- GM Performance Parts Exhaust
- IMCO T924 recomendation
- What upgrades would you recomend?
- Fitch Fuel Catalyst
- New Intake
- My latest performance modification
- GMPP Turbo Kit for 2.4L ?
- Diablo Sport tuning is offical!!
- chip sets/performance/fuel saving
- Power upgrades for the HHR
- tight fit
- outlaw air filter
- Dyno's ~ good/bad ~ what to look for/ask?
- 2.4 L Ecu-pcm
- Denso spark plug gap for HHR 2.4
- CGS Noise Level
- Ok, we need some sound clips.
- SoCal's "Outlaw" Air Filter...
- What type muffler should I use..
- Is the IMCO really the best??
- HPTuned 2.4
- CGS noise level
- For those who put on a header/manifold...
- Diablo Sport tuning
- 1st Post, Raised HHR
- vector motorsports dyno tune
- AEM short ram intake
- Stock Air Filter
- K&N Air Charger?
- Mileage Test
- Lighter pullies installed -md- HHR this is for you
- cgs ehaust
- Turbo on 2.4
- Noisy CGS
- Underdrive Pulley Kit
- IMCO noise level and other mods
- A/F Mixture on 2.4
- Spark Plug Swap
- ?Group Buy on Tune Tyme?
- They are finally on!
- AEM intake link 188.00
- Cat-backs for the 2.4
- "Change oil soon" after CGS install
- Care and Feeding of CGS Intake
- does anyone have a turbo
- Quarter Mile Time
- Cold Air Intake
- Supercharger
- 2.4 stage2 triflow cams
- about how long to install a crank pulley
- Headers & ECM programming
- 2.4L Turbo Video
- our dreams might be answered
- HHR Breathes now
- Oil / fuel Additives
- sneek peek
- NEW MOD and a great price check it out
- how did GM get more hp this year?
- do we have LSD
- IMCO install pics?
- a new mod front and rear sway bar
- do our cars have a manual or automatic transaxel?
- Website To Get Hhr Stuff From
- Bored out TB for 2.2L probably work on ours
- replacement filter for CGS intake????
- CGS intake bolt size?
- no plug wires/ alt pulley?
- think we could use this intake?
- Update: Pics of K&N installed and GMPP Exhaust
- Mass Air Flow Sensor
- K&N's new intake system, installed.
- Turbo Kits for the 2.4?
- What are these tabs?
- GMPP manifold ?
- Has anyone installed a Nitrous System on there HHR yet?
- Stock Air box
- Edge
- Oil change & Oil cap
- Powertrain Options...
- CGS Intake Question
- Real cold air
- Need 2.4L HHR in VA Area...
- Back to stock, off comes the Imco muffler...
- New K&N Intake Available Now...
- Synthetic Automatic Transmission Fluid - Anyone?
- aftermarket headers
- Trying to get my IMCO installed.
- Dual exhaust
- CGS Exhaust
- Wife is unconvinced on CGS intake.
- new cold air intake........ price tba
- stock weight on 2.4L 5spd Flywheel
- Appearence or Performance? What would you do?
- got new ride
- Rear Disc Brake Kit?
- air intake temperature modules
- Yes, yet another Air intake question...
- a different air filter/intake?
- N2O on 2.4
- E-85 Mod???
- Question about ECU reflash.
- Oh MY FREAKIN Goodness!!!!
- Gmpp exhaust
- Rear mounted turbo?
- Gibson Update???
- Lighter flywheel
- 2.4 westers tune group buy
- SoCalHHR imco exaust tip?
- Just got my 1LT on the Dyno this morning
- not telling details
- got my cgs intake last nite
- Lower Temp Thermostat
- Gibson exhaust
- Airaid Intake Wave file
- CGS review
- all the recent talks fo CAI's made me want to make one
- Rev Limiter??
- Retreiving lost torque
- Intake Comparison Results
- Airaid Intake Special
- Reply From Superchips
- CGS vs. Airaid Test: Part 1
- AirAid air-intake
- Vortex Generator for Equinox/Express/HHR +HP&MPG
- turbo on auto transmission
- Another Option
- Ecm/tcm ?
- Will The 2.0 Blower Fit On A 2.4 Hhr?
- Flowsound
- Since I've joined No one talked about this,, its time..
- Driving In The Intermediate Gear...... "I" on shifter
- Tach/Speedo jump???
- gold line
- 2.4 ECM Flash Ready to go
- New K&N Filter For HHR
- HHR With Dual Exhaust Spotted!
- Group buy interest on exhaust?
- New CAI on my HHR - Question Though
- Gibson Exhaust from socallhhr
- K&N Replacement or CAI
- Installed My G-Tech...
- MAF Problems
- What performance parts do you want?
- Does anyone know?
- RSM Racing CAI & Supoercharger
- Performance Module - does it work???
- 2.4L Exhaust Upgrade (sound clips)
- Engine cover
- who is looking for a intake for there HHR
- exhaust
- Spark Plugs
- Manual or Auto-tragic??
- anoter exhaust ?
- 2 charge or 2 purge that is the question
- Exhausted HHR
- HHR Performance Module +25HP Kit
- Air Filter?
- mods
- 2.4L 1/4 times and 0-60
- Who will be the First to do a 2.4 Mod?