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Discussion Starter · #1 ·
Hi,

I am new to proformance cars, but from what I have read and learned, why do people unbolt the exhaust before they race?? We are not turbo so don't we need some back pressure? Are they hurting their time, and only think they are faster cause of the sound?

Thanks
 

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FITGT said:
Hi,

I am new to proformance cars, but from what I have read and learned, why do people unbolt the exhaust before they race?? We are not turbo so don't we need some back pressure? Are they hurting their time, and only think they are faster cause of the sound?

Thanks
back pressure isn't always necessarily good. the more flow the better, to a certain extent.
 

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and in the celly's case, not having that axle back part gives you about 5whp extra when you hit the track but makes you hella loud.
 

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Discussion Starter · #4 ·
thanks for the info
 

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Yea i was about to say its the straight exhaust for the celica!
 
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