Fast Intentions exhaust is here! (continued)

Leuz · 05-31-2013, 05:43 PM

#769 est ship date: 7/25-8/8/2013

synolimit · 05-31-2013, 06:23 PM

Quote:

Originally Posted by XwChriswX

Because the kit is built to fit perfectly from the start. Flex pipes account for inadequacies of designs.

Really? Proof of this? Seems to me like it would take off stress of things. Yes the CBE is supported by rubber hangers so it can move but to me it still seems like major stress at the header to head location. Probably why race applications require your to safety wire those nuts.

Quote:

Originally Posted by forza370z

The flex pipes give more room to adjust for the fitment, but when the car moves all the moving force is applied to the flex pipes thus it's easy to sag and broken after the time. I think Tony explained this somewhere. Just can't find it now.

Hmm ill have to find that. Makes no sence to me at the moment.

Edit, quick google turned this up first. Seems I'm not alone

http://g35driver.com/forums/intake-e...flex-pipe.html

XwChriswX · 05-31-2013, 06:30 PM

Quote:

Originally Posted by synolimit

Really? Proof of this? Seems to me like it would take off stress of things. Yes the CBE is supported by rubber hangers so it can move but to me it still seems like major stress at the header to head location. Probably why race applications require your to safety wire those nuts.

Read any of the dozens of FI customer reviews. This exhaust is constantly complimented on it's ease of install and borderline Better than OEM fitment. Tony and his crew did an outstanding job making sure you could literally pull this out of the box having little or no technical expertise at all, and install it with Zero problems.

Flex pipes account for vibrations, and motions from the engine/header/cbe, yes. However, typically they are not made from the same grade of steel as the rest of the exhaust, so they will rust out. 2ndly, they are typically lower at their point under the body than the rest of the system so they have a potential to scrape easier. 3rdly, a lot of companies use them so that their system doesn't quite have to fit exactly right, there is room for error. Tony doesn't operate like this, nor should anyone else. You make it fit, or you scrap it and start over.

XwChriswX · 05-31-2013, 06:33 PM

Quote:

Originally Posted by synolimit

Edit, quick google turned this up first. Seems I'm not alone

Question about exhaust without flex pipe - G35Driver

So they're willing to install a part they know will eventually fail? Over installing a part that could possibly fail??

I've got one of the earlier systems, LTHs + CBE. I have zero cracks, leaks, or noticed any weakening of the system. 3 years and counting.

synolimit · 05-31-2013, 08:09 PM

Quote:

Originally Posted by XwChriswX

Read any of the dozens of FI customer reviews. This exhaust is constantly complimented on it's ease of install and borderline Better than OEM fitment. Tony and his crew did an outstanding job making sure you could literally pull this out of the box having little or no technical expertise at all, and install it with Zero problems.

Flex pipes account for vibrations, and motions from the engine/header/cbe, yes. However, typically they are not made from the same grade of steel as the rest of the exhaust, so they will rust out. 2ndly, they are typically lower at their point under the body than the rest of the system so they have a potential to scrape easier. 3rdly, a lot of companies use them so that their system doesn't quite have to fit exactly right, there is room for error. Tony doesn't operate like this, nor should anyone else. You make it fit, or you scrap it and start over.

Install and fitment don't worry me though, longevity does of other parts or weld joints. From what I read I have to disagree with everything you said respectfully. The MXP CBE for example I guarantee doesn't scrape nor any other CBE system I ever had like Turbo XS or Invidia. Also I don't think companies would sell $1000+ CBE and use mild steel flex pipes. I just checked my TXS flex section and its 304SS as my neodymium magnet will not stick. A google search also comes up with no flex sections that aren't 304SS braided. Now the end caps might be 409SS but that will still out last the car. One last thing, if the flex sections scraped than so would mufflers and resonators as they are much thicker in diameter than any flex pipe. The flex pipes are bolted right buy the cats which will not move that much. Ever flexed a flex pipe? You get maybe 1/2" in trying to move them. No where near enough to touch the ground unless a company has the pipe hanging to low.

synolimit · 05-31-2013, 08:18 PM

Quote:

Originally Posted by XwChriswX

So they're willing to install a part they know will eventually fail? Over installing a part that could possibly fail??

I've got one of the earlier systems, LTHs + CBE. I have zero cracks, leaks, or noticed any weakening of the system. 3 years and counting.

