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View Full Version : LS4 Performance


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  1. Factory Catalytic converter size
  2. Help with dtc PO315
  3. Anyone have a K&N for sale?
  4. Downshifting
  5. 07 Monte SS for Sale...
  6. Flowmaster Exhaust
  7. Rain guards and 3M double sided tape.
  8. What type of Coolant for my 2006 Monte?
  9. Turned DOD off 1000 miles ago
  10. How do you turn off auto lights?
  11. please...only turbo guys chiming in.
  12. On-Star Making Calls On Its Own
  13. I filled up with 87 and was really surprised
  14. 2002 GTP LS4 swap?
  15. The "Inferno" hood.....
  16. LS4 manifold PN anyone?
  17. Did anyone see this? Looks promising...
  18. Missing hose on intake plenum
  19. is it possible to put a 6 speed transmission in this car
  20. Going Catless, tune Question
  21. Tires
  22. Funny
  23. help with replacing antifreeze/coolant
  24. Redline Oil the competition for Royal Purple
  25. West coast GXP prices...
  26. Wheels I'm looking at anyones thoughts?
  27. I hate animals/roadkill!
  28. Had A Little Fun Getting My A$$ Kicked
  29. Hogan DP
  30. Shady? Could I get some support here from the people I've sold/bought products from?
  31. Speaker demensions
  32. Popping My Cherry At The Track
  33. How about roll call
  34. Happy 4th of July
  35. Good place to install exahusts?
  36. July 4th Clear Bra Special
  37. what's next
  38. Insurance
  39. Finally Found a Car
  40. service recall
  41. Inside of car is stinky
  42. led tailights question
  43. LS4 on TH350
  44. GXP engine light
  45. Exhaust hanger(rubber band)
  46. rockers???
  47. Help Mods
  48. When I fiirst got the SS
  49. Heat soaked maf/iat sensor
  50. Shorter Dogbones
  51. WTB: Diablo Tuner 2006 Impala SS
  52. Working on Eleanor
  53. MAF sensor position question....
  54. FS: 2006+ Monte Carlo SS front spoiler/valence - $200 obo
  55. Hawk HPS Street Brake Pads
  56. a few things for sale
  57. Rotor question and if so anyone need a good used backup set of rotors
  58. Cat and mouse with a 5 series
  59. Everyone loves a parade.....
  60. need help
  61. Anyone know where the VSS Wire is?
  62. Question about Nitrous and other parts?
  63. For those who want Headers and new intake...
  64. 14.6...really????
  65. LS4 production numbers?
  66. We need to brainstorm...Trans. heat...
  67. how fast is a Monte ss?
  68. 160* or 180* t-stat
  69. Battery issue w 2008 GXP (still)
  70. Homemade Headers
  71. Whats the best Muffler?
  72. another exhaust question
  73. Widest Tires on Stock rims?
  74. Alternative intake setup?
  75. Labor for spring install with camber bolts
  76. Another wheel question....
  77. Killed a Vette this weekend!
  78. Interior noise
  79. buying brakes ?????
