- boost problem, car shudders...
- coolant issue
- Boost guage...?
- Exhaust deillemas...
- dbilas exhaust manifold fitting HELP?
- Power !!!!
- **New coupe turbo owner needs help please**
- Bore size of the 90º Breather hose on front right.
- Pipercross or K&N
- Price and Part No - ZLET turbo
- Ordered my new turbo (and part no req)
- zlet pre cat
- fault
- fitting a shift light
- Spraying Rocker Cover...
- Eds Ipf Tool
- Buying a Vxr Turbo kit
- Engine bay Pics!
- Valve?? broken!
- Veccy C inlet pipe mission
- gsi conversion
- Any problem using 0w40 in z20let?
- e-manage wiring
- airlocked heater????
- courtaney sport VXR maf
- K&N air filter more noise?
- Lambda Sensor...
- What oil do you use in your Astra Turbo?
- stage 3.5
- wot bhp gain would i get form these mods
- Clutch noise
- higher octane
- Courtenay MAF sensor pipe question.
- Bastuk....
- another oil question
- Phase 1 @245bhp will it cope
- Ticking noise...
- blue flame cat back just fitted today
- how much boost
- Main cat replacement...worth it??
- VXR Turbo - fecked under 4 months
- Full System Or Cat Back??
- Test fitted universal intercooler last night.
- Courtenay sport intercooler
- Turbo cooling??
- Dbilas vs 2.2 airbox???
- pre-cat fitting
- z20let question???
- airbox vs induction kit
- Mk4 Astra Gsi Turbo pls help!!
- Help
- Actuator
- will it fit
- Boost Cut, no power after 4500rp,
- boost pressure
- regal eds ipf
- dump valve question
- astra "blitz" hybrid
- sensor on MK5 boost pipe???
- Cooling Fans
- Header Tank
- Coolant
- baileys dump valve noise
- Breather hose dimensions
- Definitive Parts to fit Universal FMIC?
- Turbo Cooling Mod paper work from VXL
- Air Bag Light
- Turbo change
- adding turbo
- Dead Vxr Turbos.
- Engine Bay ideas
- Cut and blocked pipe!!!!
- rad drain tap!
- Remus centre section for the gsi?
- low on boost?
- SMIC dimension????
- type of clutch ?
- wheels or flywheel
- Emissions Light
- What front mount intercoolers on your MK4?
- De-cat exhaust
- Expansion Tank Temp Sensor
- custom exhaust fitting fri
- Cooler Thermastat
- turbo cooling.. the saga continues....
- will it fit???
- x20 cams in a z20let?
- Help me please..exhaust question.
- Full throttle gives worse performance that 1/4 - 1/2 way down!
- manifold-turbo bolts
- Fitting cool stat
- Boost Gauges
- Need a part number for my Z20 LET
- Cylinder head gas flowing
- k+n panel filter for astra coupe turbo
- Throttle position sensor
- Blue silicone hoses
- What kind of gearbox?
- Pre-Cat fitted!
- FMIC and FULL MILTEK system. NOT worth the hassle!!!
- New member seeking advise
- Coolant problems
- Help - DV Problem
- NEW pro-speed exhaust on my GSI
- vacuum hoses
- decat & straight through z20let
- Please help, my babies poorly
- NEW ON HERE!!! help with engine conversion
- Would this work/fit?
- Dump Valve de-fitting!
- Remap or Courtenay Protech
- is there
- 2 quick questions please
- pre decat
- Dbilas Z20LET Inlet manifold
- Where does this vacuum hose go! HELP!!!!
- c20let conversion
- Smoking problem, HELP
- Got my bits, quick question too
- Wish me luck for tomorrow guys
- part no 4 cooling mod
- My turbo has gone! Advise needed.
- 02 sensor
- Spark plug change time
- VXR Turbo
- quad exhausts
- Pre-cat.......Not the usual post!
- Baileys DV Question (pics)
- Boost Gauges for converitble mk4's
- Cosmetic difference between DV26 and DV26-D?
- z20let engine to z20leh engine
- Engine weight
- Rough Idle
- Worried about cooling.
- Z20let Van Passed Mot But Not Boosting Well???
- Zlet not boosting??
- My engine rebuild
- Do intercoolers get hot?
- cooling fans running constantly
- Boost controller ZLET
- Engine light?
- One way dump valve kit for sale.
- manifold
- Z20LET standard boost pressure?
- Boost guage-mounting ideas
- Courtenay front mount + gsi bumper
- Help!
- valve springs
- Help. part needed
- gsi axle
- My engine rebuild pics
- Alternator belt
- Courtenay radiator mounting brackets
- f40 6speed box
- TC Light on and engine dipping
- Rear Lambda Wire
- a little help.
- remap problem
- Jerky Acceleration
- c20let astra g
- AMD remaps
- spark plug
- Crossover & Top Hat painting
- PEFORMANCE EXHAUST FOR A ASTRA VAN, will coupe exhaust fit??
- astra jdm
- VXR Turbo
- oil consumption????
- Turbo Flutter
- What brand internals to get?
- astra mk4 gsi 4wd kit
- c20let mk4
- exhausts
- Project over 500 astra coupe turbo
- Z20let
- petrol consumption
- Corsa VXR AMM
- Z20LET exhaust manifold gasket...
- opc spark cover
- Question regarding The standard D/v
- Possible powerpipe group buy
- smoking turbo
- Drivetrain Z20LEL vs VXR
- what r best gauges for zlet
- 2nd MOT & fumes
- turbo timer
- turbo timer...
- Turbo timer
- z20let vaccum diagram/abs control unit location?
- Engine managment light prob
- Car wont start.
- limp mode??
- Mayonnaise Substance in Breather
- m32 clucth help please
- hydrolic clutch
- "help" exhaust emisions light
- z20let to vxr turbo cooling mod
- intermitant humming noise when releasing the accelerator
- missfire on boost
- spark plugs ???
- Fuel filter localisation on the Astra Mk5/H
- courtenay sport
- F23 cold gear change problems in 1st & 2nd?
- how about this for an engine transplant?
- What power for my mods?
- Best place for parts - namely XE Cam
- remaping
- Turbo upgrade - Z20let to z20leh
- Low Boost Pressure - FAULT
- no fuel
- apexi fitting?
- Another oil thread!
- will my management light come on
- Strange noise from air filter / turbo
- What else do i need?
- half throttle problem
- Fuel rail
- Smoking exhaust
- possible boost problem?? flat spot???
- oil in the inter cooler
- Z20 LET boost timing question
- Gear selection issue Z20LET w/F23 gearbox
- tc light problem..
- how 2 fit vxr turbo
- need a new turbo unit for the z20 let
- oil
- z20let internal work
- pigeon noise,chatter from turbo
- ECU cover fitting?
- urget help needed...
- vxr turbo in a z20let
- Extra air cooling of the turbo?
- new turbo mod lol
- any good?
- Sump Breather mod
- Rocker breather?!
- Ehaust Systems?
- How to mount an AIRFUEL GAUGE ?
- Has anyone got a fmic + pics?
- Who to go to?
- methanol
- Replacing Zaffy air box
- A blow in exhaust system
- Coolant problem
- flapping noise... sensor?
- Oil in coolant reservoir
- Induction pipe - Which one to use?
- Wastegate chatter
- high pitch whistle very loud and no power
- GSi + Powerflow
- in need of sum tuning help plz