Curios because my aim was to have a daily tune for around 330 and a track day tune for a bit more - around 350. Noticed you had yours at 348 and wondered what PSI you were running. Mine is doing 350 with 17 psi. but to get it to go lower is proving difficult. it is at 335 now with 16psi and I already have an FG turbo housing fitted deliberately so that I wouldn't have to port it. but looks like that's what we are going to have to do anyway now. we've already modified the turbo intake and that is not my preferred method. I would like a daily tune that runs 14psi for better engine longevity.

I appreciate you guys are going for maximum power there, but thought that you may have fiddled around a bit and tried some different stuff out of curiosity yourselves.....hence, the question. Anyway, thanks for your input so far.

Edited July 12, 200917 yr by F6T

does nizpro make an exhaust for the FG utes? probly the only one id upgrade the stock system for.

pretty sure that they might be developing something for the fg utes as we speak

F6T, so after a week of the new zorst, has your opinion changed on it at all?

Yep, I love it. I'm glad I've purchased. The sound under acceleration is simply - awesome. When off the throttle and rolling it is nearly whisper quiet and when coming down hill holding a higher gear, a nice burble/crackle but nothing too over the top - quite subtle actually. When you start her up cold there is about 1 or 2 minutes of a bit of booming but this settles completely once a bit of warmth gets into it. You can tell that the car means business when she bursts into life and when sitting idle at the lights. In 6th gear on 110km/h under not under much load barely any droning at all.

Nizpro have done an excellent job with this system....I just don't think it is really suited for lower power levels, that's all. But having said that, I wouldn't swap it now and I'm well and truley set up for any future increases in power.

I am going to get some footage and sound clips over the weekend.

Good to hear mate. I'm still waiting to get mine, but I'm sure the wait will be worth it.

Cheers for the update and looking forward to seeing the vids!

vids will have to wait until tomorrow now. It was crap weather down here in tastartica today. horrible, wet, windy, cold.....

we went out to get some footage but it was apparent that it was a recipe for disaster.

on a positive note, the more I drive the car, the more I like the exhaust. no regrets here guys.

I've recently been thinking about putting the nizpro 4" exhaust on my car.

Current mods are nizpro stage 1 plus, But without the nizpro cat. Didn't wanna put it on because it seemed like a waste if I was gonna buy the whole 4" system anyway. Make about 270rwks atm.

Does anyone know what sort of rwkw figure I will get with my current setup, plus the 4" exhaust.

Also I've heard that the new nizpro 4" exhaust drones at cruising speeds, is there anyone out there with this sort of exhaust that can say wether this is true or not? Cause I like the quiet system I've got at the moment.

1 last thing, Is it true Nizpro are developing an even newer 4"system, similiar to the xforce varex system, to overcome the drone? Has anyone heard of this?

Cause I'll be holding out for it if its true.

Sorry bout all the questions, but any help would be good. Thanks in advance.

You can just buy the varex muffler and put it on the sytem if you want. Not sure if you could get it in 4in though.

Pretty sure blueboost has used this on a ute and says for cruising they work very well.

my mate had a varex on his r32 skyline and he said it was the worst thing out