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View Full Version : 2.4L Performance Tech

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  1. Charcoal Canister
  2. RS4 performance chip
  3. Realistic Horsepower numbers
  4. OBX header and downpipe
  5. eng. light still coming on 2006 2.4
  6. Airaid intake installed on 2.4l
  7. Cobalt downpipe compatible with HHR?
  8. Can we get a sticky?
  9. K&N air filter and synthetic oil question
  10. Muffler Ideas!!
  11. Not Sure 2.4 or SS
  12. Time for a new clutch
  13. EcoTec Tuning
  14. 2.4 25K maintenance
  15. Cold Air Intake System Weapon R Dragon
  16. Need new muffler
  17. Tire smoking little monster.....
  18. Manual Trans gear oil question
  19. So let's make a turbo thread that won't get locked.
  20. Oiled air filters
  21. Hahn RaceCraft 2.4 HHR Turbo Install - The Review
  22. Trifecta Performance Discussion
  23. Ecotec goes racing!
  24. Best Intake
  25. Oil change. Quaker State 10W-30 Multigrade, good option?
  26. Cobalt SS Supercharger on an HHR 2.4?
  27. rim question
  28. Product Review: Trifecta Tune
  29. Getting More Performance Out of My 2.4L!
  30. Oil Change???
  31. Your input please
  32. Weapon intake
  33. Power loss
  34. price of GMPP CAI
  35. another intake/exhaust question
  36. Header?
  37. My 2006 2.4 TURBO HHR!
  38. exhaust opinions
  39. CGS Intake Mounting Point?
  40. Switch to Synthetic now?
  41. RTM Motorsports "plug and play" chip
  42. Airaid question
  43. K&N Filters works well or not?
  44. Airaid intake?
  45. Horsepower gain
  46. Jet performance module stage 1
  47. GM Performance exhaust
  48. Gm performance air intake
  49. trifecta tune questions
  50. 2nd set of Mods and Impressions
  51. GMPP HHR Intake - Cold Air
  52. PCMforless
  53. Will this oil cap fit?
  54. ss engine swap
  55. Any differences ?
  56. Cold air intake?
  57. 2.4 or 2.2
  58. looking for a quiet exhaust
  59. First Mods of the HHR and Impressions
  60. Coolant Temp Question?
  61. 93 Oct???
  62. First oil change
  63. Disconnect Battery, what will happen?
  64. engine oil filler tube rusting?
  65. Free shipping on K&N AirCharger for your 2.4L @ PFYC.com
  66. Performance Brakes?
  67. Thinking about headers
  68. K&N air intake problem. anyone else have problem?
  69. IMCO vs Magnaflow noise.....
  70. Intake questions...
  71. complete package
  72. Performance Package
  73. Chips that can be bought for 2.4 motor
  74. GMPP Intake
  75. Check engine light - My only choice !
  76. Oil change and magnetic drain plug
  77. Cooling fan start UP temp?
  78. Jet Performance Modules
  79. First trip down the drag strip.
  80. Question about the 2.4L
  81. K&N air box?
  82. 2.4 Throttle Body question
  83. 2.4 Tech write up
  84. Mods going on soon, need advice!
  85. K&n cipk
  86. New filters - New Check engine Light
  87. Tested the Deer Slayer for a bit.
  88. CGS Axle-Back installed today
  89. Ok , Supercharged 2.4 Part 2 ?
  90. Info please
  91. Woot!
  92. CGS Air Intake Installed
  93. In search of higher mpg
  94. Anyone try header yet?
  95. Cylinder Head Pressure Limits
  96. Cobalt exhaust on hhr?
  97. Cold Air Questions
  98. Please Tell Me
  99. Looking through my GMPP catalog..
  100. engine swap
  101. Pics of my new/used CGS intake!
  102. Help need Imco part #
  103. Brake vacuum hose
  104. Hahn Turbo Kit for 2.4L HHR
  105. tune reset??
  106. new & old dyno results
  107. CGS intake chosen by Godfather Customs
  108. Code problem
  109. ground wire size
  110. Cold Air Intake that works!!
  111. Fuel Injectors
  112. gmpp exhaust?
  113. Gmpp Header
  114. OBX Exhaust Manifold Header 05-08 Chevy HHR 2.4L Ecotec
  115. Electric welding on an HHR
  116. 2.4l acceleration question....
  117. Nitro Box performance chip
  118. Intake Kit Question
  119. Header
  120. 91 octane = 172hp, 87 octane = ?
