View Full Version : LS4 Performance


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  1. RE: CalSpeed Headers
  2. Tire Question
  3. Wheel Opinion Needed.
  4. Inferno Hood
  5. Gears
  6. Lowering spring questions.
  7. Me vs New Camro (rematch video)
  8. Wheel Clarification
  9. RPM Dependent Whine
  10. Shift Kit Question
  11. Lost to a 08 INFINITY G35x
  12. Bought some new parts for the car
  13. PO121: Bad Throttle Position Sensor
  14. Brand new to the LS4 World
  15. what do i need to rebuild my tranny
  16. anybody have their stock tune?
  17. bypassing radiator with a cooler
  18. new track times
  19. intake mani swap help.
  20. Any DOD Cams?
  21. Car Camera Mounting Options
  22. Exhaust manifold question
  23. Finished the ls1 swap.
  24. map extension
  25. light weight ls4
  26. maf sensor
  27. throttle body
  28. Me vs 3.8 Genesis
  29. 2007 Monte Carlo SS F/S
  30. tensioner pulley
  31. 2006 Impala SS VS 2011 Mustang V6
  32. Ipod jack
  33. Need Opinions & Answers....
  34. manifold swap help
  35. UPDATED 11/1/2012: LS4 Headers from CalSpeed Coming Soon!
  36. New ride, 2007 Impala SS, and the first mod!
  37. Passenger tweeter buzzing?
  38. Rattle under center console?
  39. Exhaust question
  40. Looking for a GXP Owner in SoCal or the Central Valley
  41. Hey guys. Noob with a noob question about ZL1 Rims
  42. would this rims fit our cars
  43. Anyone replace their PS pump?
  44. New PB for the Impala SS
  45. Build Numbers
  46. Another one gonee
  47. Dyno Retuned!!
  48. best spark plug
  49. Plug wire problem
  50. 2 year battery??
  51. cruise control stop working?
  52. looking to buy ls4 intake manifold
  53. ABS Traction Control Stability Control Fix
  54. Possibly getting an LS4 Monte
  55. Is it possible to get an 08 gxp tuned?
  56. Disable DOD
  57. GXP Transmission?
  58. Polished my wheels
  59. 15 inch drag tire. pics
  60. drag tire
  61. While venturning away from our dark corner of tech
  62. dissapointing track night.
  63. Love my LS4
  64. Racing myself!
  65. Looking for an LS4
  66. Pro-Comp Roller Rockers
  67. lowering springs
  68. Forced induction
  69. Hud :(
  70. LS4 UD Pulleys
  71. Tinting the tail lights
  72. Good to be back!
  73. Under the knife on Monday for the gxp
  74. Moar Pics
  75. Emblems and opinions!
  76. Lifter Tick
  77. Abnormal Whine when in reverse?
  78. gxp versus 6.2 silverado
  79. abs control module
  80. My GXP Transmission
  81. Storage prep
  82. GM's new competition against Dodge and Ford
  83. Oil Pressure
  84. Does my GXP have FE4 suspension?
  85. intake swap
  86. Won't start
  87. has any one tried exhaust like this on there mc ss
  88. W.O.T knock!
  89. hogan performance
  90. removing plastic underbody...
  91. Throttlebody Options
  92. Break Pads
  93. Trade-in Opinions
  94. Budget Mods
  95. I beat a TB SS
  96. recall 09132
  97. Audio questions
  98. Parts for sale
  99. Lost to a Camaro SS 6spd
  100. Motor Mount improvment
  101. Well i did it too. Traded the Imp ss
  102. Bolts backing out!!!
  103. change your cabin filter
  104. where are all the posts???
  105. Oil Filter question
  106. Putting up the Monte for sale
  107. Throttle body adapter for intake swap-$100 obo shipped
  108. Forum Administrators
  109. Trans Tuning
  110. no longer have a gxp thanks for all the help
  111. help with ideas tips and pics of custom engine covers
  112. dod help and headlight harness?
  113. Tap Shift Sucks
  114. GXP Fan Replacement?
  115. hey, another tire thread!
  116. spark plug change
  117. Diablo Trinity for sale
  118. MP3 Nav unit help
  119. Need suggestions for brake pads please.
  120. lug nuts
  121. abs light help
  122. DTC Help
  123. SS wheels flaking?
  124. Tire size?
  125. does anyone have contact info for will at overkill?
