- What could this be?
- Mighty Mouse Catch Can installed
- ls2 cam
- Shaker Pics as Requested
- 228/230 .588/.592 112+4
- Plugs?
- throttle body adapter and nitrous plate
- Windshield glare
- Anyone change this idler before?
- New car?
- this anyone on here?
- just curious about the tranny fluid
- Fuel pump
- Anyone run drag radials or full slicks on their ls4?
- steering issue
- strange noise
- Battery Current Sensor direction
- anyone ever change that upper vacuum line ontop of the intake?
- Pimpala is alive and sounds nasty as f@#$
- What to do at 100,000 miles?
- Misfire on Cylinder 4
- Monsoon touchscreen with navigation help
- front hubs, which brand n supplier?
- Poly motor mounts
- raced a cadillac cts-v think it was like a 2011
- Gxp 0-150ish
- Just a little pull in the gxp
- Steering Wheel Interchange
- new coils
- Making the swap to e85 need help injector flow rate
- Oil Consumption
- LS4 Trans puking ATF
- Best steering ratio available
- Gauge in the ac vent
- 07/08 gxp
- LS4- 6T70/6T75 Happening...for real!
- let the nickle and dimes dispense!
- abs module
- Small clunk on acceleration
- thinking its time for shocks and springs 05 gxp
- how many rack and pinions have exploded here
- Went to the track tonight
- Raced a audi A7
- anyone here have a PATC converter?
- Massive leak output shaft area 06 impala ss
- Schaeffer's oil
- GTP vs GXP axles
- Changing tranny fluid
- Nothin to do with ls4 just wanted to tip my hat to "PAC" company
- black beauty
- Coolant Fillter/Radiator Cap. SICK OF IT AND THE PLASTIC!
- Battery Current Sensor
- so anyone get pranked for mischief night?
- Hids, bad ballast or retarded install?
- Strut Tower Brace Question
- Trans discussion
- transmission cooler
- Minor oil leak after switch to synthetic
- Fuel system cleaners?
- LSXTV.com Feature
- Cam swap
- GXP Cat/Resonator Bolts
- key fob issues
- ls4 injectors on ls6 rail
- Your ls4 travels! Calling all ls4s :)
- hated my faded calipers
- Power steering pulley question
- 4T80e Update (broken)
- Fog lights just stopped working
- Good daily under 3k?
- Torque Converter Allowed to slip
- Traction control question
- Tranny issue again
- Anybody had this problem???
- Recently with my GXP...
- New gxp owner for cartunning turbo kit
- Interchangable Parts?
- ls-4
- Raced a 2012 chrysler 300c srt
- Low oil Add oil light
- Slp 1.8 roller rockers
- Rear speaker replacement
- Trans cooler install question
- Did a pull 30 - 115
- Gxp calipers for sale?
- Stainless brake lines
- Michelin pilot super sport vs nitto enzo
- lloydmats have arrived
- ls1 intake swap feeler.
- help big brakes
- The LS4 Debate thread
- Fuel system
- 320 amp mechman alternator for sale
- Tips to kill exhaust drone
- Question about TEP
- List of Modifications and Tutorials
- Will AGX struts work?
- Help with electrical problem
- X11 poly mount review
- 2007 Impala SS BRAKES
- recall 14291
- Relearn
- hp tuners
- My Super
- Monte Carlo Bigger Brakes/Calipers ?
- help: crank pulley wobble
- What the heck is wrong with my Impala?
- Grand Prix rocker cover clip broken?
- Low oil pressure
- What's this in my plenum?
- Impala hood
- Need a lil more input on e85
- 13 Day LS Fest Build Starts Now
- front swaybar setup
- New owner of '07 grand prix GXP
- Help hooking up catch can
- What i have found tear down and build thread
- Need help wit exhaust
- Needed ls4 engine
- The first 383 stroker LS4 is alive
- Introduction
- Well pimpala ain't pimpin
- Holley LS Fest
- What you can expect from Turbo LS4
- Need some feedback on hptuners, and wheels and tires.
