View Full Version : LS4 Performance


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  1. Cold Air Intake?
  2. GXP fuel mileage
  3. High Idle - Cold Start Warmup
  4. WHO Dat
  5. Gold bow tie replacement....
  6. Stock SS wheels needed
  7. DIY!!Bulb repacement for heater control unit!!!
  8. vss wire
  9. Lost Again
  10. tire pressure sensors for cheap?
  11. my engine mount is destroyed
  12. Texas LS4 Meet
  13. Power steering pump
  14. Custom Engine plaque
  15. For the couple Texas members here...
  16. Ported LS4 Intake Manifold
  17. Tuners
  18. Fasterproms Ported LS4 Intake Manifold
  19. Back from "Cobalt Hell"
  20. Anyone have FOOSE Challenger rims?
  21. Converter issue... trans on its way out... surprise surprise...
  22. GP to Bonneville spring swap?
  23. Z06 front brake conversion on GXP
  24. Just looking out for fellow Members...
  25. why does my Impy SS roll like a manual tranny?
  26. New to LS4 community
  27. Wheel opinion
  28. New RIMS
  29. my new ss.
  30. To EVERYONE that has had tranny problems,
  31. So I was at the motor show yesterday...
  32. Questions about impala SS
  33. GXP Fiberglass Hood for sale w/ pics
  34. Rear Caliper Slider Bolts
  35. Gm High Tech magazine
  36. key fob with remote start question
  37. Your never going to believe this!!
  38. Oil Catch Can for excessive oil leaking in intake manifold
  39. transmission recall...
  40. Anyone interested in a Diablo Predator
  41. Oil pan gasket...where to find a higher end one
  42. LS4 Belt tensioner replacement... what a pain!!!
  43. Impala SS 2006 Surprising DYNO numbers!
  44. LED Tails
  45. WTB: Poly Dog Bone Bushing
  46. I have a stupid question.
  47. Whats up eveyone!
  48. Spintech Cat Back Installed -Video-
  49. I have the greatest dealer
  50. HID alternative?
  51. Torque Thrust Wheels
  52. thinking of switching cams
  53. any intrest in stock parts?
  54. Possible Ignition
  55. Emblems
  56. not very happy with impala
  57. Another tranny thread, problems at 37,200.
  58. World of Wheels pics
  59. So this was not expected...
  60. NFC Champions!!!!!!
  61. Mod plans...
  62. where to buy a hogan catless dp
  63. diy intake and feels like i lost power
  64. Off-Topic: Stub-Hub
  65. my tranny is starting to slip.
  66. rpm drop in 2nd gear
  67. Joined the Bad Tranny Club
  68. Source of stainless steel fittings?
  69. What are ls4 front drives classified as?
  70. GXP spare tire
  71. new avatar test
  72. flipped motor mount, how to.
  73. '09 Impala - rear squeaks going over speed bumps
  74. Steering Problem...
  75. GXP Nav
  76. IPod to GXP Nav unit
  77. *** FOR SALE *** U7191 DiabloSport Predator...
  78. Is the stock TB a limiting factor for a bolt-on car?
  79. GXP Front LH side Fender?
  80. rev limiter??
  81. Would this fuel rail fit a LS6 Intake?
  82. Please name these wheels ...
  83. Opinions WANTED! Dont you hate.....
  84. LS6 swap throttle body
  85. Impala SS vs Charger r/t
  86. Why'd you have to start shit Mel?
  87. Muffler Fit Question
  88. grand prix trunk mat
  89. Leaking power steering hose
  90. rear suspension?
  91. CAI Dyno Numbers?
  92. feeler, anyone want the stock navigation system?
