No Muffler?
the smarter thing to do would be to have a cutout placed in the I pipe, so you can be loud when you want to, and quiet when you need to. Should feel a little from the seat o' the pants dyno, should change fuel economy too much either way.
TECH Apprentice
Joined: May 2007
Posts: 381
Likes: 0
From: Montgomery County, MD
I wouldn't just take off my muffler that would dump all the sound under the car and make a noisey cabin all the time a cut out is a good idea though if you want it loud and quiet or you don't have enough money for a cat-back.
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i dont believe so it should be fine i know with my jeep 4.0 i ran no cat and no muffler and it did not make enough back pressure. but your car should be fine no different then the guys that drive around with their cutout open. i know the slp or bullet exhaust is almost like having no muffler and they dont cause any problems so i would bet that you are ok. there is a guy on here that has his z straight piped you could try to find him and talk to him
i have stock manifolds, gutted cats and an SLP loudmouth II with gutted resonator and i ran a 11.86 at 119.7 with spray and drag radials. as for gas mileage... i feel it all depends on how you drive your car. btw... ITS SOUNDS NICE!!!
Originally Posted by crapyboy750
what is the back pressure used for?