- needed: parts list for lifter swap
- Ls4's over 300whp
- Furches Performance Cam Package getting Installed
- BMR trailing arms
- Spark plug wires
- ac issue
- speedmaster 96mm intake manifold swap thread
- Cartuning Turbo Kit Monte Carlo SS vs. Hellcat
- New LS4 Intake Mani Option
- LS4 Turbo Kit
- Strut assembly bottom bolt size
- Has anyone changed the radiator on one of these cars
- Starter Solution for Transmission Swaps *4T80e*F40*Non-LS 4T65e*
- Looking at a Impala SS tomorrow - any LS4 specific stuff to check?
- P551 oil pressure out of range
- crank pulley diameter
- 07+ E67 BCM Brake Signal Verification
- Help with tuning for the track
- 3" Catless Downpipe
- disabling codes
- issues pulling bcm codes?
- Engine swap
- Engine swap
- Nitrous switch panel
- Transmisson cooler install
- Track bars on 2006 GXP
- Automatic climate control
- LS4 or G8 GT? Which Would You Choose?
- Leak underneath leftside of bumper
- Voltage gauge...
- Going on the dyno tomorrow
- Transmission died
- Top engine cleaner Question
- What all is needed to do the e85 swap
- fouled plug
- Getting tuned on Wednesday
- Battery Tray
- Passing by a buddy on the way to lunch
- 2008 Buick LaCrosse super
- Kenwood double din install
- Comp G Struts/GXP Springs 08 GXP
- C5 brakes for sale in classifieds
- Evaporative purge
- A pretty good word at 70k miles
- LS3/7 Gold blade TB
- 2006 GXP LS4 DOD delete help.
- Smaller Rims on Lacrosse Super
- C5 brakes are they better than gxp?
- Need advice!
- 2006 GP GXP jumping odometer
- Hey na, Hey na, My Monte's Back!
- 07 impala ss turbo ls9 camshaft start up
- Need help!!!!!!
- Will any other LSx water pump fit the LS4?
- Looking into aftermarket wheels, need help
- Almost ready to get tuned
- New engine time??
- LS4-to-6T75 Adapter Plate
- Gonna be ready for start up tomorrow
- Stock exhaust crossover WTB
- Rocker arm tourqe spec
- AC Compressor replace 05GXP -Best Practices
- Another trans dead...
- LS4 Production 2004-2009
- What I found today during a partial tear down
- Putting everything together this weekend any tips
- transmission or convertor issue?
- GXP brake squeak
- Non Dod cam swap parts list Sticky
- Weather strip near mirror...
- 2005 Grand Prix GXP Buid **Street & Strip**
- Track Tire - 06montecarloss - 225/40/18
- 06 monte ss, installed shiftkit, no change?
- will this balancer work?????
- 11.01 Still the Record??
- anyone boosted with ls9 cam
- what should I do
- ls9 Cam Plus dod delete
- Memorial Day
- Glasspack in place of resonator
- LS1\2\6 Intake manifold swap 2.2 23 JAN
- Got some sweet revenge
- GXP Torque Reduction - Diablo Tuning
- new exhaust on grand prix
- Door Locks/Key Fob
- Thermostat replacement
- Update on the GXP
- DoD delete kit and LS3 valley cover
- intake swap with dod tuned out
- Full Poly motor mount set... Prototype
- Literally the last 2 RPM`s
- Few good track passes tonight
- coilovers or lowering springs?
- Seal on rebuilt heads
- 07 Grand Prix GXP
- Finally put in my lowering springs and new wheels and tires
- 2009 Impala SS Trans Issue?
- Potential 08' GXP Owner Questions
- Transmission Finally Died
- door locks not working
- Diablosport... Spark Tables
- ls4 / 5.3 able to support 720@ crank ???????
- Thinking about buying a GXP
- power outlet always hot?
- need help identifying wheel
- Optimum Catback Size
- DiabloSport Tune - 07 monte carlo - Timing ?
- 06 GXP aftermarket radio question
- 2006 GP GXP recently new owner
- Motor swap
- Do I need pistons and Rings??
- LS4 crank in LM7 block??
- Need new Mufflers
- teardown has begun!
- Detailing - Washing - Water SPOTS! - Solution
- Two problems I need help with???
- anyone looking for a diablosport intune?
- New to the forum
- Resonator delete after muffler delete?
- Trans lines on 2006 GXP
- Confused. Which transgo shift kit is right??
- I think my tranny is getting bad..
- 06 Monte Carlo SS stereo question
- Tie rod Steering Knuckle help
- My First LS4...