View Full Version : LS4 Performance


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  1. Very O/T: Who's your cell provider and what's your speed test results?
  2. Wrecked and some what fixed SS
  3. People with metal catch cans...
  4. 4T65E-HD Delayed engagement fix
  5. Oil burning TSB
  6. Impala modded up - 6.0L, RWD swap!!, cost a lil over 20k
  7. O/T** POS Rental Cars
  8. safe to drive on trip
  9. Resonator Removal Questions
  10. Need your opinion
  11. quick question,
  12. Trans problem "HELP"
  13. Bumper decision for my single exhaust?
  14. Is This Worth $5,000 lol
  15. Spotted a LAX super yesterday!!
  16. Holley LSFest 2011 - Who's going?
  17. LS4 2011 Calendar Proof
  18. Wonky heating & cooling
  19. drag radials
  20. Just got the car back...
  21. exhaust ?
  22. Cranking noise when i turn on my gxp
  23. Vent thread. Front wheel hubs went bad.
  24. Rims for my GXP
  25. Anybody interested in a DIY Coilover kit ?
  26. Bilstein Struts
  27. I weighed my car yesterday/winter blend
  28. Cleaning: tire dressing and interior cleaning
  29. New DD impala
  30. 225/55/18 all around?
  31. First big run
  32. Stock Nav System
  33. Help Please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  34. Strut tower brace
  35. battery issue
  36. HVAC Lights
  37. New shell race gas
  38. Stock cam HP dropoff
  39. ls1 intake
  40. GXP 255 guys ?'s
  41. Thanks Joeiles
  42. Advice on getting better mileage?
  43. Dead battery, ugh!
  44. exhaust project
  45. free GXP magnaflow exhaust
  46. choice to be made
  47. Someone help i got a issue with my grand prix gxp
  48. Before and after dyno numbers (headers)
  49. winters coming
  50. Americas LS4 2011 Calendar
  51. Add me to the tranny list
  52. Intake and Exhaust Manifolds
  53. Is it possible to run 305s?
  54. ecutout blowing fuse
  55. downpipes
  56. About to buy a GXP
  57. Converted my car to a cheap Impala LS
  58. Scuffed an Alcoa
  59. Any one had any luck.....
  60. Installed DDM HIDs 35w 5000k
  61. Well, think I spoke to soon.. tranny acting up this morning... uugghhh!!
  62. MissingThread
  63. DOD AFM question
  64. An alternative for those with problems with the window pillars...
  65. Tint: 35% front doors, 20% back doors, what % rear? Pics?
  66. dynomax catback for GXP??
  67. interior question
  68. Well... it finally happened....
  69. Strut help!
  70. e85
  71. low buzzing noise from dashboard
  72. Americas LS4 2011 Calendar Question
  73. O/T 280zx restoration
  74. early X-mas present and early Shit-mas present
  75. what you guys think about these?
  76. running lean
  77. ls2 intake?
  78. Need INFO ON this person
  79. ram air hood
  80. Code on GXP
  81. sweet commercials
  82. Anybody else having problems with LS1Tech?
  83. thinking about running a 75 shot
  84. Mach 1 Race
  85. change the lean situation
  86. Lucky me, unlucky Mustang
  87. Project 2005 GP GXP
  88. Calendar?? did it ever get printed?
  89. programmer for 05?
  90. Which size rim....
  91. Build Update
  92. Transmission...what parts to get
  93. help? car wont start...
  94. GXP Grill removal
  95. thanks
  96. superchips 2865
  97. DP You were right
  98. Need opinion's
  99. Driving lights? You'll love this...
  100. need help finding some exhaust parts
  101. ZZP Shift Kit on Sale Black Friday
  102. black friday deals at wbodystore.com
  103. Need some wiring help!
  104. Someone help ASAP please. Belt tensioner
  105. Racing on the 215
  106. How many of you guys spray??
  107. GXP Fender Signal Write-Up
  108. What to get for X-Mas for the MC
  109. coolant leak HELP!!!!!
  110. I am new - and i have been on other Forums
  111. 255 45r18 on a Monte Carlo SS
  112. Happy Thanksgiving
  113. I have a crazy idea....light-up portholes!
  114. Injectors, where to buy?
  115. O/T: This '00 GTP worth $500?
  116. Did your parents have cool cars when you were a kid?
  117. Pimp (un-Pimp?) my Buick!
  118. Pirelli Pzero Nero All Season 235/50/R18
  119. Just bought some DDM HIDS
  120. Transmission line leaking. Help
  121. I raced a CTS-V
  122. Why did the LS4 have to go away?
  123. Trans shudder
  124. Anyone have this problem?
  125. help, smoked another convertor
  126. Off Topic: Winter project car
  127. 3800 V6 Explosion?
