View Full Version : LS4 Performance


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