- Remapped gsi
- FMIC, VXR Turbo..
- Panel Filter
- standalone vs piggyback
- ZLET Flexy joint
- Water to Air intercooler
- VXR Intercooler to Plenum Hoses (Samco's)?
- Fitting a HKS d/v
- Sparkplugs photos
- biggest intercooler
- exhaust noises??
- electric water pump on a ZLET
- dump valve
- lack of power at top end
- Remaps affecting TC
- cambelt kit?
- Astra H OPC intercooler
- My 2001 coupe turbo exhaust
- Samco hoses on Z20LET
- whose got roose motorsport hoses fitted
- Astra Turbo coupe clutch problem
- Photo request: turbo oil feed and return on zlet
- HELP! lost DV and boost gauge pressure
- Revs sit at 1500rpm at idle?
- Z20LET CS3 holding back
- Very intermitent low idle???
- part numbers please
- Who makes this boost pipe?
- Help please!!!
- ECU replacement
- GSI just been treated to VTUNE remap!
- Gearbox Oil
- Loud repeating noise from engine
- My plans
- Help!
- Metal headgasket
- Boost Hose Confusion :s
- To fit or not fit Regals cam?
- engine electronic system failure
- boost levels
- Performance with loud lifter?
- milltek blows from cold start
- Afm
- any idea's ppl?
- Z20LET engine
- Have an Astra Turbo 03 Aussie Model (Z20LET Engine) Need some Experts Advice
- diesel afm in z20let
- Emptying Petrol
- Quick help - Aircon processor on coupe turbo
- Dump Valve
- Help: Water header tank hose, and 2nd Lambda Sensor?
- VXR afm
- oops
- Is this safe - Intercooler Piping
- people wanting to run no cats
- Vauxhall replacing the LET turbo for the VXR item?
- Precat-main cat gasket?
- Extending the AFM Wires
- adjusting actuator on vxr turbo unit. ?
- Regals Switchable Map, actuator issues?
- Precat sealing?
- Cosworth -34 OR -31 actuator?
- Z20LET, with Z20LEH Stuff.
- fault codes P0100 and P0219
- Help
- Is the new turbo working?
- Help Knotchy Gears!
- Boost gauge readings
- vxr afm
- people with HKS d.valves! HELP!
- dump valve video
- VXr goes in idle mode
- vxr AFM
- bailey's dv-26. . . . . anyone
- any ideas ticking noise
- 2.5 " to 3" exhaust
- My rolling road print out
- diagram wanted
- Advise on traction control/ABS light
- c20let transplant in astra coupe
- What Transmission Fluid To Be Used?
- Oil pressure switch
- vxr turbo onto zlet is it straight swap
- VXR Turbos....
- New intercooler for mk 4
- 888 coupe exhaust
- boost and oil temp gauge
- RR today
- Astra GSI engine
- boost problems
- f23 info req
- Just serviced, but what have they forgotten?
- 6 Speed Gearbox for Z20LET / Astra G
- Water pump gone
- Z20LET - problem with standard setup??
- 20seh turbo
- Turbotimer
- EML and fault code - possible software problem?
- Are zlet ecu's 'Write once' items?
- a few Z20LET remap questions
- Putting Myths to rest with z20let products?
- Vectra C intake pipe..?
- New turbos
- Switchable boost (Regal)
- de-cat has voided warrenty
- new vxr turbo
- Rough running when cold.
- Universal Intercooler outlet size!!
- 450bhp astra coupe turbo
- z20let oil filter
- trumpet dump valve
- #####Big problem on my Z20LET#####
- Bastuck Cat back
- turbo timer wires = any ideas?
- This just fell off my car??
- coupe turbo exhuast systems
- regal
- Idle problem. Again.
- what to do to get more power
- Zlet clutch prices
- IAT sensor question
- coupe turbo exhasut center section
- low boost issue
- popping noise on over boost
- Traction Control Light+emmisions Light On Help
- Advise on next step
- Wheres the C20let engine number?
