Every dyno reads different and every car perform different. Completely identical mods will not yield you identical results. Even after being tuned by the same tuner. I have all the basic bolt on parts on the car other then pulleys. My sig says it all.

yeah I know they're all different, I just figure you'd be a bit higher with everything. Did you have everything done at the same time? If you had things done separately, do you have dyno pulls between to see what each gave you? I am really hoping the headers give me at least 20whp to justify the cost.

What kind of dyno was it? What did you put down with all the bolt ons and then after the retune?

What did you put down prior to installing the TP and headers?

I never did a baseline prior to the mods, but our cars usually make around 270-280whp stock.

along with the swap to Z1 350z test pipes, it bolted right up to my exhaust.

Track cars make more. It's just there nature.

mine are scheduled for deliver today! Will be installing them Tuesday as long as I do not end up working while I am at the shop, got the car back yesterday with the new trans, shifts way better than the original, hopefully it stays that way.

Are you going to do a dyno before and after?

Well Z1 emailed today telling me they forgot to inform me when I ordered them that they first batch is gone, a few weeks for the next one...sigh. I did not plan on doing a current run, I am already invested, plus not too many dynos around these sticks, but a guy at work just finished his srt swap in his neon and a local shop wants him to run on the dyno there for publicity(its an american car oriented shop) His tuner put down 516 whp on c16...yikes. He is running low 11 1/4 miles. I might tag a long and embarrass myself on the dyno while he is there haha.

Updates?

:confused:

Forgot if I've posted in this thread or not yet. We've got a set on order from Z1's next batch (original order time was beginning of June, ETA was end of June for delivery)

Our customer is going from stock headers + HFC (already tuned, 317 whp) to z1 headers + AAM test pipes + retune

Will post results when everything goes down!

Stock exhaust?

Nooo haha full mod list is
AAM R-LINE intakes
AAM HFC
AAM 2.5" true dual
Motordyne M370
Uprev

but now he will be getting the z1 headers + AAM TP with a retune