  126. Need HID Help
  127. 67 GMC fs
  128. 325 Crossed Flag Emblems
  129. Problem with cylinder 1 spark plug.. keeps going bad!
  130. Nightmare on Hub street, and code question
  131. Chevy announces the "SS"
  132. Dip stick oil change?
  133. quick tire size question-gxp
  134. car craft 2012
  135. Re-sleeve 5.3 to ?
  136. GXP Repoed leftover parts for sale, what other GM cars do brake pads fit
  137. Repoed last year, GXP history and lots of pics, video - Appreciate the years of help
  138. Anyone need a 2006 Grand Prix GXP?
  139. '06+ MCSS Trunk Lift Supports
  140. Sonax Boost Valve
  141. Vector MS Heat Soak Reduction Kt
  142. E85 for 06 SS
  143. Getting rid of some things...
  144. 2008 Grand Prix GXP Suspension Bounce
  145. LS4 intake
  146. ss emblem overlays
  147. Oh Boy!!
  148. New track times with TFS heads
  149. wheels
  150. PRICE DROP! - Diablo Sport Predator U7191
  151. The replacement
  152. Clicking noise in RF
  153. sensor location
  154. Brake Fluid Change
  155. Dex Cool
  156. 2008 grand prix gxp 71k
  157. Diff fluid exchange
  158. Cartuning Trans Pan Spacer and filter adapter
  159. another shift kit question
  160. Thought I'd Share....$10 off mobil one
  161. Odd issue. Possible maf failure?
  162. Ls6 injectors + Ev6 to Ev1 adapters
  163. Why do GXP wheels cost so freaking much?
  164. Trouble Light help
  165. Lifter Problem?
  166. LS6 Fuel Parts for Swap
  167. Brakemotive or other
  168. Racing Transmission texas
  169. 2006 monte carlo ss performance questions!! HELP PLEASE!!
  170. Strut time what did you use?
  171. Shifter stuck in park on 06 MonteSS
  172. Selling the GXP before we move
  173. Another trans bites the dust
  174. A/C Low pressure side
  175. Diablosport Predator for sale! CHEAP!
  176. Online Car show
  177. Intake manifolds?
  178. First time ever to a strip
  179. LS3 swap?
  180. 275/40r18
  181. GP GXP Launch Technique
  182. battery saver
  183. Upgrading Rockers
  184. Took the Monte to the track!!
  185. 2006 Impala SS wash, playing with new camera.
  186. MPD Hood
  187. beefing up the transmission
  188. DR STB's - Yeah...I'm Impressed!
  189. GXP headlight mod pics
  190. Is seeing believing?
  191. Appleton WI
  192. Custom grilles hope you guys like
  193. New Exterior Emblems for LS4 Cars Coming Soon! Feedback Needed!
  194. Just got my GXP
  195. Finally Blew My Trans
  196. Gxp won't run
  197. Finally added my Transmission Cooler!
  198. GXP Wheels?
  199. Going to try this again.....
  200. Transmission swap
  201. Just purchased an 05 GP GXP my
  202. offset
  203. WANTED LS4 Swap w-body,
  204. Dyno numbers are in. Had a big day:) with vid!!
  205. Tuning '08 GXP
  206. Exhaust Catalytic converter or resonator
  207. WTB: Car tuning turbo kit
  208. 93 with ethanol or 91 without ethanol?
  209. Grand Prix issue
  210. Grand Prix GXP question?
  211. Diablo tune and now car won't start.
  212. Oil Pan Gasket per OIL BURNING TSB: HOW TO
  213. Having some issues with the GXP
  214. ls4 question
  215. spring.question.
  216. rotors
  217. Lowering Springs ??
  218. Stall speed
  219. another ls4er car is gone
  220. got flowmaster super 44s
  221. Shes gone
  222. 07 impala exhaust tip size
  223. Hot Rod Power Tour
  224. Who will win???
  225. Whistler Mod on Impala?
  226. What is the best replacement manufacturer for hub assembly?
  227. Complete LS1 Intake Swap For Sale - $500 shipped
  228. Removing/ installing transmission
  229. Couple of runs at the track
  230. Quick Exhaust Question
  231. Wheels and tires Stolen from my car!
  232. Lowering
  233. LS4 swap...
  234. Jasper needs CORES
  235. Gto
  236. wish...
  237. Diablo Intune
  238. Update / Upgrade Suggestions
  239. Calipers chipping
  240. how many quarts low for oil light to come on?
  241. correct forum.
  242. 08 Grand Prix GXP 1/8th mile times.
  243. Is this a transmission problem
  244. stock intake, missing line?
  245. ls1 intake, whats a good deal?
  246. Who knows the most??? Ls4!!!
  247. Rear lateral arms
  248. Brake Build
  249. Props to nmp0098! Incredible tuning!
  250. Bad head gasket??