View Full Version: Performance

Performance topics

• K&N intake vs. CGS?
• Which Cat Back System?
• Spectre Performance Intake
• ECOtec Drag Engine Specs
• Performance upgrade (1 2)
• Promised pics of my intake.
• low MPG (1 2)
• Flowtech Raptor Turbo Muffler install 56K warning
• 2006 to 2008 Tunes- Now Available for all 2.2 and 2.4 HHRs
• supercharger?
• E85 fuel performance
• Top Tier Gasoline Site, Retailers N Information- Great read
• What does the resonator Do? (1 2)
• Love these little cars !
• ECM boost for HHR
• 2.4 Performance
• Injectors
• 155 mph HHR SS
• Fuel Additives (1 2)
• Are performance chips any good ?
• New intake for the Black Pearl
• ECM installed (1 2)
• Reset Computer
• To Dex or not to Dex
• Best Overall Performance Upgrade for a 2.4?
• ECOtec L61 Build Book- What HP do you want? Stock to 1400 HP
• NEW HEADER- I AM TESTING A NEW DESIGN
• Mitzkity goes Mitz-Lioness!!
• Rear Disc????
• new 2007 HHR make changes under 900miles on it????
• Anyone know?
• How low are you letting the oil life indicator get?
• Can Someone Explain if These Work and How
• Dyno's ~ good/bad ~ what to look for/ask?
• Ecotec Engine Handbook (1 2)
• 1000HP, race on Sunday, sell on Monday.
• Got my car Tuned
• dyno with software tuning in Killeen texas for HHR's
• Dyno Tabs
• Is this Performance Upgrade Worth It?
• IMCO T-924 Discussion (1 2)
• N20 on a 2.4
• Performance chips
• Dual T-924's
• spark plugs
• Scangauge 2