Thread: exhaust help

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  1. #1 exhaust help 
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    i want my grand prix to be the grandest pricks around! lol i want it to sound good and i want the performance as well.
    i went to my local muffler shop and i had some magna flow muflers put in because ive read flowmaster sounds like poo..

    they sound nice on start up, but while driving they are very calm and the supercharger drowns them out if you give it some gas.( i have an intake)
    so now they had asked me if i want more rumble to come back and they will put in a pipe where the resonator is.. i hear that is rediculously loud and the drone is crazy..

    im thinking of waiting buying maybe some slp headers a zzp dp with the cat on it because i live in cali.. and then thats where i get lost witht he exhaust idea in my head... does it go straight back to the mufflers from there? i dont want the U bend in there so how can i get it done. i think i will wait untill i get the headers and DP but after that how do i get this done to complete it?
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  2. #2 Re: exhaust help 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    You want a glasspack where the resonator is, not a "pipe"

    The downpipe from the headers will connect to the catback...
    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: exhaust help 
    GXP Level Member sLpGPGT's Avatar
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    yea stay away from magnaflow and flowmasters, SLP are pretty nice and borla as well (i have the slp and i love them) exhaust systems are a waste tho cause they really dont add to much so stick to mufflers and throw on some tips, and u mine as well go with headers, if u want loud u could do straight pipes with a res delete, will sound a bit raspy but i personally like it, for headers most ppl do SSAC cause there cheap and get the job done, but if money is not a issue slp headers are pretty nice
    07 Daytona R/T, 43/1500, Borla Exhaust
    AEM bruteforce intake
    Diablo 93 Octane tune
    Kooks longtube's w/highflow cats


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  4. #4 Re: exhaust help 
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    ok the word cat back confuses me lol. I feel dumb.. basically if i get the cat on the dp a "catback" is anything past the dp right? straight to a glass pack from the glass pack to the mufflers? i see that the u bend kinda has its own little home routed under the car.. how do they delete that while keeping the same clearance? or will they just lay it over the already molded stock u bend molding?
    thanks and sry guys
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  5. #5 Re: exhaust help 
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    btw slpgp thats a good looking car!
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  6. #6 Re: exhaust help 
    GXP Level Member sLpGPGT's Avatar
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    Quote Originally Posted by legend View Post
    btw slpgp thats a good looking car!
    thank you sir, needs more work tho haha
    07 Daytona R/T, 43/1500, Borla Exhaust
    AEM bruteforce intake
    Diablo 93 Octane tune
    Kooks longtube's w/highflow cats


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  7. #7 Re: exhaust help 
    Perma-Banned! JK LOL Explicit_Spade's Avatar
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    The Engine block has heads. These heads have Headers (or Manifolds). These are connected to each other by a crossover. On a 3800, the "Rear" header has a downpipe. This downpipe will have a flex pipe (looks like mesh) and generally has a catalytic converter ("cat"). After the cat is a flange. Then there is an Exhaust Gasket to another flange. After the second flange is a long pipe leading to the muffler/ mufflers, which are connected to exhaust tips.


    Everything after the gasket from the downpipe to the exhaust tips is a catback.



    Headers:


    Catback:
    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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  8. #8 Re: exhaust help 
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    you sir are a champion! thanks i appriciate it! pictures and everything ok i think i had it right just reading all over people throw around all these terms and it confuses me cause i second guess myself. you are the man!
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  9. #9 Re: exhaust help 
    GTX Level Member blackflag's Avatar
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    Keep the res dont straight pipe. I dont care what anyone says Rasp never ever ever sounds good.
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  10. #10 Re: exhaust help 
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    Quote Originally Posted by BlackFlag View Post
    Keep the res dont straight pipe. I dont care what anyone says Rasp never ever ever sounds good.
    if this was facebook id like this...
    I agree we dont drive civics, the power is there we dont need to have the loudest **** to make everyone think our cars are fast lol
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  11. #11 Re: exhaust help 
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    Supercharger drowning out the exhaust is a plus in my book...
    2001 Pontiac Grand Prix GT : Stock and slow and SOLD.
    2001 Pontiac Grand Prix GTP Special Edition
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  12. #12 Re: exhaust help 
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    wow just relized that there is a like button!!
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  13. #13 Re: exhaust help 
    GTX Level Member blackflag's Avatar
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    I'm sure plenty of guys would have loud exhaust systems if our engines sounded decent. Sadly I've only heard 1 that was "decent" and it was xp cammed, had borla mufflers, and the largest res. you can fit under there
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  14. #14 Re: exhaust help 
    The Blue One blueguy's Avatar
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    Blah, just needs no exhaust and a bigger cam.

    Cold Start-Up Thrasher Cam video by bluegtp03 - Photobucket
    Sold WBody's: '03 Blue GTP/'98 Green GTP/'98 Silver GT/'05 GXP
    '99 Chevrolet Silverado Classic Z71 4x4 - K&N Intake/Gibson Exhaust #TRUCKTHINGS
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  15. #15 Re: exhaust help 
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    Straight pipes back to folgers cans, must be decaf to get the rumble
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  16. #16 Re: exhaust help 
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    Sorry I was thinking about hondas
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