  93. New Guy
  94. Thinking of buying a LS4
  95. Funny video
  96. hey mel need your help
  97. Another GXP Traded In for G8
  98. Impala Console Removal
  99. Another Mustang Kill
  100. quick answer about Don Romes stbs
  101. $150 a piece, take your pick
  102. World of Wheels
  103. Monsoon Stereo
  104. winter MPG
  105. GXP owners please step in
  106. D-I-Y shift kit observations
  107. 918 springs or dual springs valvetrain questions
  108. auxilary input for a gxp
  109. port & polish stock heads or aftermarket heads
  110. Modifying fuel rail, bending it
  111. Taller fuel injectors, higher rates?
  112. North America's LS4 Calendar pics
  113. FAST 92mm intake swap need help and info get ready to see it done
  114. North America's LS4 Calendars are in!!
  115. Transmission dead 41k miles
  116. SS Cop Cars?
  117. OPSU relocate But Where?
  118. Aftermarket Warranty
  119. Good S.E. Mich Transmission shops???
  120. Who else is bugged....
  121. E-brake problem
  122. Steering recall on 2006 Monte Carlo SS
  123. Would you buy a gxp with 100,000 miles?
  124. Those of you with rockers and rods
  125. New Wheel Bearings, And Bonus Stabilizer Bushings
  126. 2007 gxp
  127. Question
  128. Strange noise
  129. Oil pressure problem
  130. Estimated WHP increase w/ 3 mods - 09 SS
  131. GXP Aftermarket Rims
  132. What is our normal fuel pressure?
  133. Fuel rail Modification Whats it made of?
  134. Happy New Year!!!
  135. ADD OIL Light
  136. another transmission question
  137. stb issue
  138. 3rd Brake Light
  139. For those of you that have cutout on the gxp
  140. Dale Earnhardt Jr Killer wheels..... Anybody got em?????
  141. Badge Measurement
  142. How many G's Have You Pulled?
  143. Tran failure (nothing new) Possibly saying good bye though..
  144. catless dp
  145. Cai dimentions
  146. Borla exhaust?
  147. Exhaust cutout
  148. WTB fuel Rail
  149. LS6 or LS1 Manifold swap thoughts Questions
  150. Merry Christmas everyone!
  151. need a big favor
  152. Chrome plated grille
  153. Air Filter Question
  154. 2K6 Impala SS 6 Disc Changer Issue
  155. Which ls4 to get?
  156. quick question for the guys with HP tuners.
  157. What i did today
  158. LS4 Calendar on Sale Now
  159. 2000-2005 Monte Carlo headlights and tails for sale
  160. GXP Exhaust or Mufflers??
  161. Paypal Scam
  162. LS4 guys help with W-body.
  163. Anyone want the dyno results from my intake swap?
  164. rim and tire bargin
  165. New driveby...Hogan DP + Cutout
  166. lowering
  167. Hows it going... Newbie
  168. Recall for GXP
  169. got another Impala SS
  170. Help! 2005 GTP Monsoon speaker popping noise!
  171. North America's LS4 2010 Calendar
  172. Evil Mr. Winter came to NOVA/DC/MD/VA area, Poor Gxp has been abandoned...
  173. I would like to apologize for the other thread. (Paint opinions, not like the other)
  174. 05 GXP with heater control issues
  175. Let the hate and flames flow, pics of my car.
  176. Interested in TB spacer or adapter
  177. Looking at getting a gxp?
  178. Gauge Pods
  179. Got my Cutout! Brand,Placement, Sound, Vids, Pictures, Mods ect.
  180. LS6 throttle body
  181. Yearly reminder of the 'mistatements' from Diablosport
  182. Little slip in my tranny @ 54,445 miles
  183. tire size
  184. craigslist find
  185. World of Wheels
  186. couple problems with the gxp
  187. Every error you can think of just popped up....
  188. WTB Monte Carlo Foglight Trim
  189. Used W-Bodies
  190. the delcos dead
  191. Possible Transmission Failure in the works (again)
  192. its that time again
  193. Normal/Average Engine Coolant Temp...
  194. 05 gxp cai??
  195. Do Mustang Wheels fit? (sorry)
  196. 2007 Impala ls modding
  197. HID ballast mounting?
  198. Need Muffler Help!
  199. pretty impressed!!
  200. Dyno Chart DISCUSSION thread
  201. Dyno Charts Go Here
  202. Any Dyno mumbers with a Cam?
  203. Spare Tire for '08 GXP ??
  204. 2010 Calendar
  205. LS4 cam specs
  206. I miss the GXP, mostly, the TURBO :(
  207. tranny :(
  208. New Tires for me 2
  209. TPMS and 2008 GXP question
  210. Help me sort out whats true
  211. Should Diff Score Be this intrusive?
  212. Rear Defogger ?
  213. Need some help deciding on a Hand-held tuner
  214. For those worried about voiding your warranty when modding READ!
  215. For those who have done the intake swap already
  216. issues with stage 2 intake so i am putting an ls6 intake and headers on
  217. Cutout questions
  218. car bogging
  219. Question for you guys???
  220. Any way to make a ram air intake?
  221. Most Fun in a FWD
  222. Shocks and springs?!?!
  223. Tire Size Dilemma
  224. 5300 LS4 into a Grand Prix GT
  225. Cardi Gras benefit for Cystic Fibrosis
  226. for those of you who store you MCSS: car cover
  227. Look What I've Found
  228. Finally got some good 1/4 mile times w/VIDS
  229. crankshaft dimensions
  230. Am I The First Here?...
  231. Will 265 or 275 tires fit on stock rims?
  232. Successful LS6 Intake Manifold Swap, DOD Retained
  233. Escort Qi45 Finally Available
  234. Happy Thanksgiving
  235. My New Snow Boots
  236. GXP got crunched
  237. Odd Hesitation
  238. traded in the SS for a Hybrid Prius
  239. Nitrous Users
  240. 07 GXP alignment problem
  241. New Winter tires.
  242. Confirm my bad news... Tranny Problem
  243. supercharger question/suggestion
  244. Intake Installation Question
  245. Transmission Labor Costs
  246. Subs
  247. GXP Front Brakes Keep Warping
  248. problem with low beams
  249. Looking for pictures of stock manifolds
  250. What's my Impala SS worth?