  128. FINALLY gonna dyno Paula
  129. Time to go...
  130. Yenko Camaro
  131. Hornblaster Horns Installed on Impy SS
  132. Tire size
  133. Hey!!
  134. Lumbar Problem... intelligence needed!
  135. Off Topic, buddies 2011 5.0 runs 12.1 stock
  136. Stock Down Pipe
  137. Anybody NOT activate the OnStar?
  138. Mileage
  139. Thinking about buying this car...
  140. dumb question i need help with
  141. Factory Navigation Update
  142. alcoa wheel
  143. Need some advice....
  144. Redoing my exhaust as well.
  145. 40 series flowmasters
  146. LED Lights
  147. raced a g8 gxp and grand prix gxp
  148. Today Was A Good Day
  149. Had some fun raping a R/T Challenger.
  150. GM Heritage Center Free Restoration Information Kits
  151. HID HELP for GP
  152. quick manifold swap questions.? LS1
  153. ls4 mod, tune, swap, add-on questions
  154. A picture to share
  155. Different color front parking/signal bulbs
  156. Cleaning the Rotors?
  157. Been a While!!!
  158. 2nd to 3rd shift
  159. factory monsoon stereo system glitch
  160. Navagation Retrofit MCSS??
  161. 4T65E-HD Slips off the line
  162. monte ss vs camaro llt or v6
  163. spare tire?
  164. Dual Climate zone issue
  165. Hood Questions MC SS
  166. 1st drag pass in the Buick
  167. Going after a friends RT. need suggestions
  168. dog bone and poly mount
  169. does tire repair kit ruin tpm?
  170. Track results
  171. well guys i think the tranny may be slipping??
  172. dumb thing i did
  173. A New friend
  174. GXP vs Mustang animation trash talk
  175. them halo headlights!!
  176. bridgestone 960 pole positions
  177. A little Rage!!
  178. I need Magnaflow pics
  179. Running Rich
  180. New GXP, Tuning Problem
  181. Resonator??
  182. Jet Performance chips
  183. Eagle RSA vs Goodrich G Force KDWS
  184. Running lean??
  185. hankook tiers
  186. Finally Got Tinted!!!!!!!!
  187. Heated Seats FTW!
  188. Cheap price HIDs
  189. 2005 gxp tune questions
  190. Ls4 Shirts! Almost gone!
  191. After Cleaning MAF, whats proper way to reset.
  192. little tiny scratches all over top of GXP's headlamps?
  193. Dont kill me, but I have an LS1 intake swap question
  194. Diablosport Predator vs Trinity
  195. Hood Insulator?
  196. AutoX Videos
  197. 3.29s or stock?
  198. Trans Shift Kit Help!!!!
  199. Transmission Cooler - MUST READ
  200. Spina Bifiada Carshow
  201. What kind of plug wires do you run
  202. shift kit
  203. Mounting Transmission Sensor
  204. Finally in the 13's
  205. DT Headers or Hogan DP?
  206. DOD Light
  207. Brakes: Just noticed this today
  208. Wiring Colors and Locations
  209. Headlights cloudy
  210. Battery: Current draw???
  211. stupid question.
  212. I googled
  213. Navigation in GXP
  214. Turbo timer
  215. exhaust/fuel question
  216. Possible Solution to the 4 CYC Rattle Issue
  217. Something GOOD can get BETTER
  218. Buy a GXP?
  219. 2008 GXP Paint Code
  220. Creaking GXP Sunroof, suggestions ?
  221. any info on a Throttle body spacer
  222. another new guy with the MCSS
  223. Dyno Tune Michigan Area
  224. tranny slippin
  225. You might own a LS4 if....
  226. Weird noise
  227. Need a new FWD winter car.
  228. Pop noise
  229. Deeeeaaaaaddddd Batttery!!!!
  230. Thanks JDMC5
  231. Dyno Tune at New Era Performance
  232. tranny cooler
  233. Just Stumbled on This..
  234. transmission
  235. LS4 Shirts
  236. "bog" under acceleration
  237. vibration at 55-65
  238. Another new GXP owner
  239. Factory Radio for sale
  240. Equipped or Stripped? List the options on your LS4
  241. High Beam issues
  242. Any Chicagoland/ NW Burbs LS4 cars ?
  243. New daily driver
  244. Final Weekend
  245. Pumpkin pic
  246. Bluetooth option
  247. new member with a mcss
  248. Saw a bad ass Monte Today.
  249. Damn it!!!!!!!
  250. HID Headlight/foglight connector review