bring on the vapers 
To cat or not to cat..........that is the question
My boys ragged on me about the smell non stop. There is some fuel smell with cats, so don't get all freaked out that it's going green or anything. Ya'll young cats probably do like the fuel smell, but trust me, it gets old fast. Wait, I got old fast.......
11 Second Club
Joined: Dec 2007
Posts: 868
Likes: 0
From: Charleston, SC
You don't have a cam, that changes everything. I was at Mayhem the other day and they started this guys h/c SS and the whole shop smelled like someone sprayed gas on the floor. I don't miss that.
You could get high of my exhaust fumes and I ******* love it.
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TECH Enthusiast
Joined: Aug 2006
Posts: 502
Likes: 1
As for the whole question of whether or not they help low end power.
Yeah, sorta.
Peak power will increase without a cat, but you move the powerband lower in the rpm by increasing backpressure.
Alot of guys don't really understand how to tune a powerband in the first place, so they don't understand this concept too well.
While free-flowing intake and exhaust help increase peak power, they do so while moving the powerband higher in the rpm. Now, you normally still see an increase over the whole rpm range except around off-idle.
This is the whole concept of high-rise/low-rise intakes, shorty/longtube headers, etc. Every part on the engine has to be selected to compliment the other. Example, the original 327ci. I've seen a lot of guys complain that their setup on these engines didn't yield what they thought. When asked, I usually get answers indicating that they used intakes meant for low-end torque, and headers without enough primary diameter, etc. They don't realize that the engine is a high rpm producer, not a stump puller.
....anyway.
Yeah, sorta.
Peak power will increase without a cat, but you move the powerband lower in the rpm by increasing backpressure.
Alot of guys don't really understand how to tune a powerband in the first place, so they don't understand this concept too well.
While free-flowing intake and exhaust help increase peak power, they do so while moving the powerband higher in the rpm. Now, you normally still see an increase over the whole rpm range except around off-idle.
This is the whole concept of high-rise/low-rise intakes, shorty/longtube headers, etc. Every part on the engine has to be selected to compliment the other. Example, the original 327ci. I've seen a lot of guys complain that their setup on these engines didn't yield what they thought. When asked, I usually get answers indicating that they used intakes meant for low-end torque, and headers without enough primary diameter, etc. They don't realize that the engine is a high rpm producer, not a stump puller.
....anyway.