How? This is 50'000 miles, 3 harsh ohio winters, 300 plus HP, almost 400 TQ from a turbo so much hotter gas, and besides surface rust on the pipe that happens in ohio which you can see comes right off where I polished it, it looks beautiful with no leaks. You saying a flex pipe will fail eventually is the same as me saying your header will crack and leak since it has no flex pipe in the system and since the header isn't made of 321SS. Anything could happen but from my racing experience you need a flex pipe on big motor high HP applications. You might be ok though since these motors have no TQ!

JC671 · 05-31-2013, 08:59 PM

Synolimit if that is what your use to and feel comfortable (having a flex pipe) for your ease of mind then by all means go buy an exhaust or header that has one. After Chris explained the reason behind F.I. part of not having one and the countless of reviews and support. If you still don't like the answer or the exhaust then look elsewhere.

As far as your TQ comment, I'm guess your basing your opinion because or your two WRX's you have. That is a bad comparison. You are comparing a turboed boxer engine vs a N/A V6. Not exactly the closest thing to compare to.

Please save your opinions war for PMs and if you have further questions I suggest calling F.I. directly.

Sales@F.I. Inc. · 05-31-2013, 09:29 PM

Quote:

Originally Posted by F.I. Inc.

So I just wanted to chime in on this one a little bit. Believe it or not, I have been asked this question many times over the past 9 years ever since we started making exhaust systems for the 350Z/G35 Coupe. Here is why we do not use "Flex Joints" within our 2.5" cat back exhaust system. Please try and keep an open mind when reading my reasons because some of them are facts a few are opinions and some of them are based off of experiences.

-Flex joints are designed to give you more adjustability in the exhaust fitment, yes. However they are there to soak up in consistency in slight alignment issues. If an exhaust system is not produced to the exact spec of what it is bolting up to, the flex joint will allow you to fudge it and make it fit. This is not the correct way to do things. Sure it will take the bind off of the exhaust system and in turn shift the bind into the flex joint.

-In the case of this specific car the first rubber hangers that hold the exhaust up are located right in front of the rear sway bar. That is physically far away from either the transmission brace on the catalytic converters or the head of the engine. Now if you put flex joints directly in the front of the exhaust system everything behind them will (weigh) on them. This puts a lot of stress on them and after time they will deteriorate and eventually sag or worse yet, blow out and create an exhaust leak.

-They will decrease ground clearance.

-They add material cost and production time to the build process.

-The list goes on and on but in the grand scheme of things, your engine sits in rubber motor mounts. Your exhaust system sits in rubber hangers. Your exhaust system is indirectly bolted to your engine through your cats and manifolds. Nothing is solid mounted to the car and as the engine torques, the exhaust torques with it.

Thats all I have for now. Thank you for your time.

Tony

From page 121. Hope this clears everything up

SS_Firehawk · 05-31-2013, 09:40 PM

This is the same guy who bought a Top Speed exhaust... Just sayin.

Baer383 · 05-31-2013, 09:48 PM

I think it is funny as hell to see people come on this fourm and want to (or already know how) reinvent the wheel,and think they know more than the manufacturer that made the exhaust.

synolimit · 05-31-2013, 10:28 PM

Quote:

Originally Posted by SS_Firehawk

This is the same guy who bought a Top Speed exhaust... Just sayin.

Umm wrong as usual. Go ship more broken boxes with parts to people and let the men talk.

synolimit · 05-31-2013, 10:35 PM

Quote:

Originally Posted by Blake@F.I. Inc.

From page 121. Hope this clears everything up

Thanks for your opinions on the matter. Looking forward to the test pipes

Quote:

Originally Posted by JC671

Synolimit if that is what your use to and feel comfortable (having a flex pipe) for your ease of mind then by all means go buy an exhaust or header that has one. After Chris explained the reason behind F.I. part of not having one and the countless of reviews and support. If you still don't like the answer or the exhaust then look elsewhere.

As far as your TQ comment, I'm guess your basing your opinion because or your two WRX's you have. That is a bad comparison. You are comparing a turboed boxer engine vs a N/A V6. Not exactly the closest thing to compare to.

Please save your opinions war for PMs and if you have further questions I suggest calling F.I. directly.

Ill add one. I see their answer, I disagree as I stated with everything I've said like ground clearance so we can leave it at that. I just wanted an answer and I got theirs so end of story.

Quote:

Originally Posted by Baer383

I think it is funny as hell to see people come on this fourm and want to (or already know how) reinvent the wheel,and think they know more than the manufacturer that made the exhaust.

