Nissan 370Z Forum - Fast Intentions exhaust is here!

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Hey Tony, is it possible to get some exterior decibels for the 12" and 18" resonators and HFCs?

Numbers looks great, now for the video!!

WOW! I'm impressed. Great work Tony!

great work FI! 20whp is very impressive :tup:

Hell yeah! Waiting on Berk to get their stuff finished up finally and I will decide...

Awesome results, Tony. Props to you and your team for your excellent work!

Quote:

Originally Posted by F.I. Inc. (Post 111124)

UPDATE-

Here is where we are at so far:

Baseline (Stock)
Run 1- 281.94 RWH / 241.25 RWT
Run 2- 276.51 RWH / 241.52 RWT
Run 3- 284.12 RWH / 240.89 RWT
Baseline Average: 280.86 RWH / 241.22 RWT

F.I. TDX Cat Back 12" Resonators / Stock Cats
Run 1- 300.81 RWH / 251.08 RWT
Run 2- 301.62 RWH / 252.11 RWT
Run 3- 301.30 RWH / 253.89 RWT
F.I. TDX C.B. 12" Res. Average: 301.24 RWH / 252.36 RWT

F.I. TDX Cat Back 12" Resonators / F.I. Resonated Test Pipes
Run 1- 308.99 RWH / 259.05 RWT
Run 2- 310.24 RWH / 258.32 RWT
Run 3- 305.37 RWH / 258.70 RWT
F.I. TDX Cat Back 12" Res. / F.I. R.T.P. Average: 308.20 RWH / 258.69 RWT

F.I TDX Cat Back 12" Resonators / F.I. HFC's
Run 1- 304.35 RWH / 258.33 RWT
Run 2- 304.19 RWH / 258.25 RWT
Run 3- 305.79 RWH / 258.50 RWT
F.I. TDX Cat Back 12" Res. / F.I. HFC's Average: 304.78 RWH / 258.36 RWT

During the dyno runs of the HFC's & R.T.P's I started the think as to why it wasn't making more power. Then I reviewed the numbers and realized that they were pretty standard as far as gains go. Remember that this car has stock air boxes and stock air filters. The car is only taking in so much air so it can only let out so much exhaust. Now, I am confident that the HFC's and R.T.P.'s will play much more of a part when a good cold air intake setup is on the car.

The cat back itself, blew away our expectations! We are extremely pleased with the results.
Bottom line, our cat back gave a bone stock 370Z 6MT an average of 20 RWH more and 11 FT LBS. of torque over stock.

SOLD!

(when I have the money!)

Numbers on the 18" Res? Did you dyno with them?

Asking since it was recomended if you were going to run Berk HFC

Quote:

Originally Posted by Shift (Post 111228)

Numbers on the 18" Res? Did you dyno with them?

Asking since it was recomended if you were going to run Berk HFC

Theoretically, there shouldn't be a difference as resonators are straight through and don't obstruct flow.

It will mainly be sound difference on the Resonators size, also F.I. makes there on cats, so I doubt they will test with Berk cats.

Hey Tony what does the exhaust sound like with your (F.I.) HFC's on?

Edit: Keep up the excellent work!

Quote:

Originally Posted by FuszNissan (Post 111248)

It will mainly be sound difference on the Resonators size, also F.I. makes there on cats, so I doubt they will test with Berk cats.

I have no issues dynoing Berk's cats. Since we no longer use the same substrate I would be curious to see the difference, if there is any.

Quote:

Originally Posted by F.I. Inc. (Post 111292)

I have no issues dynoing Berk's cats. Since we no longer use the same substrate I would be curious to see the difference, if there is any.

My guess would be negligible difference, but you never know.

Hell yes Tony, I'm glad I preordered this exhaust from you :D Excellent work, can't wait to get it installed! :excited:

(except for the whole...I'm out of country for 1 month >_<)

Sweet! ....... I knew the wait for the FI 370Z exhaust would be worth it

Thanks again Tony

Berk or FI? decisions decisions