My agency power exhaust dyno results - Page 2 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

clayrush · 09-08-2012, 08:53 PM

Quote:

Originally Posted by deedzman

How many miles are on your car?

4k

Rampage · 09-09-2012, 12:52 AM

Quote:

Originally Posted by clayrush

This is a dyno of just the cat back system. The base 167 HP and 134 TQ. on a mustang dyno. our first run we gained 0 HP. On our second we gained 1 HP and 2 TQ. We decided to pull the power and reset the ECU. Then we got a 173 HP and 141 TQ, again of 6 HP and 7 TQ

Reading this makes me think of the HP and TQ gains that Boosted 2.0 got just by resetting the ECU. So did the exhaust actually provide any gains? The question may still be unanswered.

tintumz22 · 09-09-2012, 01:11 AM

Awesome exhaust clayrush! Looking forward to see this in person!

audioenvy · 09-09-2012, 02:15 AM

I'm no expert but given that you had to reset the ECU to see any power gains I think this is anecdotal evidence that at near-stock power levels the stock exhaust is not a power limiter. in other words, buy this (and other aftermarket exhausts) for the sound or the look or the weight savings perhaps but NOT for power gains. IMO.

clayrush · 09-09-2012, 03:23 AM

Quote:

Originally Posted by audioenvy

I'm no expert but given that you had to reset the ECU to see any power gains I think this is anecdotal evidence that at near-stock power levels the stock exhaust is not a power limiter. in other words, buy this (and other aftermarket exhausts) for the sound or the look or the weight savings perhaps but NOT for power gains. IMO.

Yeah yall are probably right. I hope we get something with an intake at least. Who knows the cpu could be all like "screw your muffler and better air flow, I aint gonna use that shit."

gmookher · 09-09-2012, 10:17 AM

wow those tips are way too long

Dave-ROR · 09-09-2012, 10:23 AM

That fitment is actually better than the horrible fitment of the Agency Power exhaust I saw on another car.

The AP Header does sound like a good old Subaru though. (I know you don't have that part, just saying).

ttknf · 09-09-2012, 11:01 AM

Quote:

Originally Posted by gmookher

wow those tips are way too long

I agree. I wonder if they'll be any issues of carbon build-up on the rear of the car as a result.

Sportsguy83 · 09-09-2012, 11:05 AM

Quote:

Originally Posted by ttknf

I agree. I wonder if they'll be any issues of carbon build-up on the rear of the car as a result.

Honest question, why would there be carbon build up in the back if the tip ends are farther away from the car than normal?

gmookher · 09-09-2012, 11:20 AM

I dunno, I spoke to Vivid, and had higher hopes, seems they pitch AP pretty hard- same company, and well, I'm just not impressed with the AP stuff based on my reads and pics..

They seem to keep sending out stuff that doesnt help their PR, and then it seems they are playing damage control. I dunno, anyone else catching this?

ttknf · 09-09-2012, 10:19 PM

Quote:

Originally Posted by sportsguy83

Honest question, why would there be carbon build up in the back if the tip ends are farther away from the car than normal?

Instead of ending up on the underside and backside of the grey-black "diffuser" part, the exhaust gas goes up onto the rear bumper and trunk. On some cars, there will even be paint yellowing (on white cars).

Sportsguy83 · 09-10-2012, 07:23 AM

Quote:

Originally Posted by ttknf

Instead of ending up on the underside and backside of the grey-black "diffuser" part, the exhaust gas goes up onto the rear bumper and trunk. On some cars, there will even be paint yellowing (on white cars).

Thanks for kindly explaining. I ask because I have always seen this happen with exhausts which tips were too far in. Time will tell.

@clayrush keep us updated.

milenko11 · 09-10-2012, 09:04 AM

Quote:

Originally Posted by ttknf

Instead of ending up on the underside and backside of the grey-black "diffuser" part, the exhaust gas goes up onto the rear bumper and trunk. On some cars, there will even be paint yellowing (on white cars).

My pearl white wrx turned yellow and I didn't even have an exhaust. It's why I went wrb for my BRZ.

PrimeMotoring · 09-10-2012, 09:48 AM

Here's a pic on my car. Theres a middle sleeve that allows you to bring the axle back section forwards or backwards depending for your preference. I have the full header back including the catless overpipe, gotta dyno it and see how it is with e85 tune since all my baseline dynos up until this point are recorded thanks to Visconti.

09-09-2012, 02:15 AM	#18
audioenvy Member Join Date: Sep 2012 Drives: 2010 Nissan GT-R Location: Raleigh, NC Posts: 22 Thanks: 1 Thanked 24 Times in 7 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I'm no expert but given that you had to reset the ECU to see any power gains I think this is anecdotal evidence that at near-stock power levels the stock exhaust is not a power limiter. in other words, buy this (and other aftermarket exhausts) for the sound or the look or the weight savings perhaps but NOT for power gains. IMO. __________________ Visconti tuned for E85 on Ecutek

09-09-2012, 10:23 AM	#21
Dave-ROR Site Moderator Join Date: Dec 2010 Drives: Stuff Location: Florida Posts: 10,317 Thanks: 955 Thanked 5,965 Times in 2,689 Posts Mentioned: 262 Post(s) Tagged: 8 Thread(s)	That fitment is actually better than the horrible fitment of the Agency Power exhaust I saw on another car. The AP Header does sound like a good old Subaru though. (I know you don't have that part, just saying). __________________ -Dave Track cars: 2013 Scion FRS, 1998 Acura Integra Type-R, 1993 Honda Civic Hatchback DD: 2005 Acura TSX Tow: 2022 F-450 Toys: 2001 Chevrolet Corvette Z06, 1993 Toyota MR2 Turbo, 1994 Toyota MR2 Turbo, 1991 Mitsubishi Galant VR-4 Parts: 2015 Subaru BRZ Limited, 2005 Acura TSX Projects: 2013 Subaru BRZ Limited track car build FS: 2004 GMC Sierra 2500 LT CCSB 8.1/Allison with 99k miles Last edited by Dave-ROR; 09-11-2012 at 05:47 PM.

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09-09-2012, 01:11 AM	#17
tintumz22 Senior Member Join Date: May 2012 Drives: 2013 Scion FR-S Toyota 86 Location: Bay Area Posts: 1,077 Thanks: 1,234 Thanked 313 Times in 195 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	Awesome exhaust clayrush! Looking forward to see this in person!

09-09-2012, 10:17 AM	#20
gmookher Banned Join Date: Aug 2012 Drives: VortechSC,BorlaEL,Perrin,GCRace Location: HighHeatHighAltitudeAZ,USA Posts: 2,254 Thanks: 458 Thanked 669 Times in 394 Posts Mentioned: 9 Post(s) Tagged: 2 Thread(s)	wow those tips are way too long

09-09-2012, 11:20 AM	#24
gmookher Banned Join Date: Aug 2012 Drives: VortechSC,BorlaEL,Perrin,GCRace Location: HighHeatHighAltitudeAZ,USA Posts: 2,254 Thanks: 458 Thanked 669 Times in 394 Posts Mentioned: 9 Post(s) Tagged: 2 Thread(s)	I dunno, I spoke to Vivid, and had higher hopes, seems they pitch AP pretty hard- same company, and well, I'm just not impressed with the AP stuff based on my reads and pics.. They seem to keep sending out stuff that doesnt help their PR, and then it seems they are playing damage control. I dunno, anyone else catching this?

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