catback vs intake+M370

kz34wa · 02-06-2014, 12:11 AM

I just want an opinion from everyone whether i should get the invidia gemini catback first or get the Stillen G3 intakes + Motordyne M370 first for the same price as the Invidia.

Heres a quick recap for hp gains from each option.

Catback = 13whp gain
G3 intake + M370 = 17whp + 10-14whp

I have fast intention test pipes that needs to be installed which will gain about 5-7whp.

After watching some youtube videos of just test pipes installed with stock cats, it sounds pretty loud already when you step on it.

reldas · 02-06-2014, 02:41 AM

get a catback. HP from mods doesnt add up that way, every mod you install doesnt add HP like +17 HP(catback) +10 HP(intake) +5 HP(manifold) +7 (pullley). More mods you add less power you will gain from each sequential mod, unless you go FI of course.

luigi90210 · 02-06-2014, 03:17 AM

Quote:

Originally Posted by kz34wa

I just want an opinion from everyone whether i should get the invidia gemini catback first or get the Stillen G3 intakes + Motordyne M370 first for the same price as the Invidia.

Heres a quick recap for hp gains from each option.

Catback = 13whp gain
G3 intake + M370 = 17whp + 10-14whp

I have fast intention test pipes that needs to be installed which will gain about 5-7whp.

After watching some youtube videos of just test pipes installed with stock cats, it sounds pretty loud already when you step on it.

hp doesnt stack on N/A applications, i say get the intake and exhaust, our cars dont really benefit from an intake manifold
plus stay away from invidia, 2.25in piping is unacceptable on any aftermarket CBE, look into the topspeed true dual exhausts, cheaper than invidia and it has 2.5in piping

kz34wa · 02-06-2014, 06:59 AM

Quote:

Originally Posted by luigi90210

hp doesnt stack on N/A applications, i say get the intake and exhaust, our cars dont really benefit from an intake manifold
plus stay away from invidia, 2.25in piping is unacceptable on any aftermarket CBE, look into the topspeed true dual exhausts, cheaper than invidia and it has 2.5in piping

Thanks for letting me know the invidia is actually 2.25" piping. Now i gotta look for another cat back system =P
Living in Australia, cat backs are not cheap coming from the US. XD

Gibby1113 · 02-06-2014, 05:17 PM

Isn't akaprovic from Australia? Might wanna look at their exhaust since you're local. It's pretty nice and expensive for anyone in the US since the shipping is a PITA

luigi90210 · 02-06-2014, 07:23 PM

Quote:

Originally Posted by kz34wa

Thanks for letting me know the invidia is actually 2.25" piping. Now i gotta look for another cat back system =P
Living in Australia, cat backs are not cheap coming from the US. XD

no problem
X force also makes a 2.5in true dual exhaust and they are based out in sydney iirc

only thing is that there is close to no info on that exhaust, it sounds nice, but thats about it, i know OBX-R copied their exhaust but again there is no info on that exhaust

a exhaust i recommend is the megan racing 3in Drift Spec true dual CBE, its under 1k US and its the cheapest 3in exhaust you can buy, another i would recommend is top speed's true dual exhaust, both their race spec and their Titanium/titanium look exhausts have 2.5in piping and they cost under $700 US

Chuck33079 · 02-06-2014, 07:27 PM

A 3" dual is way too big for NA applications. Stick with 2.5 unless your project involves turbos.

luigi90210 · 02-06-2014, 07:36 PM

Quote:

Originally Posted by Chuck33079

A 3" dual is way too big for NA applications. Stick with 2.5 unless your project involves turbos.

just thought id throw it out there since most CBEs that are 3in dual cost upwards of 2k

i dont mean to hijack the thread but what about supercharging? would a 3in be too much or should i stick with a 2.5in?

Chuck33079 · 02-06-2014, 07:40 PM

Fast Intentions recommended their 3" for turbos only. My guess would be that the sc would have a hard time making boost with that free flowing an exhaust.

H2O_Doc · 02-06-2014, 07:47 PM

Quote:

Originally Posted by luigi90210

hp doesnt stack on N/A applications, i say get the intake and exhaust, our cars dont really benefit from an intake manifold
plus stay away from invidia, 2.25in piping is unacceptable on any aftermarket CBE, look into the topspeed true dual exhausts, cheaper than invidia and it has 2.5in piping

Isn't it 60 mm?

luigi90210 · 02-06-2014, 07:54 PM

Quote:

Originally Posted by H2O_Doc

Isn't it 60 mm?