  80. Muffler Suggestions
  81. Project: GXP-TN2O (R)eserved has BEGUN!!!
  82. Funny song
  83. GXP meaning
  84. Spark Plugs
  85. I'm Back
  86. Bored..so I Made a new video
  87. When your New Girlfriend Meets your Ex....
  88. Turbo project and more..
  89. Diablo Sport Programmer for sale
  90. Farewell to LS4
  91. O2 sensor question (how many)
  92. Any Top Gear fans here?
  93. Check Engine Light.... Automatic Starter?
  94. Happy Fathers Day
  95. Back to the Track!
  96. The emblem I want on my GXP
  97. What do i need to supercharge my 3800
  98. what kind of oil should i use for the summer
  99. GXP Wheel Repair
  100. 2010 NO more LS4
  101. LS4 Cam ?
  102. SO...I thought I had a lifter going south...tap tap tap tap..but..
  103. GXP Trade in value
  104. Hope I didn't screw up!
  105. e-cutout installed
  106. GXPs with factory wheels that need tires check this thread out and save a few $$$
  107. DIY intake
  108. The Carlo Crusader Pics
  109. my burnout
  110. Hogan DownPipe Rear Flange
  111. new rotors, pads, and painted calipers
  112. Have sold the 2007 Impala SS
  113. Entered my GXP in a burnout contest today
  114. wheel question
  115. Billet Grille Problem!
  116. Service Brake Assist over DIC???
  117. 2006 Impala SS Mufflers-Flowmaster
  118. Urgent help needed
  119. Summer Oil
  120. Wideband for sale
  121. Lowering question
  122. Will 04 Comp G rims fit my 08 Grand Prix GXP ?
  123. god awful fuel economy grand prix gxp
  124. the root of our Mod problems
  125. need some help
  126. how high should i set my revs
  127. Those of You Who Have Poly Dog Bone Mounts
  128. different remote range problem
  129. I had the brakes done and there is vibration
  130. **Garage cleaning**
  131. 3 questions from a newbie
  132. 2007 Impala SS
  133. new to site
  134. Hi from Iraq
  135. FS Cold Air Inductions intake
  136. Track Day
  137. Cold Start / Tranny Question
  138. Performance Parts I think this platform needs
  139. Heat Soak Reduction w/ nitrous.
  140. Few track vids...
  141. Smooth Intake Bellow
  142. 27th All G.M. Car/Truck Show & Swap Meet
  143. I lost to an 350Z
  144. LS4 exhaust manifolds WTB
  145. Removed my fan belt
  146. Heat soak Reduction Kit sensor location?
  147. **Sold car= parts to sell!!**
  148. Random Dents--08 Lacrosse Super
  149. I Need To Figure Out How To Work On My Engine
  150. think i can end heat soak with this idea
  151. new pics of my Grand Prix GXP
  152. Stupid Question on a Catless DP
  153. In car view from my racecar.
  154. Need some people to get tuned for a group tuning and dyno
  155. Vibration
  156. BuffaLOW...SS
  157. Best mods for top end?
  158. Play in the wheels, is it normal?
  159. I'm a post whore sorry! Car weighs 3580 without driver
  160. Will a 16 or 17" wheel fit the GXP?
  161. Been a while but I'm back!
  162. Oil Bearing Tests...
  163. My Car Went To The Dyno
  164. tires goodyear question
  165. ls4 oil problem?
  166. ALL GM Carlisle Anyone???
  167. rear tire problem
  168. Got to meet a member
  169. tranny issue with 07 impala ss
  170. Question about putting new brakes on.
  171. Aux input jack
  172. SSC Lowering Springs going on Sunday, but...
  173. Need brakes??? Buy your brakes here http://www.notasponsor.com/
  174. extremly strange dealer problem help!
  175. Someday the back of the GXP will look like this
  176. how much will stickier tires affect performance
  177. Tunning #'s please
  178. A couple clean pics and the cutout
  179. Photoshoot: Mr. Burns all clean and tinted!
  180. 08 GXP mods
  181. Chime in those timing/tune #'s on na
  182. McGwires paste gold class wax-the best
  183. E.t. of BONE STOCK 06 Impala SS
  184. Memorial Day
  185. Rubber Motor Mount
  186. So here is what i have come up with????
  187. Anyone interested in my set of Hoosier 245/35/18 tires pics excellent condition
  188. Doing some massive work to my car.
  189. Royal Purple soon to be in my car (see video on first page)
  190. New Rockers for our cars...
  191. My New Tires.
  192. Diablosport, sent this to Mike and I'm still waiting. Read this guys
  193. Power Steering Fluid
  194. doing a lot of work to my car and need some help asap
  195. Help!!wet shot ls4 owners chime in please
  196. Tire Goo
  197. 2005 GXP cars read this Superchips has made support for our cars (getting test file)
  198. Head
  199. Blown tranny?
  200. IAT Temperatures
  201. Help with mufflers
  202. New member with question...
  203. Mpg
  204. SERIOUS READERS LONG!!(N2O/NA-TECH) #7 Plug FRIED!!!
  205. Question about head lights
  206. FS: Monte Carlo SS LOW MILES, CLEAN
  207. 2007 Grand Prix GXP 31k North Central PA
  208. Mechanical O2 simulator works! So far....
  209. Finally!! After 3weeks!!!
  210. MAF and Predator BRAND NEW
  211. First race in the new race car (circle track)
  212. 2006 impala ss preformance mods
  213. Electric Cutout
  214. Another Intake lol
  215. Turning Under radio opening to switch panel
  216. Happy my day at the track!
  217. DynoStorm. Check this out
  218. 2002 Monte Carlo SS Woes
  219. What is a good web site for parts?
  220. Ran 2007 Mustang cobra
  221. Is CAI ripping me off??
  222. lowering my gxp
  223. Black GXP rims
  224. Side Skirts (Rocker Panel Molding)
  225. Straight Pipes
  226. Hogan DP ?
  227. Tire opions.
  228. Will this fast 78mm intake manifold work?
  229. Cutout placement problems
  230. Electrical Gremlin?
  231. Battery issue w 2008 GXP
  232. Drag wheels/radials...specs? Where?
  233. Some Car Mods i have been working on.
  234. FS: 06 MC SS Stereo
  235. Hood protector - reinstalled
  236. LS4 Physical Dimensions
  237. Couple pics
  238. Cigarette burns :(
  239. .83 g's accel
  240. Warranty
  241. The final cam question...maybe
  242. cams on jegs
  243. 2006 impala ss
  244. trifecta custom performance
  245. Tire Dilemma
  246. Nos on a 3.8 series 2?
  247. Selling LS4 Badge
  248. Participated in a parade today...
  249. Maf??
  250. why is the top end so bad? Will tune make it better?