could yous tell me if i need a knocklink, i have a full 3"decat exhaust,fuel pump, plugs,filter and sti8 top mount. not remapped

 

Would be a good idea when the car has not been mapped

 

What Scooby do you have mate? JDM, UK, WRX, STi, what year etc..

Ns04

 

2001 wrx uk300

 

You're safer than most with a UK, non Sti, but personally I would get the knocklink, better safe than sorry. It's the first thing I got before I did any serious mods to my car, even though I was advised it should be fine. At the end of the day, it costs less than £200, a new engine/rebuild costs how much??

FWIW When I had my Walbro 255lph fuel pump uprated prior to a remap I was advised by my mapper to take it easy on the journey to him.

Ns04