Straight Pipes

[Citka]

Hi Everyone,

I've searched, but cannot find any references to someone running straight pipes out of the headers. I dropped my exhaust two nights ago for some work and fired the car with just the headers on for a few seconds....it was glorious.

Is anyone running straight pipes from the header collectors back?

 

[nikey22]

Is anyone running straight pipes from the header collectors back?

The revs are so fast and yes, glorious is a good word for this; can't tell difference b/w Ducati reving and this car reving...

View attachment 125113

 

[Citka]

I'm running straight pipes out of one of my Ducatis that stop about 18"after each head. While it's boarding on obnoxiously loud, the noise that came out of the NSX was much deeper and raspier. I'm sure that it would be toned down a bit with another couple of feet worth of pipe past the header collector, but it was nice. Other than reduced back-pressure (lower torque), I'm curious if there is a drawback to running straight pipes on a 91.

 

[kboose07]

I'm running straight pipes after cats sounds great on stock manifold. Actually gonna sell them this winter if anyone's interested I'll post a video.

 

[OkinawaFD3S]

I ran it with out a cat or exhaust for a few minutes when swapping them out. It sounded .... heavenly.

 

[Mac Attack]

It sounds great until you hit about 2500 RPM under a load. Then it is typical Honda wet fart noise.

I've tried about 20 custom exhaust configurations on my NSX.... Obviously straight pipes were the first design, then through cats, then 3" bullet mufflers, then to a single 3" pipe, then custom resonators in combo with the typical aftermarket Borla, Magnaflow, Flowmaster mufflers, then a combo of loud/quiet mufflers with an electric valve directing exhaust flow, then my own custom muffler designs, then started over again with turbos....

 

[Burny-B]

Hi Everyone,

I've searched, but cannot find any references to someone running straight pipes out of the headers. I dropped my exhaust two nights ago for some work and fired the car with just the headers on for a few seconds....it was glorious.

Is anyone running straight pipes from the header collectors back?

CC headers / STMPO Messiah exhaust. No cats/mufflers.
Highest blip is 6K rpm.
Link