ok, so i removed my exhaust today from my header for ****s and giggles for some research, here are my findings...

Observation 1. Loud as F#*$
Observation 2. VTEC comes in louder than observation 1
Observation 3. No exhaust = no power
Observation 4. Wait to reinstall exhaust until AFTER the header cools lol

 

Ive got an electronic exhaust cutout........its really loud, but i DO gain power from it......quite a bit too.

 

Do you gain power off the line or do you open it up afterwards to gain power? I had cut outs on my 65 Mustang and it lost all it grunt of the line and picked up the power in the mid to high range.

 

im not sure about pete, but i have decent power on the top end now, the only sucky part about that is that "top end" part starts at about 4k lol

 

man you're nuts

 

when i worked at a shop we started up a civic with no exhust...load and SMELLY as hell, i had to open the bay doors and go outside because all the smoke and the stench from it

 

^^^and the carbon monoxide poisoning......[:'(]

 

Generally, the more the exhaust flows, the lower the velocity, and the lower the velocity, the higher the powerband shifts.

Open headers sacrifice a lot of torque for some high RPM gains. When I took my 85 monte circle track car from street stock to super stock class, I went from shorty exhaust to open headers and noticed a loss of torque with a slight gain in top end pull.

 

haha people are going to be pissed at your open headers

lol have fun with the loud noises though