Anthony's_Scooby

I have a MY95 UK, the engine is currently standard apart from the K&N Induction kit.

I want to add a full decat exhaust, will this create any problems, does it need the ecu remapped (if thats possible on this model?) Should I be doing anything else at the same time?

I want the car to reliable and easy to dry, I use it everyday.

What sort of performance increase should i be expecting? if any, will it be noticeable or will it mainly be just an increase in noise?

Thanks for advice.

PS What is a AFR and a Knocklink, and what are the used for?

The_Judge

A full decat may create problems between you and your neighbours...

The only problem it might create is overboost. This is easily cured by tweaks to wastegate/restrictor or worse case scenario, a manual boost controller. You won't need a remap (and I don't think it's possible for your MY).

You certainly won't be making it any less reliable.

Performance-wise, you could be looking at up to 30bhp increase. Dunno how much extra torque, but you'll certainly notice the difference in drivability.

Noise-wise, see first line of this reply...

AFR is air/fuel ratio. An AFR gauge monitors the signal sent to your ECU from your lambda sensor in your exhaust manifold. This allows you to see exactly what the ECU is seeing. The main requirement for an AFR gauge is to show that your lambda and MAF sensors are working correctly.

A Knocklink is a sensor and display unit. The sensor is mounted on the engine block, and is basically a microphone that listens for knock within the cylinders. The display unit looks like this:-



When the sensor hears knock, the LEDs illuminate, starting at the bottom green. The severity of knock the sensor hears, determines how far up the scale the LEDs illuminate. It's a useful device for a turbocharged car, and essential for a modified turbocharged car, as knock/detonation/pre-ignition are engine killers.