“I’ve been running these Yellow Jackets now for 3 months in my R33 GTR. Still no problem with spark blowout as I previously did with the old coils, and still plenty of power! Done 2 HARD track days with no problems at all. Even added extra timing. Now at 28deg at 8000rpm WOT! Over 320+kw now!”

ASHLEY SMITH – MELBOURNE

“I have now bought a second set of Yellow Jackets for a mates R32 GTR which had a constantly changing misfire, even after gapping the plugs to 7mm and replacing them. He wanted to upgrade the turbo’s for higher boost, so I said he would have to change the coilpacks. He was dubious that this would fix ALL his problems, so the turbo’s were fitted. No improvement of the misfire after installing the turbos, running them in and resetting the ECU. So I fitted the coils, gapped the plugs to 1.1, and reset the ECU. He didn’t believe me that …

MATT BOWER – WOLLONGONG

“Unfortunately, out doing a “road test” in the R33 GTR, with the street tires, and now with bucket loads of extra torque, managed to break second gear. Same sort of use/abuse with the old coils packs couldn’t produce the same 4 wheel power slides, just under heavy acceleration! Luckily I had a spare gearbox, so I could make it to the track days”.

STEVE T – CANBERRA