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Best setup?

This is a discussion on Best setup? within the External Engine forums, part of the LSx Technical Help Section category; Well here is the question, I have slp loudmouth exhaust, and want to get some headers. But I hear that ...

  1. #1
    Senior Member clg82's Avatar
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    Best setup?

    Well here is the question, I have slp loudmouth exhaust, and want to get some headers. But I hear that slp with headers sounds way to raspy! So here is my question I want to get an exhaust that sounds great with headers and this where you guys come in. What exhaust sounds best with headers? What kind of headers? Also keep in mind that I live in California! Damn SMOG, so it has to be able to pass smog. Thanks, Chris
    2000 Arctic White trans am, ws6 hood, ws6 air box, slp lid, slp smooth bellows, slp loudmouth exhaust,shift kit, rebuilt trans, LS6 intake, 3.73 gears, Shaner S3 p/p throttle body, and a tune . SFC. C6 ZO6 rims 18" in back 17" in front. Drilled and slotted rotors.

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    Member '02DirtyBird's Avatar
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    I also have the SLP Loudmouth 1, and asked about the raspyness it has with headers when I had it put on. The guy said it is a little raspy but if u just add a Loudmouth 2 resonator with the headers it would sound good. Although I dont have the resonator or the headers so I dont know for sure.

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    Firebird Encyclopedia 9T8W66's Avatar
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    Loudmouths with headers and cats are not raspy, One thing for you to think about is since you live in Cali. where you'll probably have to run cats you shouldn't have a problem.
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    Senior Member clg82's Avatar
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    Quote Originally Posted by 9T8W66 View Post
    Loudmouths with headers and cats are not raspy, One thing for you to think about is since you live in Cali. where you'll probably have to run cats you shouldn't have a problem.
    Arent there headers known to be lower to the ground as well and easy to scrape?

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    member since may 2000 nhraformula's Avatar
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    the only way you will pass the cali sniffer test is with shorty headers.
    get whichever brand you like best.
    because the headers will have the cats, the loudmouth shouldnt be too bad at all.
    you can always switch it afterwards
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    Senior Member clg82's Avatar
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    Quote Originally Posted by nhraformula View Post
    the only way you will pass the cali sniffer test is with shorty headers.
    get whichever brand you like best.
    because the headers will have the cats, the loudmouth shouldnt be too bad at all.
    you can always switch it afterwards
    So if I get shorty headers I should be ok? i am new to exhaust systems so where exactly do I purchase those shorty headers? And will they be cali legal?

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    Member WS6ICK2K's Avatar
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    Quote Originally Posted by '02DirtyBird View Post
    I also have the SLP Loudmouth 1, and asked about the raspyness it has with headers when I had it put on. The guy said it is a little raspy but if u just add a Loudmouth 2 resonator with the headers it would sound good. Although I dont have the resonator or the headers so I dont know for sure.
    From what I hear if you dont wanna buy a new exhaust since you already have LMs, you can either put a 1 chamber flowmaster or a borla xr1 muffler in place of the LM resonator. The flowmaster is known as a 10 series race muffler and would help the rasp, while still giving exellent flow.

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