Thread: Welded exhasut & still slow

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  1. #1 Welded exhasut & still slow 
    GrandPrix Junkie SDGTP99's Avatar
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    Ok so I've had my exhaust welded at the header collector few times. Dad tack welded it on. That didn't work out so well. Had it welded by a local performance shop. That guy missed the seam & the top of the collector completely. Had it welded by a professional welder. He welded the seams all the way around & it held up for several days. Now the light is on again & the car is running slow & I can hear the leak. Question is should I ask the welder to go over it again since he said he would if I had problems or should I maybe go back top stock exhaust/ headers? I have PaceSetters all the way back.
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  2. #2 Re: Welded exhasut & still slow 
    PittState Automotive Tech GAFF's Avatar
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    get different headers
    SOLD 1999 GT Silvermist TS
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  3. #3 Re: Welded exhasut & still slow 
    GrandPrix Junkie SDGTP99's Avatar
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    Thats what I'm thinking.
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  4. #4 Re: Welded exhasut & still slow 
    Donating Users Lawngoose's Avatar
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    I have pacesetters, and they can be sealed. I assume your problem is at the Y-Pipe... right?
    02 GTP 13.6 @ 100mph - SOLD
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  5. #5 Re: Welded exhasut & still slow 
    GrandPrix Junkie SDGTP99's Avatar
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    Yes the Y-pipe. I'll try welding again b4 buying new headers. Headers aren't exactly cheap.

    -lol I spelled exhaust very wrong...ftl
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  6. #6 Re: Welded exhasut & still slow 
    PittState Automotive Tech GAFF's Avatar
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    205 for me when i got my SD headers
    SOLD 1999 GT Silvermist TS
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  7. #7 Re: Welded exhasut & still slow 
    GrandPrix Junkie SDGTP99's Avatar
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    That price is reasonable. But for me bills come first. Headers would have to wait.
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  8. #8 Re: Welded exhasut & still slow 
    Donating Users Lawngoose's Avatar
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    Have you seen Bluegtp's post about the welding? (I can't find it) I did this and don't have a single problem. Cheap headers are exactly that... you get what you pay for.
    02 GTP 13.6 @ 100mph - SOLD
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  9. #9 Re: Welded exhasut & still slow 
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    Is it possible your flex is leaking or your three bolt flange is leaking?
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  10. #10 Re: Welded exhasut & still slow 
    PittState Automotive Tech GAFF's Avatar
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    YOu could pull the pace****ters and sell them for 100 or 150 and get the sd's
    SOLD 1999 GT Silvermist TS
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  11. #11 Re: Welded exhasut & still slow 
    GrandPrix Junkie SDGTP99's Avatar
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    Quote Originally Posted by matt5112 View Post
    Is it possible your flex is leaking or your three bolt flange is leaking?
    I nvr would have thought about that. Thanks I'll check it out.

    Quote Originally Posted by Gafford44 View Post
    YOu could pull the pace****ters and sell them for 100 or 150 and get the sd's
    I might end up having to do this.
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  12. #12 Re: Welded exhasut & still slow 
    GT Level Member mezzoni's Avatar
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    i dont think ive seen one person say anything positive about pacesetters... speeddaddy are down to 185 id just get those
    2006 pontiac G6 GT coupe - the daily
    2001 pontiac trans am WS6 - pacesetter headers, slp exhaust, diablo sport tuner, ported throttle body, ported MAF, SLP intake lid, B&M shifter, UMI panhard bar, lowered on koni's
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  13. #13 Re: Welded exhasut & still slow 
    GrandPrix Junkie SDGTP99's Avatar
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    not familiar with that brand. I'll look into it, thx.
    OverKilled, HAI, Ported Throttle body, Ported intake, ZZP DP, Magnaflow, BMR ta's, GMPP STB's, CCS springs, tinted tailights, roof rails, TEP cool'r, G8 hood. Glass Gearbox.
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  14. #14 Re: Welded exhasut & still slow 
    Donating Users Lawngoose's Avatar
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    You guys are acting like the SD headers are from the heavens. Me and another member on here (Vailskier) put some on his 07 gp.... and guess what? They required welding too.
    .
    What I like about my pacesetters? They are coated, welded, and don't leak. Cheap headers are exactly that... cheap.
    02 GTP 13.6 @ 100mph - SOLD
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  15. #15 Re: Welded exhasut & still slow 
    PittState Automotive Tech GAFF's Avatar
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    Quote Originally Posted by SDGTP99 View Post
    not familiar with that brand. I'll look into it, thx.
    SD is speed daddy mayne.. lol


    And my SD's dont need welded and plenty of others didnt need theirs welded
    SOLD 1999 GT Silvermist TS
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  16. #16 Re: Welded exhasut & still slow 
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    Quote Originally Posted by Gafford44 View Post
    SD is speed daddy mayne.. lol


    And my SD's dont need welded and plenty of others didnt need theirs welded
    Then you must have a run of the 'perfect' ones. Slip fit headers suck... no matter the brand. And band clamps suck as well for headers.... next thing I expect to hear is that rtv solves all exhaust leaks.

    You have made me curious now... im starting a poll about header welding... please vote.
    02 GTP 13.6 @ 100mph - SOLD
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  17. #17 Re: Welded exhasut & still slow 
    GTP Level Member 01gpgt01's Avatar
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    my ssac's dont leak...and they have been on for 2 years. Granted I used Copper RTV. Paceseters are slip fit aswell. I dont see how you can bash ssac's or SD with pacesetters lol. SD's are even a better quality stainless then pacesetters
    2001 GT. A few here and there mods http://www.streetfire.net/video/2001...ynp_208097.htm

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  18. #18 Re: Welded exhasut & still slow 
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    My pacesetters are heavier than SD headers ....that's all I can say since I haven't had any other experience with other brands. However less mil means more fail in the future. I'm not saying you can't have a great pair of slip fit headers ...but the design sucks...and no one is going to invest a quality set to resell for us. Honestly if I knew before hand about the issues with SD and pacesetters.... I would of got some zzp one's. Rarely hear anything bad about the or togs.
    02 GTP 13.6 @ 100mph - SOLD
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  19. #19 Re: Welded exhasut & still slow 
    The Blue One blueguy's Avatar
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    Pacesetter's...my primaries are biggest and they are 200* armor coated.

    And FOR REAL...where the F**K DID MY THREAD GO? That thing was long as hell.
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
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  20. #20 Re: Welded exhasut & still slow 
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    http://www.grandprixforums.net/leak-...ion-16085.html

    Now how in the **** do you get the headers off the car when the downpipe needs maybe 2-3 feet of clearance below the car when its fully welded like you have there.

    Also I had to take the brake booster off, then i didn't have to take the valve cover off.
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