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Discussion Starter · #1 ·
Got my strup stainless steel header yesterday and put it on today. looks great. doesnt make it much louder but gives my exhust a little crackk to it. and you can feel a pretty good power gain.
 

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Discussion Starter · #4 ·
im gettin an s pipe soon too.
 

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im gettin an s pipe soon too.
I was pleased with the effect of installing a header, but I was skeptical about an aftermarket 'S'-pipe making a worthwhile difference -- especially in light of the cost (WeaponR), but I decided to give it a shot and guess what? Can't say I could tell any difference at all over the OE.

I suggest finding something more impactful to spend your money on.
 

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I've decided not to get a header, plus any modification that is "bolted on" doesn't really give any additional horsepower, not worth the $$$ for single digit numbered HP gains. Of course that is just my personal opinion.
 

· Royal Floor Sweeper
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A header is just part of a system to manipulate the engine to breathe better (it is essentially an gas-powered air pump). What is being balanced is torque and horsepower across a pair of power curves.
What "helps" is how the various components work to shape the torque curve and horsepower curve. It is all in how the elements work together. Some specific components will work wonderful in certain combos and even hurt in other combos.

Everything is in what YOU want. How to achieve that would be nice w/ easy/cheap access to a dyno . . .

A header helps the out-flow of gasses/air from the engine to the exhaust system. A well designed one helps keep the flow smooth and even collection of said gasses for either optimum high-end power and/or mid-range. With an appropriate intake and exhaust system, it makes a huge difference. By itself w/ a stock intake and exhaust it is pointless.
 

· Royal Floor Sweeper
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HAHAHAHAHAHA
Just typing to help by adding into I happen to know in relation to comments made.

More (if one wants to read- then on relevant "blower" info)

The general "rule of thumb" is to mess w/ the intake and exhaust systems in this order:
Intake where filter is
Exhaust muffler
Decide is want to go "all engine" or w/ blower
If all engine:
Header (exhaust manifold)
Intake manifold
Engine internals

If turbo:
Turbo system (affects header AND intake system)
Engine internals
Bigger/higher compression turbo

If Supercharger:
Exhaust manifold
Basic Blower
Engine internals
Pulley changes to increase compression
Bigger blower
More internals and pulley changes

There are 2 types of "blowers," namely a turbocharger and a supercharger. Both use a compressor as part of the intake manifold to shove more air into the engine by compressing and mechanically increasing the volume of incoming air, working w/ the ECU to add more fuel as well to maintain the air/fuel mixture ratio.
The difference between an the 2 types of "blowers" is (in short) is how they spin the compressor:
A supercharger runs by a belt that ties into the engine's pulley/belt system that spins the compressor.
A turbo has what is basically a windmill in the exhaust manifold that is tied to the compressor in the intake manifold.

A supercharger is theoretically more efficient as it maintains a "clean" flow exhaust. It also spools instantly as it compresses at the same speed as the engine-b/c it runs directly off the main pulley that turns with the engine crank.
A turbo has a theoretically higher power potential, as it isn't limited to a belt and pulley to the spool up of the compressor. A turbo has a delay in its spool up, as it gets its spinning from the exhaust that has already left the engine. The amount of delay varies widely, due to many factors.
Now, the debate as to which is "better" is hot, heated, and is battled all over the automotive world.

For my own cars, I'd get a supercharger for my Miata and a turbo for my xB (IF I wanted to fork out the money for it). Each system suits that vehicle and my purposes better, besides there being GREAT relative systems readily available.
 

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HAHAHAHAHAHA
Just typing to help by adding into I happen to know in relation to comments made.

More (if one wants to read- then on relevant "blower" info)

The general "rule of thumb" is to mess w/ the intake and exhaust systems in this order:
Intake where filter is
Exhaust muffler
Decide is want to go "all engine" or w/ blower
If all engine:
Header (exhaust manifold)
Intake manifold
Engine internals

If turbo:
Turbo system (affects header AND intake system)
Engine internals
Bigger/higher compression turbo

If Supercharger:
Exhaust manifold
Basic Blower
Engine internals
Pulley changes to increase compression
Bigger blower
More internals and pulley changes

There are 2 types of "blowers," namely a turbocharger and a supercharger. Both use a compressor as part of the intake manifold to shove more air into the engine by compressing and mechanically increasing the volume of incoming air, working w/ the ECU to add more fuel as well to maintain the air/fuel mixture ratio.
The difference between an the 2 types of "blowers" is (in short) is how they spin the compressor:
A supercharger runs by a belt that ties into the engine's pulley/belt system that spins the compressor.
A turbo has what is basically a windmill in the exhaust manifold that is tied to the compressor in the intake manifold.

A supercharger is theoretically more efficient as it maintains a "clean" flow exhaust. It also spools instantly as it compresses at the same speed as the engine-b/c it runs directly off the main pulley that turns with the engine crank.
A turbo has a theoretically higher power potential, as it isn't limited to a belt and pulley to the spool up of the compressor. A turbo has a delay in its spool up, as it gets its spinning from the exhaust that has already left the engine. The amount of delay varies widely, due to many factors.
Now, the debate as to which is "better" is hot, heated, and is battled all over the automotive world.

For my own cars, I'd get a supercharger for my Miata and a turbo for my xB (IF I wanted to fork out the money for it). Each system suits that vehicle and my purposes better, besides there being GREAT relative systems readily available.
Usefull info. Thanks! Correct me if I'm wrong but aren't us "auto" tranny owners screwed if we wanna add serious hp like a turbo? I owned a 09 VW GTi b4 this xB and I know it's DSG tranny could handle 400hp. What can these Toyota trannys handle?
 

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From what I've read elsewhere, the CVT appears to be OK to 300WHP -- though you would need a transmission fluid cooler if you go turbo.

Also, I understand the OE xB2 intake manifold is capable of supporting considerable power (pretty sure 400 WHP), so don't rush to replace it.
 

· Royal Floor Sweeper
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4,338 Posts
As for supped up power, I'd rely on World/Descendant (Rado's company) for their recommendations on an auto. I know it will work (it's been done), but not sure about the difference compared to a manual in total power on the same set-up or other alterations recommended.
 

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109 Posts
I checked out World/Descendant and WOW $4295 for a turbo upgrade? I hope that includes labor. If not I've seen early 90's Civic Hatchbacks on ebay with 300+hp for the same price.
 

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probably $8k when done uh? Na, i'll keep the xB as a daily and buy that hatchback off ebay that'll smoke 5.0 Mustangs.
 

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Real horsepower cost real money. I like to think my short ram gives me a lot of horsepower but it doesn't.
 

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You can have a lot of fun with "bolt on" N/A mods, but nothing that will turn heads at a track. Turbo is the only way to go for real power. My personal focus is low-to-mid torque, not power. Torque is very useful on the street, power not so much. Still, I guess turbo is more "sexy" :)!
 
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