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Old 06-21-2017, 05:37 PM   #1
GreyGti1990
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2.5 or 3 inch cat-back for F23T

I have a feeling your all going to say 2.5 inch is fine with the F23T but I just wanted to check before pulling the trigger.

I don't plan on going big turbo with this car but I do plan on getting around the high 300's whp. Should I go 3 inch or 2.5? I like the beluga exhaust but fear it might be restrictive with the F23T.

Thanks!
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Old 06-21-2017, 05:52 PM   #2
Nineeightgolf
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Originally Posted by GreyGti1990 View Post
I have a feeling your all going to say 2.5 inch is fine with the F23T but I just wanted to check before pulling the trigger.

I don't plan on going big turbo with this car but I do plan on getting around the high 300's whp. Should I go 3 inch or 2.5? I like the beluga exhaust but fear it might be restrictive with the F23T.

Thanks!
If you're spending the money on an upgraded turbo why risk it? Just get the 3"
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Old 06-22-2017, 08:48 AM   #3
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If you're spending the money on an upgraded turbo why risk it? Just get the 3"
the catback will not cause a restriction on a f23.

You only need/want a 3" full exhaust when you are BIG turbo. a k04 is not much bigger than a k03... you will be perfectly fine with a 2.5" catback portion and a 3" downpipe portion.
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just like god intended. he didnt kill off the dinosaurs for their sweet sweet bone juice to have it go getting wasted by eco-obsessed torque thieves.
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Old 06-22-2017, 09:07 AM   #4
GreyGti1990
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the catback will not cause a restriction on a f23.

You only need/want a 3" full exhaust when you are BIG turbo. a k04 is not much bigger than a k03... you will be perfectly fine with a 2.5" catback portion and a 3" downpipe portion.


That's what I thought. I heard 2.5 is fine with k04 and I know the F23T is a modified k04 but just wanted to check. Are you F23?
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Old 06-22-2017, 09:15 AM   #5
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That's what I thought. I heard 2.5 is fine with k04 and I know the F23T is a modified k04 but just wanted to check. Are you F23?
i am not. Im still stock turbo But im sure a few F23T people will chime in once they log on later today.
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just like god intended. he didnt kill off the dinosaurs for their sweet sweet bone juice to have it go getting wasted by eco-obsessed torque thieves.
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Old 06-22-2017, 09:17 AM   #6
GreyGti1990
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i am not. Im still stock turbo But im sure a few F23T people will chime in once they log on later today.
Gotcha. Yea I plan to keep this car on stock internals and it'll probably never see a big turbo. I also just justify spending $700+ for a 3 inch catback that doesn't add any power and it just for noise.
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Old 06-22-2017, 09:47 AM   #7
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yep. I have the beluga racing turbo back. less than $500 shipped on sale.
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Old 06-22-2017, 09:48 AM   #8
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yep. I have the beluga racing turbo back. less than $500 shipped on sale.


Hot damn! Did it take long to get? Ordered right thru their website? If I do order this, it would be nice to install it over 4th of July weekend
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Old 06-22-2017, 10:23 AM   #9
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Hot damn! Did it take long to get? Ordered right thru their website? If I do order this, it would be nice to install it over 4th of July weekend
i ordered from their website. I got mine within a few days of ordering they are located in texas.. but ive heard some people have been running into issues with them being out of stock.. i would email them and ask if they are in stock and then order based on what they say.
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Old 06-22-2017, 11:22 AM   #10
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Originally Posted by GreyGti1990 View Post
I have a feeling your all going to say 2.5 inch is fine with the F23T but I just wanted to check before pulling the trigger.

I don't plan on going big turbo with this car but I do plan on getting around the high 300's whp. Should I go 3 inch or 2.5? I like the beluga exhaust but fear it might be restrictive with the F23T.

Thanks!
Do you already have the f23?
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Old 06-22-2017, 11:40 AM   #11
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Do you already have the f23?
I don't. But eventually I plan on it.
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Old 06-22-2017, 12:02 PM   #12
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I don't. But eventually I plan on it.
Well don't, get a ported and polished k04 and be done...even without the p&p, it's a better choice.
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Old 06-22-2017, 12:53 PM   #13
GreyGti1990
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Well don't, get a ported and polished k04 and be done...even without the p&p, it's a better choice.
I thought you were all about the F23... did it blow up? I hear that the F23's are pretty prone to failing in comparison to the K04 buttttt a k04 will never hit 360/70 whp.
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Old 06-22-2017, 12:57 PM   #14
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I thought you were all about the F23... did it blow up? I hear that the F23's are pretty prone to failing in comparison to the K04 buttttt a k04 will never hit 360/70 whp.
you are also highly unlikely to hit that with the f23t without additional fueling. Will need at least meth and probably more.

a regular k04 tune puts you around 310-330whp. Stratified dude a pro tune on a F23T with basic components like exhaust and intake and it put down 330whp while using a E30 blend..
they made one put down 370whp but that was with methanol injection 2 jets... one 225cc in throttle body and one 125cc in piping for cooling and full bolt ons.
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