  121. Magnaflow on order........
  122. Check Engine Problem Solved !
  123. HHR in for service
  124. Aftermarket Exhaust
  125. MAF question
  126. No GMPP WTF??? Feedback Please!!!
  127. Can you say "supercharged"?!
  128. Throttle Response?
  129. Deceleration Fuel Cut off
  130. airaid fit problem
  131. Mine was built in the 9th month
  132. Gallons remaining when low fuel indicator on
  133. Lowering my HR
  134. How many gallons does it hold?
  135. GMPP Intake, CARB and warranty questions
  136. GMPP Intake + Jet Performance module
  137. My GMPP intake; installed
  138. gmpp cold air intake
  139. Anyone tried a performance mod chip?
  140. Going to St. Louis
  141. cgs installed
  142. Perfromance Parts??!?!?!
  143. Turbos for hhr?
  144. weapon-R air intake
  145. Matting a 6-speed auto to the HHR someday...
  146. Can I run 1/2 ethanol 1/2 normal gas in my 06?
  147. WHAT DOES variable valve timing do
  148. LOUD a** muffler
  149. Cgs
  150. Took Mitz in for some fixes...all done.
  151. Where to get outlaw filter
  152. Turbo
  153. Missing hole on valve cover
  154. filter for CGS
  155. JFC, Another anomoly with my 08?
  156. Ok, This might sound strange..
  157. Its here!
  158. Bump-stop trim:how much?
  159. OEM Cold Air help!
  160. Pics of my ZEX set up.
  161. 35 mpg!!
  162. Adding the SS Turbo?
  163. Resetting the oil minder
  164. dynos done today
  165. Cobalt Performance Airbox
  166. Ram air?
  167. Recently Tuned my 06 HHR
  168. K&N Air Filter
  169. How do i clean my cgs filter?
  170. REALLY stupid question
  171. Ok, Its me again with another quasi-poll
  172. octane
  173. Calling all 2.4 owners that have reflashed
  174. Goldline rear levelers arrived today
  175. For those that have " praise the lowered"
  176. intake question
  177. HP and Torque chart
  178. Acetone mileage improver?
  179. 2.4 2008 Tune
  180. Best price on Magnaflow exhaust?
  181. reporting in
  182. Towing with Manual Transmission 2LT
  183. Ticking & Clicking Making Me Crazy!
  184. Flat spot at around 4000 rpm
  185. Man, this mileage sux...
  186. NEMO has been in the shop today!
  187. Jet performance
  188. Replace Turtle Muffler with straight pipe?
  189. K&n??
  190. How do i Add 30 HP
  191. MPG Loss!! LOL!!
  192. Worlds first mid engine HHR
  193. Cruise Control RPM
  194. Is there much difference between the 2.2 & 2.4
  195. Headers
  196. A question about LSD
  197. K&N in stock turtle shell
  198. new hhr help?
  199. Nitro Box
  200. Octane rating issues
  201. Mileage basline/performance
  202. old school vw sound
  203. K&N Cold Air Intake & Traction Control Light
  204. MagnaFlow Cat Back
  205. New 2.4 dyno numbers
  206. Why did GM lower the horsepower ratings?
  207. Service Interval
  208. fuel mileage module? worth a crap?
  209. Jet Performance Module.
  210. K+N installed and Magnaflow cat back
  211. Tuner options... ?
  212. Intake + exhaust ordered
  213. 2007 Hhr Lt2 Clicks At Start-up. Oil Level Fine
  214. Cgs intake or K & N intake
  215. Ok I'm at it again....
  216. Wats she worth.
  217. Cheap Power?
  218. How Loud Is The CGS Intake?
  219. Anyone used a Tornado????
  220. headlight and taillight blackouts>??
  221. radio
  222. Hid Conversion
  223. Mitz-Lioness!
  224. CGS intake install question
  225. Flowmaster catback coming?
  226. Any one got a Magnaflow sound clip ?
  227. Jet Performance Chip PCM
  228. Quick Oil Change Valve
  229. What octane to use on the HHR
  230. K&N Cold air intake installed ????
  231. Manual Trans
  232. Total electical failure
  233. What will they think of next...
  234. Back to stock intake. Bye bye CGs.......
  235. Power increase
  236. TOMMOTORSPORT Springs
  237. K&N Cold air intake
  238. 2.4L G5 Gt supercharged video
  239. FlowMaster
  240. Need mechanics' opinions
  241. Where to get replacement CGS or Outlaw filter?
  242. Brake Change
  243. Hahn Racecraft Turbo Kit
  244. CGS/Outlaw Filter - rattling noise
  245. New Dyno #'s 2.4 LE5
  246. Mobil 1 Oil Cap
  247. car would not start
  248. 2.4 valve cover and CGS powdercoated chrome
  249. Has anyone installed Headers on a HHR
  250. HHR Exhaust