Thread: I'm mounting gauges, wheres the bestplace to run through the firewall?

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  1. #1 I'm mounting gauges, wheres the bestplace to run through the firewall? 
    GTX Level Member Sudden's Avatar
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    I know I've seen this somewhere but I can't find it. I've searched but had no luck. I've mounted a pillar pod with boost and AFR.
    Where's the best place to run these through the firewall.
    TIA
    2005 Grand Prix GTP CompG. Overkill PCM, ZZP S2 I/C, ZZP MPS W/ 3.3" pulley, 1.9 YT rockers, 42.5# injectors, Moroso wires and AL104 plugs, 180 Thermostat, LS4 MAF.
    Front PLOG, Rear PLOG, crossover, all ceramic coated. ZZP 3" Downpipe and 3" exhaust pipes with Borla S-Type mufflers.
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  2. #2 Re: I'm mounting gauges, wheres the bestplace to run through the firewall? 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    There's a grommet on the passenger side that works great. It comes out below the dash.
    Quote Originally Posted by W-Body Store
    Remember, GM engineers didn't take into account your need for speed.
    Daily Driver: 06 Grand Prix GT / 9.4:1 CR / IS3 Heads / Ported Gen V / ZZP Headers / HPT Pro / Pulleys: 4.25, 3.8, 3.5, 3.4, 3.2, 3.0, 2.9, 2.7
    Projects: 86 Monte Carlo SS / 98 Sonoma / 74 Honda CB750
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  3. #3 Re: I'm mounting gauges, wheres the bestplace to run through the firewall? 
    GT Level Member mguzzo's Avatar
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    through the passenger side grommet, or through the steering shaft grommet which exits under the brake booster.
    --
    "Silver Bullet" 98 GTP Coupe: Stock, rust free, and broadsided.
    Old '98 GTP Coupe: VS Cam, 3.0, S2IC, 42.5#, TOGs, N*/LQ4, Corsa. it once ran a 13 flat
    Older '98 GTP Sedan: Pullied, rockered, SSIC, etc. Stock 14.33 @ 96.5 / PB: 13.89 @ 101
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