60mm OD not 60mm ID(someone correct me if im wrong though), their website just says 60mm piping, it doesnt specify whether its internal diameter or external diameter, and on many other websites and a few ebay listings have the exhaust listed as 60mm OD

for $800 i wouldnt even risk the chance of it being 2.25in piping and just get something that is for sure 2.5in piping

Quote:

Originally Posted by Chuck33079

Fast Intentions recommended their 3" for turbos only. My guess would be that the sc would have a hard time making boost with that free flowing an exhaust.

thanks Chuck +rep

MacLean · 02-06-2014, 09:06 PM

I say FCBE, then add the Gen 3 & M370. The Gen 3 & M370 is good & there no joke, but you will pay though $$$$.

reldas · 02-07-2014, 09:23 AM

Quote:

Originally Posted by kz34wa

Thanks for letting me know the invidia is actually 2.25" piping. Now i gotta look for another cat back system =P
Living in Australia, cat backs are not cheap coming from the US. XD

i live in australia aswell, i got fast intentions shipped over price wasnt to bad. btu i have heard acvapovic and it does sound nice but not loud enough for me

kz34wa · 02-07-2014, 11:31 AM

is there still a 3 month wait for fast intentions exhaust when you order it?

02-06-2014, 12:11 AM	#1 (permalink)
kz34wa Base Member Join Date: Dec 2013 Location: Australia Posts: 60 Drives: 10 370z GM 7AT Rep Power: 12	catback vs intake+M370 I just want an opinion from everyone whether i should get the invidia gemini catback first or get the Stillen G3 intakes + Motordyne M370 first for the same price as the Invidia. Heres a quick recap for hp gains from each option. Catback = 13whp gain G3 intake + M370 = 17whp + 10-14whp I have fast intention test pipes that needs to be installed which will gain about 5-7whp. After watching some youtube videos of just test pipes installed with stock cats, it sounds pretty loud already when you step on it.

02-06-2014, 02:41 AM	#2 (permalink)
reldas Base Member Join Date: Aug 2011 Location: Sydney Posts: 144 Drives: 09 Nissan 370z auto Rep Power: 14	get a catback. HP from mods doesnt add up that way, every mod you install doesnt add HP like +17 HP(catback) +10 HP(intake) +5 HP(manifold) +7 (pullley). More mods you add less power you will gain from each sequential mod, unless you go FI of course. Streetlife, 1cleanZ and DEpointfive0 like this.

02-06-2014, 05:17 PM	#5 (permalink)
Gibby1113 Enthusiast Member Join Date: Nov 2012 Location: On open empty highways Posts: 366 Drives: 40th anniversary Rep Power: 13	Isn't akaprovic from Australia? Might wanna look at their exhaust since you're local. It's pretty nice and expensive for anyone in the US since the shipping is a PITA __________________ 40th anniversary #450/1000 \| Takeda Attack CAI \| Ark DTS exhaust \| to be continued...

02-06-2014, 07:27 PM	#7 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	A 3" dual is way too big for NA applications. Stick with 2.5 unless your project involves turbos. luigi90210 likes this. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

02-06-2014, 07:40 PM	#9 (permalink)
Chuck33079 A True Z Fanatic Join Date: Nov 2011 Location: Houston Posts: 12,265 Drives: 2011 370ztt Rep Power: 29539	Fast Intentions recommended their 3" for turbos only. My guess would be that the sc would have a hard time making boost with that free flowing an exhaust. luigi90210 likes this. __________________ 2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

02-06-2014, 09:06 PM	#12 (permalink)
MacLean A True Z Fanatic Join Date: Apr 2012 Location: Houston Posts: 1,589 Drives: '12 GM Nismo # 0445 Rep Power: 16	I say FCBE, then add the Gen 3 & M370. The Gen 3 & M370 is good & there no joke, but you will pay though $$$$. luigi90210 likes this. __________________ l Meisterschaft Full Cat-Back Exhaust l F. I. Resonated High Flow Cats l Stillen Gen 3 l M370 Intake Manifold l UpRev l JWT Clutch & Flywheel l ZSpeed HD CSC l Stillen 19 Row Oil Cooler l ZSpeed Powercoated Under Tray l GTSpec: 6, 4, 2 Point Brace l

02-07-2014, 11:31 AM	#14 (permalink)
kz34wa Base Member Join Date: Dec 2013 Location: Australia Posts: 60 Drives: 10 370z GM 7AT Rep Power: 12	is there still a 3 month wait for fast intentions exhaust when you order it?

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