Headers + Test pipe with stock exhaust question?! help pls
#1
Headers + Test pipe with stock exhaust question?! help pls
I am a big noob so take it easy on me haha. If i have some aftermarket headers and a test pipe, how will the performance be if i'm still running with the stock exahust. is this bad? would you suggest buying a new catback or something similar? Any help would be great! thank you! BTW i have a 4cyl. 2000 accord if that matters.
#4
Honda-Tech Member
Re: Headers + Test pipe with stock exhaust question?! help pls
but after that, where's the bottle neck? what's more restrictive, the cat or the piping? unless flow across the cat is more restrictive than the pipe afterwards then the test pipe is worthless. just playing devil's advocate..
#5
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Re: Headers + Test pipe with stock exhaust question?! help pls
i think it's fair to assume the stock manifold is a major restriction and it's upstream from everything else so a good header isn't a bad idea.
but after that, where's the bottle neck? what's more restrictive, the cat or the piping? unless flow across the cat is more restrictive than the pipe afterwards then the test pipe is worthless. just playing devil's advocate..
but after that, where's the bottle neck? what's more restrictive, the cat or the piping? unless flow across the cat is more restrictive than the pipe afterwards then the test pipe is worthless. just playing devil's advocate..
What becomes the bottle neck at that point? I guess that was more of my point. If you're going to go through the trouble of freeing it up in the front of the car why would you slow it back down right below your feet?
#6
Honda-Tech Member
Re: Headers + Test pipe with stock exhaust question?! help pls
If you're upgrading the stock manifold and removing the cat, which yes are probably the two most restrictive bits on the car. You'll have most likely a 2.25" or 2.5" collector on the end of the header (the most common I've seen are these),then go into a testpipe (we'll assume of same size) and then into stock diameter piping which is right under 2".
What becomes the bottle neck at that point? I guess that was more of my point. If you're going to go through the trouble of freeing it up in the front of the car why would you slow it back down right below your feet?
What becomes the bottle neck at that point? I guess that was more of my point. If you're going to go through the trouble of freeing it up in the front of the car why would you slow it back down right below your feet?
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