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Thread: Exhaust vid Doug Thorley Tri-y's and magnaflow 16795

  1. #11
    Technical Advisor Patrick G's Avatar
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    Quote Originally Posted by turtlesdove3 View Post
    How much did you pay the installer?
    $200. Plus he got a before and after dyno pull to show the gains of the headers alone. Then it was tuned. The tune cost $400 (which included all dyno pulls and road testing afterward).

    2013 Corvette Grand Sport A6 Forged LME 416, Greg Good ported TFS 255 LS3 heads, EPS 222/242 .629/.604" 121LSA cam, ECS Novi 1500 supercharger running 11psi, ARH 1 7/8" headers, NPP exhaust, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwhp on race gas, w/stock street manners.
    2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads, FAST 102, 231/231 114LSA cam. 506rwhp/442rwtq.
    11.413 @ 121.29mph 1/4 mile, 168.7mph Texas Mile (all performance stats from 2010).
    2014 GMC Yukon Denali XL 6.2L Air Raid MIT, VVT tuned to the max w/EFI Live.
    2000 Pewter Ram Air Trans Am M6 heads/cam 508rwhp/445rwtq, 183.093mph Texas Mile
    LS1,LS2,LS3,LS7 Custom Camshaft Specialist For custom camshaft help press here.
    Custom LSX drivability & dyno tuning: for appointment press here.

  2. #12
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    definatetly the guy to goto I went to Pat's this week and am very impressed got dynoed and then went on a road test and boy does my car drive great. Definately worth the drive.
    2009 G8 GT Mods: Roto-Fab CAI, Pypes axlebacks, HSRK, LP mod, Kooks LT's 1 7/8 into 3"x-pipe, UD pulley, Circle D 2800-3000 converter, pcmforless tranny cooler, PATRICK tune. Now hope fully in the future a MAGGIE supercharger.

  3. #13
    VIP Member Blackrider's Avatar
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    What were the gains?
    2008 MazdaSpeed 3 - A few Mods
    2009 Panther Black G8GT -
    VMS ECU/TCU Tune, Vararam Intake, FasterProms Ported Intake Manifold & Throttle Body, Doug Thorley LT's mated to a Magnaflow catback with Magnaflow Spun Metallic Cats, & Powerbond UD Pulley

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