All manufactures of cars that pay millions and millions of dollars into R&D use donut gaskets, flex pipes or both so its not me reinventing the wheel! It's FI doing something different so pardon my questioning when I see something out of the major norm!

Baer383 · 05-31-2013, 10:39 PM

Quote:

Originally Posted by synolimit

It's FI doing something different so pardon my questioning when I see something out of the major norm!

You shouldn't question an exhaust company on how they do something when they have sold about 800 sets of this CBE and a waiting list 3-5 months ,also use sets of these go for like 1000 bucks used.

I would either get inline and wait,or I don't know go with Topspeed.

SS_Firehawk · 05-31-2013, 11:06 PM

Quote:

Originally Posted by synolimit

Umm wrong as usual. Go ship more broken boxes with parts to people and let the men talk.

Well you sure did have a hard on for it.
Setup and catalitic converter question???

And FYI, I didn't ship that box, I coordinated the sale. Next time try and be accurate about the dirt you try to dig up and throw. You don't even know the full story behind it to comment. You plan on buying this instead and using a HFC as a muffler and attach it to the X pipe now? Wait, you are gonna tear it apart and add flex joints.

kfull · 05-31-2013, 11:14 PM

Can't we all just get along!?!?!

05-31-2013, 05:43 PM	#2371 (permalink)
Leuz Track Member Join Date: Nov 2012 Location: NorCal Posts: 555 Drives: Bunny Rep Power: 14	#769 est ship date: 7/25-8/8/2013 __________________ 2013 PW 370Z Touring+Sport, NAV Tint 35% side, 18% back \| RJM clutch pedal \| ZSpeed SS lines \| Stillen Gen3 CAI \| Fast Intentions HFC and TDX 12'' CF CBE \| UpRev

05-31-2013, 08:59 PM	#2377 (permalink)
JC671 Enthusiast Member Join Date: Feb 2011 Location: Guam Posts: 451 Drives: Toretto around Rep Power: 14	Synolimit if that is what your use to and feel comfortable (having a flex pipe) for your ease of mind then by all means go buy an exhaust or header that has one. After Chris explained the reason behind F.I. part of not having one and the countless of reviews and support. If you still don't like the answer or the exhaust then look elsewhere. As far as your TQ comment, I'm guess your basing your opinion because or your two WRX's you have. That is a bad comparison. You are comparing a turboed boxer engine vs a N/A V6. Not exactly the closest thing to compare to. Please save your opinions war for PMs and if you have further questions I suggest calling F.I. directly. __________________ A special "Thank You" to the Fast Intentions Crew! "Fueled By Passion"

05-31-2013, 09:40 PM	#2379 (permalink)
SS_Firehawk Premium Member Join Date: Oct 2011 Location: Tampa Posts: 4,142 Drives: 13' Magma Red Nismo Rep Power: 7335	This is the same guy who bought a Top Speed exhaust... Just sayin. XwChriswX likes this. __________________ Old Car:GTM TSC'd 550whp / 410lbft tq @ 11.88PSI New Car: Under Construction

05-31-2013, 09:48 PM	#2380 (permalink)
Baer383 A True Z Fanatic Join Date: Aug 2010 Location: Lawrenceville,Ga Posts: 4,293 Drives: My foot up your azz Rep Power: 30	I think it is funny as hell to see people come on this fourm and want to (or already know how) reinvent the wheel,and think they know more than the manufacturer that made the exhaust. XwChriswX likes this. __________________ 2013 ZL1 754 rwhp 747 rwtq

05-31-2013, 11:14 PM	#2385 (permalink)
kfull Track Member Join Date: Mar 2012 Location: Massachusetts Posts: 909 Drives: A lot Rep Power: 14	Can't we all just get along!?!?! __________________ 2012 GM 6MT sports package \| FI non res cf exhaust \| K&N Drop Ins \| Viper 3303 security system w/ tilt sensor \| GTR start button \| 35% rear 45% side window tint \| Michelin PSS

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Fast Intentions exhaust is here!	F.I. Inc.	Intake/Exhaust	8307	06-09-2012 03:32 PM
Fast Intentions exhaust just ordered	Jmigs81	Intake/Exhaust	32	02-12-2012 04:39 PM
Fast Intentions Exhaust	Mark Gomez	Intake/Exhaust	13	05-19-2011 08:51 PM
ARK Exhaust vs. Fast Intentions	dnasty370z	Intake/Exhaust	61	09-06-2010 07:25 PM