Fast Intentions exhaust is here! (continued)

F.I. Inc.

I ask that you be patient. Your lead time is 6-8 weeks from when you placed your order. We always do our best to build and ship on time and sometimes early.

Thank you, Tony

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F.I. Inc.

Our 3" exhaust will be a great fit for your TT application regardless if you have a stock engine or built. The 3" will help relieve all pressure on the back side of the turbo increasing exhaust velocity and allowing the turbo's to spool faster. Sure, 2.5" will work just fine, especially for the over level you plan on being at.

We do have a full 3" setup. I have sold almost 2 dozen, but never got around to putting it up on our website. It will be on the new website which should be launched shortly. For now, here is a link to our 3" exhaust thread:

Fast Intentions 3" (Twin Turbo) exhaust is here!

Thanks, Tony

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V1H

Hi Tony, thanks for your helpful explanations.
I still have some questions.
I notice a distinctive design difference between your 2.5" and 3" TDX.
The 3" seems to use 3" TP in place of the downpipes, with the catalysers (100cell) now moved downstream into the lead pipes. On the 2.5" the cats still sit in the downpipes (factory positions), the lead pipes are thus straight (or resonated).

I wonder why the cats moved into the lead pipes. Is it just more temperature-friendly? And since the 3" uses testpipes only, does the O2 bung extension on the TPs still prevent CEL?

I'd be all up for going 3", not 2.5" if the only difference is better Turbo spool.
Any sound differences considering both non-resonated?

Most importantly I still wonder whether the 100cell cats pass M.O.T. here in the U.K.
Problem is I don't know how modern cars are emission tested (I've had an OBD1 Prelude before) and my Z is still too new for M.O.T
Do they actually sniff the emissions on the tailpipe (then the 100cells would surely fail?) or does the ECU merely give a pass/fail in which case one could trick the ECU into satisfaction?

F.I. Inc.

Don't mention it!

There is no difference in design between the 2.5" and 3" versions. The 2.5" version can also have a full down pipe starting at the exhaust side of the turbo. What we do is start the down pipe in 3" and than smoothly taper it down to 2.5". You can run the 100 cell cats in either system. They are moved down further in the exhaust stream to reduce the amount of heat that they will see. They will hold up much better in that location and being that they are 100 cell, they will do very little to hinder performance. Mainly they quiet down the exhaust note and help reduce the raw fuel smell coming from the tail pipes.

It is a safe bet to say that these cats will not pas your M.O.T. inspection considering that they are a race cat.

The "J" bend anti foulers are in place to trick out the ECU and keep the CEL off.

In the end, the 3" will be the way to go if you want to maximize turbo spool and reduce restriction. Achieving that zero psi back pressure on the exhaust side is imperative to maximizing performance.

Think that this covers it for now.

Thanks, Tony

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DEpointfive0

^Go to sleep!!!

And I got a RTS package because I suck at writing...... Or they suck at reading... lol
Will be resent Monday

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Bullit79

Just installed my 18" resonated SS system. Unfortunately, it started to rain right as I was taking her down off the jackstands Still, loved the sound during the first start. Can't wait to take her down the interstate to see what it sounds like then.

One thing I have to note is my 2012 Z didn't have the evap canister cover installed Spent about 10 mins trying to figure out what to remove before I realized it wasn't there. Anyway, wondering if the Z stopped coming with the cover or did the previous owner remove it. My car didn't show signs of mods when I bought her, but maybe I'm wrong. Though the PITA nut on the Y-pipe seems to support the no-mod theory.

Luciano13

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XBarbarian

sweet!

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F.I. SS 18" CBE

megalapagas

My only complaint is that the Sweet Sound of My Setup makes me keep my foot to the floor that is all hahahaha

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cooltoy

Agree.

I ordered on Nov. 21st, but got bumped up by probably 10 numbers, as I took over a previous order. Don't care how long it takes, as long as it not rushed.

Riptide67

Tony, can you please message me a price for the non-resonated section of the system and approximate lead time? Thanks!

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NickShoelace

I'm #882, ordered back on October 22. Confirmed that mine is shipping out on Friday, January 24th! Cannot wait!

cooltoy

So exactly 3 month. Right on schedule.

Shen168

#889 Ordered on Nov 7th

Bullit79

Finally was able to take the Z out on the interstate and I must say I LOVE this exhaust. I was concerned that 18" resonated would be too quiet, but I can still hear the purr of the exhaust while cruising. And any time I need to pass someone, music to my ears!

Thanks to Tony and the whole FI crew for making such a great product!