anyone use Perrin cat back 2.5 resonated with Perrin cold air intake? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

stlgrym3 · 02-20-2018, 05:47 AM

i'm thinking about getting the catback exhaust for sure, but noticed they also sell CAI, are they a good pair? i'm just looking for minimal power gain without any drama with CEL.

scottman · 02-20-2018, 07:26 AM

Do it!

cjd · 02-20-2018, 09:50 AM

Inlet and filter over the CAI, especially if you're not tuning for it.

NoHaveMSG · 02-20-2018, 12:08 PM

My car had the Perrin CAI when I bought it. It throws the MAF scaling way off. Don't buy it unless you plan on having to tune for it. LTFT were off 10% across the board.

finch1750 · 02-20-2018, 12:17 PM

Perrin CAI actually drops midrange power slightly for a higher RPM bump. Drop-in and inlet tube (or even just the drop in) will get you just as far for a DD. But neither of those things will produce a noticeable power gain really. Getting an OFT tune would do more and not have a CEL.

The Perrin catback is a nice piece that sounds great though. I would say get a Perrin drop in filter, catback, and an OFT. Then if you still want to clean up the engine bay get the Perrin inlet tube later on.

86geek · 02-20-2018, 12:29 PM

Quote:

Originally Posted by finch1750

The Perrin catback is a nice piece that sounds great though. I would say get a Perrin drop in filter, catback, and an OFT. Then if you still want to clean up the engine bay get the Perrin inlet tube later on.

Yup, I second that

NoHaveMSG · 02-20-2018, 01:15 PM

Quote:

Originally Posted by finch1750

The Perrin catback is a nice piece that sounds great though.

I wonder how the 2.5 differs in sound. I have a resonated 3" and when I added a catless header it sounded like a fart canned Honda.

finch1750 · 02-20-2018, 01:20 PM

Quote:

Originally Posted by NoHaveMSG

I wonder how the 2.5 differs in sound. I have a resonated 3" and when I added a catless header it sounded like a fart canned Honda.

Which headers? And whats the rest of the exhaust? It seems like this car can sounds way different with just one piece different. I had a Q300 that sounded like even though I have heard it sound deep on my other twins.

NoHaveMSG · 02-20-2018, 01:25 PM

Quote:

Originally Posted by finch1750

Which headers? And whats the rest of the exhaust? It seems like this car can sounds way different with just one piece different. I had a Q300 that sounded like even though I have heard it sound deep on my other twins.

Nameless header, Nameless catted FP. Had 3" resonated. Back on a stock cat back for now.

finch1750 · 02-20-2018, 01:29 PM

Quote:

Originally Posted by NoHaveMSG

Nameless header, Nameless catted FP. Had 3" resonated. Back on a stock cat back for now.

Probably the EL headers. The UEL is really what gives a deeper rumble. Doubt the 2.5" would sound any "better." I have the Miltek 2.5" resonated catback and it is deeper then the Perrin imo. I know a couple cars that run it around here and while the Perrin is deeper then most it still has a high pitched tone to it when accelerating I think.

My full set-up is Tomei UEL, Motiv OP,Berk catted FPO, and the Miltek catback

stlgrym3 · 02-21-2018, 04:09 AM

Quote:

Originally Posted by finch1750

Perrin CAI actually drops midrange power slightly for a higher RPM bump. Drop-in and inlet tube (or even just the drop in) will get you just as far for a DD. But neither of those things will produce a noticeable power gain really. Getting an OFT tune would do more and not have a CEL.

The Perrin catback is a nice piece that sounds great though. I would say get a Perrin drop in filter, catback, and an OFT. Then if you still want to clean up the engine bay get the Perrin inlet tube later on.

can you explain what OFT tune is to a newbie? by drop in filter, did you mean this? https://www.rallysportdirect.com/par...n-panel-filter

finch1750 · 02-21-2018, 04:35 AM

Quote:

Originally Posted by stlgrym3

can you explain what OFT tune is to a newbie? by drop in filter, did you mean this? https://www.rallysportdirect.com/par...n-panel-filter

OFT= Open Flash Tablet. It is one of the tuning options available for the FRS/BRZ. An overview on tuning can be found here http://www.ft86club.com/forums/showthread.php?t=29340

And yes, that is what we mean by drop in filter, as in it drops in the the OEM air box. Many companies make them besides Perrin as well.

02-20-2018, 05:47 AM	#1
stlgrym3 Senior Member Join Date: Nov 2011 Drives: 2017 Subaru BRZ Limited Location: socal Posts: 562 Thanks: 72 Thanked 51 Times in 44 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	anyone use Perrin cat back 2.5 resonated with Perrin cold air intake? i'm thinking about getting the catback exhaust for sure, but noticed they also sell CAI, are they a good pair? i'm just looking for minimal power gain without any drama with CEL.

02-20-2018, 12:17 PM	#5
finch1750 Undisputed El Presidente Join Date: Jun 2012 Drives: Zenki 37J ZN6 Location: Stockton, CA Posts: 11,593 Thanks: 9,403 Thanked 9,411 Times in 5,270 Posts Mentioned: 374 Post(s) Tagged: 33 Thread(s)	Perrin CAI actually drops midrange power slightly for a higher RPM bump. Drop-in and inlet tube (or even just the drop in) will get you just as far for a DD. But neither of those things will produce a noticeable power gain really. Getting an OFT tune would do more and not have a CEL. The Perrin catback is a nice piece that sounds great though. I would say get a Perrin drop in filter, catback, and an OFT. Then if you still want to clean up the engine bay get the Perrin inlet tube later on. __________________ "Just like how a strut bar somehow enables you to corner 20MPH faster around a cloverleaf on-ramp, when the reality is, you can do it already but you just don't have to balls to do it." - CSG David

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02-20-2018, 07:26 AM	#2
scottman Member Join Date: Jun 2012 Drives: 13 mt fr-s Location: Halton Hills, Ont. Posts: 171 Thanks: 73 Thanked 96 Times in 48 Posts Mentioned: 0 Post(s) Tagged: 1 Thread(s)	Do it!

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