Dundon GT4/Spyder Race Header Group Buy
#376
Rennlist Member
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For the NA market the valves close rapidly (under a second) at cold start, the volume you hear for under a minute is timing related to bring the catalysts up to temperature quickly.
Refer to previous DMS header thread for more information.
Refer to previous DMS header thread for more information.
#377
Rennlist Member
#379
Three Wheelin'
#381
Rennlist Member
#382
Three Wheelin'
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^That's is freaking awesome, +40HP and warranty!!
#383
Rennlist Member
#384
#385
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The problem is not the headers...is that the headers don't have any cats. My dealer was specific on this: headers with cats OK, race headers... any engine issue we will have to look at it and let you know...didn't like the sound of that so decided on headers with cats.
#386
Race Director
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Originally Posted by jmartpr
The problem is not the headers...is that the headers don't have any cats. My dealer was specific on this: headers with cats OK, race headers... any engine issue we will have to look at it and let you know...didn't like the sound of that so decided on headers with cats.
#387
Rennlist Member
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No, but DLC can be hazardous to the engines health.
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#390
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You bet! I have known dealers try to connect any mod to the car with a non-related issue...having a good dealer is a must, even if you don't mod the car.