- courtenay uprated actuator or -31/34
- dump valves
- 2.2 airbox mod
- C20LET mk4 astra coupe
- Where is the oneway valve thread?
- clutch price and place
- Scorpion Systems Evo - Evo-R
- Arrrgh Frustrated..now excited!! :D
- help with fault code.....
- 380 bhp Astra on ebay?
- Tech2 fault codes.
- Do Courtenay VXR IC's fit MK4's
- Dump Valve Z20let
- I now have a spare ECU... Questions
- AFM Wire
- holding back!!! help!!
- Pipe off from rear boost solenoid
- mk4 astra exhausts
- Fitted SSQV - now has a problem?
- Maximum BHP
- Sound from the air filter
- RR results
- car misfiring?
- z20let grearbox mounts
- Rolling road question
- exhaustsuk precat replacement pipe
- What Problems does a bad AFM cause?
- Radiator leak
- Pre cat?
- Missfire
- Is this as bad as i think it is?
- C20LET turbo recon??
- Engine dips slightly on idle?
- Dump valve question (another)
- 1 way valve on rocker cover?
- Has anybody got a "universal intercooler" on their GSI?
- Squeaky/Scratchy noise from z20let
- Exhaust system on a coupe T
- Blown turbo, should i expect the worse?
- hypothetical question about intercoolers.
- coupe turbo in pain lots of it so am i can anyone help
- fmic and pipework price?? n coupe price
- coupe turbo center section
- Z20LET How can i tell if my waterpump is on its way out
- astra coupe c20let rough running
- water wetter dosage
- Gsi Turbo Spec Enq
- Luck or coinscidence?
- Exhuast before remap
- Couple of noises I'm worried about!
- Zafira GSI Turbo dies on idle
- Strange noise when changing gear
- dumpvalves
- alloy sump
- gsi losing oil :(
- oil in pipe to top hat?!
- air flow sensor
- amal valve???? clicking
- Can somebody please clarify
- adjusting actuator
- Vxr turbo
- scorpion exhaust
- Pace Intercooler
- different D/V noises
- Need some advice
- boost drop
- boiling engine bay
- part number needed
- my bloody D/V again
- bigger air intake pipe
- CDTi Airbox pipework
- new z20 let engine anyone help????
- snapped manifold stud
- Turbo Fault!!!
- Vxr turbo warranty
- sri turbo
- so much for rebuild
- Thorney Remaps
- Fitted my new afm yest and wow!
- Clicking noise when foot is on the throttle
- vxr exhaust centre pipe on gsi
- is this right. vxr 240ps?? trade club discounts
- AirBox to fit mk4 c20let????
- Boost Control valves
- Tech2 code P1106 help?
- Tech2 code P1106 help?
- coupe turbo
- turbo exhaust
- Gear Selection Problems
- Loads of Smoke
- Castrol 10w50 Fully Synthetic Oil in a Zlet
- New/used turbo costs?
- Effects of a leaking boost hose?
- Change of gauges, from psi to bar
- wheres this oil coming from - vxr turbo from?
- Power Figures
- Regal's Cam (Inlet or exhaust)?
- stupid question but desperate for an answer
- Head Gasket Gone
- Fitting intercooler attempt #3... failed again :(
- charge cooler and intercooler?!
- Oil & pressure adapter
- Am I the unluckiest person alive?! - MORE ZLET Problems
- sports cats
- VXR AFM part number?
- Who has the VXR AFM fitted?
- vxr turbo
- HKS Type 1 turbo timer?
- Boost/Vacuum Hose Inner Diameter
- f23 gearbox
- Part Number request please
- Universal Intercoolers
- Dump Valve is it worth it on a Z20LET turbo?
- 1.6 Turbo
- Turbo experiementing, tech help
- Air fllow meter ????
- pannel filter
- Part number request
- What is the internal diameter of the throttle body?
- Z20LET turbo replacement > LEH Turbo
- Gsi stalling /cutting out !
- vxr turbo
- vxr turbo boost pipe ?