions from a newbie
  66. 2007 Impala SS
  67. new to site
  68. Hi from Iraq
  69. FS Cold Air Inductions intake
  70. Track Day
  71. Cold Start / Tranny Question
  72. Performance Parts I think this platform needs
  73. Heat Soak Reduction w/ nitrous.
  74. Few track vids...
  75. Smooth Intake Bellow
  76. 27th All G.M. Car/Truck Show & Swap Meet
  77. I lost to an 350Z
  78. LS4 exhaust manifolds WTB
  79. Removed my fan belt
  80. Heat soak Reduction Kit sensor location?
  81. **Sold car= parts to sell!!**
  82. Random Dents--08 Lacrosse Super
  83. I Need To Figure Out How To Work On My Engine
  84. think i can end heat soak with this idea
  85. new pics of my Grand Prix GXP
  86. Stupid Question on a Catless DP
  87. In car view from my racecar.
  88. Need some people to get tuned for a group tuning and dyno
  89. Vibration
  90. BuffaLOW...SS
  91. Best mods for top end?
  92. Play in the wheels, is it normal?
  93. I'm a post whore sorry! Car weighs 3580 without driver
  94. Will a 16 or 17" wheel fit the GXP?
  95. Been a while but I'm back!
  96. Oil Bearing Tests...
  97. My Car Went To The Dyno
  98. tires goodyear question
  99. ls4 oil problem?
  100. ALL GM Carlisle Anyone???
  101. rear tire problem
  102. Got to meet a member
  103. tranny issue with 07 impala ss
  104. Question about putting new brakes on.
  105. Aux input jack
  106. SSC Lowering Springs going on Sunday, but...
  107. Need brakes??? Buy your brakes here http://www.notasponsor.com/
  108. extremly strange dealer problem help!
  109. Someday the back of the GXP will look like this
  110. how much will stickier tires affect performance
  111. Tunning #'s please
  112. A couple clean pics and the cutout
  113. Photoshoot: Mr. Burns all clean and tinted!
  114. 08 GXP mods
  115. Chime in those timing/tune #'s on na
  116. McGwires paste gold class wax-the best
  117. E.t. of BONE STOCK 06 Impala SS
  118. Memorial Day
  119. Rubber Motor Mount
  120. So here is what i have come up with????
  121. Anyone interested in my set of Hoosier 245/35/18 tires pics excellent condition
  122. Doing some massive work to my car.
  123. Royal Purple soon to be in my car (see video on first page)
  124. New Rockers for our cars...
  125. My New Tires.
  126. Diablosport, sent this to Mike and I'm still waiting. Read this guys
  127. Power Steering Fluid
  128. doing a lot of work to my car and need some help asap
  129. Help!!wet shot ls4 owners chime in please
  130. Tire Goo
  131. 2005 GXP cars read this Superchips has made support for our cars (getting test file)
  132. Head
  133. Blown tranny?
  134. IAT Temperatures
  135. Help with mufflers
  136. New member with question...
  137. Mpg
  138. SERIOUS READERS LONG!!(N2O/NA-TECH) #7 Plug FRIED!!!
  139. Question about head lights
  140. FS: Monte Carlo SS LOW MILES, CLEAN
  141. 2007 Grand Prix GXP 31k North Central PA
  142. Mechanical O2 simulator works! So far....
  143. Finally!! After 3weeks!!!
  144. MAF and Predator BRAND NEW
  145. First race in the new race car (circle track)
  146. 2006 impala ss preformance mods
  147. Electric Cutout
  148. Another Intake lol
  149. Turning Under radio opening to switch panel
  150. Happy my day at the track!
  151. DynoStorm. Check this out
  152. 2002 Monte Carlo SS Woes
  153. What is a good web site for parts?
  154. Ran 2007 Mustang cobra
  155. Is CAI ripping me off??
  156. lowering my gxp
  157. Black GXP rims
  158. Side Skirts (Rocker Panel Molding)
  159. Straight Pipes
  160. Hogan DP ?
  161. Tire opions.
  162. Will this fast 78mm intake manifold work?
  163. Cutout placement problems
  164. Electrical Gremlin?
  165. Battery issue w 2008 GXP
  166. Drag wheels/radials...specs? Where?
  167. Some Car Mods i have been working on.
  168. FS: 06 MC SS Stereo
  169. Hood protector - reinstalled
  170. LS4 Physical Dimensions
  171. Couple pics
  172. Cigarette burns :(
  173. .83 g's accel
  174. Warranty
  175. The final cam question...maybe
  176. cams on jegs
  177. 2006 impala ss
  178. trifecta custom performance
  179. Tire Dilemma
  180. Nos on a 3.8 series 2?
  181. Selling LS4 Badge
  182. Participated in a parade today...
  183. Maf??
  184. why is the top end so bad? Will tune make it better?
  185. Selling some GXP stuff.
  186. It's here!
  187. Broken valve stem/TPMS
  188. has anyone supercharged the gxp?
  189. **Diablo tuner for sale!!**
  190. lets talk weight reduction...
  191. Getting rims and tires...want some feedback
  192. window tint
  193. Radio Porblem
  194. Bye Bye Impala SS
  195. Build Sheet / RPO Sticker
  196. Track Night
  197. Drag radials
  198. Stock Stall Speed ?
  199. Anyone willing to share a tune?
  200. Does anyone have a tuner on there LS4?
  201. Need tuning suggestions
  202. DEI exhaust wrap
  203. k+n intake
  204. Strut Tower Braces - Front Fitment Issue
  205. Auto start problems?????
  206. SSC Springs - get'em while they're hot!
  207. chuckling...
  208. anyone wanna take over my lease??
  209. New Track Footage
  210. Went to the races.
  211. The BEST tranny cooler?
  212. Got a Superchips Cortex programmer
  213. Water wetter
  214. need help deciding between 2 springs
  215. Quaker State Goes Unchallenged
  216. hey
  217. question about keyless+tire sensor
  218. Welcome myself......
  219. Bye, for now, LS4 owners
  220. A letter to GM
  221. Cross Drilled and Slotted Brakes
  222. Got a Superchips Flashpaq and talked to Mike at Diablosport
  223. Cold Air Inductions-GXP-intake for sale
  224. HUD in my truck
  225. stock rims tire sizes?
  226. Summit Fully Welded Mufflers
  227. My go at a Headlight Intake
  228. Anyone need a set of GXP tips...
  229. How do you all like your LS4 cars?
  230. Caster/Camber Plates
  231. FINALLY got Brakes and Alignment Fixed
  232. Lets hear from the Impala SS
  233. getting some harland sharp 1.8 rockers
  234. "Nice" Email From Pontiac
  235. Track Prep list
  236. Anyone have a used Superchips Cortex programmer
  237. Rocker Arms
  238. Count of Monte Carlo in here
  239. smallest wheels
  240. Tips
  241. stainless steel brake line help
  242. Custom Tune People - Shift Points
  243. 60' Times
  244. GM to cut 21,000 US factory jobs, shed Pontiac
  245. GM is closing down Pontiac
  246. Went to the track over the weekend
  247. wider tires Impala
  248. Does anyone know anything about these coilovers?
  249. aftermarket wheels
  250. getting really tired of having brake issues