Hi flow Exhaust manifold
#1
New Member
Thread Starter
Hi flow Exhaust manifold
So I'm looking at getting a high flow manifold for my 04 RX8, I've seen this hiflow from npboosted but I'm unfamiliar with the brand but it's only about $100, my other option is the magflow for around $1300, not sure if I should try the cheaper one or go big and get the magflow
#3
never give up
Don't put a 100 bucks worth of who knows what alloy on your car. It will not last.
I'd argue about a good header but I'm in the minority.
Search for the header theory thread, a few good tips in there.
I'd argue about a good header but I'm in the minority.
Search for the header theory thread, a few good tips in there.
Last edited by peloponisios; 02-14-2022 at 02:49 PM.
#4
Project Seca
iTrader: (10)
+1 to what dan said.
Theres effectively a net-zero argument for the manifold (header) on our cars. Even with lots of dyno tests on these manifolds on otherwise stock Rx8's, there is arguably no difference between stock and aftermarket. Even tuned, there wouldnt be much of a measurable difference if any. Most gains are seen as a result of replacing the catalytic converter with a cat-delete/midpipe along with a catback exhaust. And even those dont net for a whole lot of power.
Theres effectively a net-zero argument for the manifold (header) on our cars. Even with lots of dyno tests on these manifolds on otherwise stock Rx8's, there is arguably no difference between stock and aftermarket. Even tuned, there wouldnt be much of a measurable difference if any. Most gains are seen as a result of replacing the catalytic converter with a cat-delete/midpipe along with a catback exhaust. And even those dont net for a whole lot of power.
#5
Administrator
iTrader: (7)
but.... my Racing Beat header makes cool noises
and more noise = more power, right???
all kidding aside: I would not put a $100 manifold on your car. This is literally one of those 'you get what you pay for' moments and you don't want to be on the wrong side of it.
and more noise = more power, right???
all kidding aside: I would not put a $100 manifold on your car. This is literally one of those 'you get what you pay for' moments and you don't want to be on the wrong side of it.
The following users liked this post:
Ricky SE3P (02-14-2022)
#7
New Member
Thread Starter
#8
Modulated Moderator
iTrader: (3)
I would buy a used OEM manifold and end up with something functional.
Likelyhood a cheap tubular manifold is going to have sealing issues both at the engine and midpipe end. It's also going to be loud and warp from the heat. The stock cast manifold is very durable... thin wall tubing isn't great on a rotary
The following users liked this post:
Fickert (02-17-2022)
Thread
Thread Starter
Forum
Replies
Last Post
WBRxGreat
Series I Aftermarket Performance Modifications
4
01-29-2008 10:57 PM