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Information on the naturally-aspirated KA24E and KA24DE engines.
GELLIS2586
Posts: 332
Joined: Wed Feb 12, 2003 7:02 pm
Car: 2006 IS350 / previously 1997 240sx se pearl white

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Has anyone elses car sounded like crap afer installing the H.S. header. At idle its louder and then when i drive just normal it sounds like a damn fart can. Im just gonna sell the header and put the stock exhaust manifold back on. What do yall think.


Structure240sx
Posts: 5615
Joined: Sun Oct 06, 2002 5:04 pm

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make sure ur gaskets are good. mine sounded like a roar nothin like my friends lawnmower swaped civic

GELLIS2586
Posts: 332
Joined: Wed Feb 12, 2003 7:02 pm
Car: 2006 IS350 / previously 1997 240sx se pearl white

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Mine sounds like a damn weedwacker and all the gaskets are brand new atleast exhaust gaskets.

RedShred
Posts: 158
Joined: Wed Mar 05, 2003 1:46 pm
Car: 86 AE86

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Mine sounds great... alittle more choppier and alittle louder, but it sounds fine. What are you using for the rest of the exhaust ? Are you sure you just dont hate the header because of the money-loss and frustration that it has brought? If it brings power, then wouldnt it just be better to find a different way to change teh sound ?

You shouldnt have a hard time selling it though... You have a DOHC right? HOTSHOT is on a 2 month backorder from what I hear.

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I am Technoman
Posts: 979
Joined: Fri Nov 22, 2002 6:49 am
Car: ???

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when you change to a header you need to change your muffler. Use a big muffler.

GELLIS2586
Posts: 332
Joined: Wed Feb 12, 2003 7:02 pm
Car: 2006 IS350 / previously 1997 240sx se pearl white

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I got a magnaflow right now maybe thats causing it. It would be a pain to put the stock stuff back on. What kind of muffler should I get. I don't like huge coffee can size tips. Preferably dual tips.

RedShred
Posts: 158
Joined: Wed Mar 05, 2003 1:46 pm
Car: 86 AE86

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Get a flowmaster in a Delta series... something in a 50 or 60. Still a decent sound without the buzz.

The rasp doesnt bother me... but I dont drive mine everyday.

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I am Technoman
Posts: 979
Joined: Fri Nov 22, 2002 6:49 am
Car: ???

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I use a Borla from the "boomer series". Its called the "blow torch". I cant even here my car idle and I dont use a cat.

GELLIS2586
Posts: 332
Joined: Wed Feb 12, 2003 7:02 pm
Car: 2006 IS350 / previously 1997 240sx se pearl white

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I want a dual tip or dual canister muffler do you know of any that sound good with the header. I have magnaflow right now and it sucks with the header before it sounded greatI still dont know what to do.

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sixxdeuce
Posts: 972
Joined: Wed Aug 07, 2002 5:22 pm
Car: 93 rx7, G35coupe 6mt
Contact:

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just like redshred said, a 50's or 60's series flowmaster and then just pick whatever tip you want, but get it in stainless. If you want a 3 inch muffler your going to need a 50 series, i think 2.5 is the biggest in 60 series but that good for a na motor


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