- Emissions Light Question
- Part No please
- Exhaust UK precat
- Help Needed - Smoke / Steam and Engine Management Light
- hot or cold air for turbos?
- arrrr damn AFM
- Z20let Turbo on the way out. (help)?
- wallace performance
- Next Mod??? Tell me??
- 100mm AFM
- VXR Turbo arrived, fitting today
- Turbo conversion
- Pistons and rods
- rocker cover, material??
- Is it just me or is it the eds map?
- another smokey coupe :(
- Warning lights
- New engine all built
- Vauxhall Air Con Compressor
- P0325 error?
- c2olet will not start
- universal fmic
- Ves Exhaust bypass
- 1.9 cdti air box
- new prob wiv car any ideas
- having troubles
- what is the effects of sperr differencial
- ITG panel filter for astra h 1.9cdti
- HELP - Manifold stud broken & stuck in the head!!!
- panel filter size
- MOT Failure on Emmisions
- astra coupe turbo boost control valve
- VXR dumpvalve
- fitting guages
- Courtenay Uprated Actuator on standard map
- astra gsi turbo has any one ever heard of the gears going stiff?
- astra gsi turbo problem
- How Dangerous is it to.....
- turbo smart dump valve
- Increased overboost from 25 to 28psi and...
- new water pipe on turbo mod
- hesitation
- Flat Spot between 4K - 5K
- few questions
- Urgent : help needed
- Car/Spanner Light after TMS stage 2 (Bluefin)
- Oil
- Electric Supercharger
- TMS - VXR Turbo Changed
- 2.5" or 3" exhaust
- z20let intermittent starting issue
- DV vac hose
- Help finding silicone hoses for VXR AFM?
- Cambelt & Water Pump...
- coupe turbo fmic 16lt
- Air flow meter
- code p0170
- Narrowing down a fault
- Launch control Omex
- Z20LET Milltek or Jetex
- running rich
- white smoke...
- Exhaust Emission Light is Lit, any ideas?
- Fitting New Turbo to Astra Coupe
- lower boost with group buy intercooler
- how to read rault codes ?
- fitting t/c to coupe turbo - eps?
- removing cat converter
- Nedd Help With My Gsi Please!!!!
- group buy intercooler
- 2nd Attempt Failed Universal Intercooler
- Lets clear this up -34 Actuator
- oil pressure
- Black intercooler- like gold dust!!
- Precat, and cat back, worth doing?
- performance mods - which order?
- help me?
- few questions for the c20let conversion
- Driftbox
- any 1 else have prob wiv water leak
- exhaust
- Dump valve
- Rough iddle sometimes..Help.
- Cracked Manifold
- Kwp2000
- Std Z20let turbo what kind of kkk
- my first mod!
- Spark plug for stage 3
- what is the exact weight f astra g coupe turbo
- Boost Issue
- hesitation under acceleration
- Turbo
- Passenger Drive shaft query
- hose sizes please
- Coupe Turbo Exhaust
- Swapping manifold on z20let
- Pace Intercooler & Air Con Light Issue
- another clutch thread
- CS2 guys (or equivilant)
- Engine Running problems – Help please.
- Oil consumption
- Vxr intercooler
- Intercooler
- What the hell is that noise!!!
- coupe power figures
- Part Number Please
- C20LET conversion
- Intermittent idle problem
- Dump Valve
- dose it work
- cs4 figures high tourque
- Switchable boost on Regal maps
- Bar or PSI
- Water injection on coupe.
- Courtenay Hose Kit
- Fairly loud ticking noise coming from the near side headlight
- what size exhaust
- Coupe gearbox problem
- astra VXR
- Gearbox breather pipe??
- Help me please!!
- ABS and T/C lights
- Oil Leak After Turbo Change
- t8centre console part number
- What Induction Kit???
- Wot psi on Phase 1
- Knocking Noise From Under Bonnet
- avc-r
- Real lumpy idle
- o2 sensor
- c20 let project
- whinning noise any 1 help
- Milltek exhaust - Is this right, can it be fixed?
- s/s exhaust
- gearbox help!!
- valve at rear of air box ?
- misfire
- t/c switch part numbers
- air flow meter
- Swaping Manifold On Turbo (z20let)
- blitz or hks
- how do tappets work on the z20let
- GSi cat & pre-cat separate?
- spark plugs
- What mods next??
- Z20LET Blue smoke
- tech 2 error code PO 420 any ideas???
- VXR Air Flow Meter
- courtenay sport intercooler hose
- forged pistons and rods
- Astra GSI issue
- Can you swap a cracked manifold for a new one on a turbo?
- car running lean????????????
- Salvaged ECU (270 BHP) BUY? or STAY AWAY?
- Fuel Consumption
- dodgy idle and cutting out
- loss of power
- speed wire
- z20let engine resist
- stupid question ie symptoms 4 hole
- pipe size from crossover to Turbo
- Removing cross over pipe
- map switch
- turbo ??
- turbo help
- Milltek Backbox for a Zafira
- problems with z20 let
- Newbie to Turbos
- miltek or powerflow
- Engine going back in
- Possible Gearbox Problem
- what oil
- Dump valve vacume size?
- VXR Turbo On Zlet.
- home map flashing
- Will a vxr dblias exhaust manifold fit my coupe turbo?
- exhaust help
- z20let- m14 thread on block?
- breather hose
- power FC
- need new turbo AGAIN !!!!!!!!!
- powerflow exhaust
- Coupe Water Bottle Part Number Pls.
- Z20LET GSi Engine Removal Problems ??
- Pics of ZLET surgery (56k no no)
- what Fuel ??
- regal z20let manifold
- HKS SSQV fitted... idle problem...
- group buy intercooler question?
- How do i polish my crossover pipe?...
- What,s causin blue smoke???
- Help plz!!! z20let. i cant seem to get past 2k rpm
- What software Version?
- 2.3l instead of 2.0l on z20let
- Astra H Turbo Exhausts
- Fitting Experience Anyone???
- dump values for astra mk 4 gsi
- who got the turbo then
- Astra turbo probs - Can anyone help?
- Z20lel Afm
- p0115 engine cooling curcuit malfunction?
- Think the turbos a gonner!
- gsi engine tapping
- cooling light on dashboard
- holding back
- turbo timer
- turbo lag
- Breather Pipe
- Lumpy Idle
- Had the car with spanner light on yest..
- remap
- Chatter from dump valve
- How much play on turbo shaft
- grrr dreading O2 sensor again(P0130)
- what is this bit?
- hissing noise
- 280hp stock piston?
- What Fuel ??? Z20LET and uni intercooler
- remap done! : )
- regel remap rant
- fao z20let folkes
- Universal Intercooler.
- Turbo Cooling Mod Revisited
- 2.2 airbox on a Z20LET
- which box is best for this engine
- newbie
- New sports cat problems...
- I got bored!!
- Warm up/Cool down (Turbo noob!)
- psi on phase 1 roughly???
- What exactly...
- Whats the Diffreence between VXR and GSI injector rails
- Can Anyone Help With My Gsi, Traction Control Fault Code???
- coupe turbo gearbox
- C0710 Fault Code Any Idea Which Component Is Faulty
- smell....
- air filters
- blue smoke!
- Greddy e-manage on z20let
- Will this fit the Astra VXR?
- Astra Z20LET High Performance Front Pipe
- CS3 or CS4?
- De-restrict airbox.... etc
- Exhaust
- Slight smell of burning oil
- Cost of ZLET inj?
- Powertune...
- Is this normal??
- Strange boost drop in 3rd gear
- Stones and oil In intercooler????