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Old 04-21-2013, 11:21 PM   #1
Scooby Specialist
Member#: 90436
Join Date: Jul 2005
Chapter/Region: SCIC
Location: LA, CA
2005 STI
Obsidian black pearl

Default Dyno Tune 2.5L VF39 317 whp

Event: dyno pull
Location: DD Performance Research LLC
Ambient Temp: 80's
Elevation: 175 ft
Weather: sunny
Track and Conditions: n/a
Tires: BFG KDW2's 245/45/17

Car: 2005 STI
Tuner: ME
Dyno Info: Dynojet 424xLC2 with linx
Transmission: 6spd stock gearset
Gear: 4th
Peak HP at RPM: 317
Peak Torque at RPM: 341
Baseline hp/tq for a stock on same dyno: 2012 sti 248 hp 275 wtq
Target Boost: 19
Target AFR: 10.8-11.2
Fuel: Chevron 93
Engine/Power Modifications: Injen FMIC, AEM CAI, B&B divorced wg catless, down pipe, DDPR modified borla hush twin tip Catback Exhaust, Perrin Crank pulley, Hallman MBC, Cobb APv2
Driveline Modifications: Stock flywheel, ACT clutch.
Suspension Modifications: Stock
Other Modifications: 2.5 RS hood, No rear wing.

Yet another stg2 sti dyno plot........

Except that its MINE!

I finally ditched the stock catback exhaust for a Borla Hush twin tip.

I had to make a few small changes to the Borla. The biggest was getting rid of the stock 2.5" donut gasket/flange and replacing it with a 3" Vband. I also did a few small changes to the position when the V-band was welded in.

The end result is a true 3" turbo back exhaust that turned out to be just slightly louder than stock. Just enough to hear the rumble below 3K rpms and putting around town.

I also installed a new OEM flywheel and ACT clutch, along with new trans fluid, and engine oil change. 74K on the ODO.

Here is the best run from last year, after I moved to Texas (run file 007) VS today's final tuned pull (run file 021)

Note, I was on stock clutch & stock catback on runfile 007.

Here is just the new clutch, borla catback vs stock catback, stock clutch:

Here is the results just from tuning today:

And finally here is my final tuned pull against a stock 2012 sti:

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