~Official~ IS300 Header Thread - Page 3 - Lexus IS Forum
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post #31 of 237 (permalink) Old 06-13-2011, 09:55 PM
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dyno that header!

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post #32 of 237 (permalink) Old 06-14-2011, 01:36 PM
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dyno that header!
no point since I don't have any engine management to adjust the tuning. i'm not going to pay just to see hp differences. my guess is not quite as much hp/torque but better build quality/sound.

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post #33 of 237 (permalink) Old 06-14-2011, 06:27 PM
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butt dyno it is.
I gotta say I'm interested in hearing your opinion of the header once it's installed. Been swaying with the idea of a SAFC for a long time and just never committed. Do you think the 16hp 12tq figure is after a tune?

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post #34 of 237 (permalink) Old 06-14-2011, 11:43 PM
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Seen some ss headers on ebay for $100. Any opinion? I'm just interested in deleting my cats with pipes that won't rust through. If its total crap, I won't do it though.

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post #35 of 237 (permalink) Old 06-15-2011, 11:46 AM Thread Starter
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Quote:
Originally Posted by happysmp View Post

butt dyno it is.
I gotta say I'm interested in hearing your opinion of the header once it's installed. Been swaying with the idea of a SAFC for a long time and just never committed. Do you think the 16hp 12tq figure is after a tune?
Figure maybe with out tune id say ...depends on supporting mods and engine condition...
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Seen some ss headers on ebay for $100. Any opinion? I'm just interested in deleting my cats with pipes that won't rust through. If its total crap, I won't do it though.
Ive ran a ebay header once apoun a time they are all pretty much the same copy of copy, you will have to relocate a 02 bung (cheap) and your good to go other then getting o2 sim (TS FTW)...Id suggest to header wrap and seal the headers as well......

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post #36 of 237 (permalink) Old 06-17-2011, 09:27 AM Thread Starter
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Another good Info Thread*********************
Exhaust Comparison Videos --> stock header vs. silencer vs. aftermarket header

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post #37 of 237 (permalink) Old 06-30-2011, 03:17 PM
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Well I have bad news guys. Looks like I basically paid $100 too much for a header that's already out there.

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damnit!

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post #38 of 237 (permalink) Old 07-01-2011, 05:47 AM
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have you tried contacting Supra Store about the "mix up"?

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post #39 of 237 (permalink) Old 07-01-2011, 02:09 PM
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Yea I did and they are going to work with me to get some money back. They seem like a good company.

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post #40 of 237 (permalink) Old 07-16-2011, 09:44 AM Thread Starter
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Yea I did and they are going to work with me to get some money back. They seem like a good company.
Hope it worked out.....

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post #41 of 237 (permalink) Old 07-22-2011, 10:20 PM
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They ended up giving me money back so no harm done in the end. Still haven't installed the header but at this point I know it's not going to get me any gains. All i'm hoping for is a rattle and leak free header that's a little better than stock.

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post #42 of 237 (permalink) Old 09-11-2011, 06:02 AM Thread Starter
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This is how IS300 headers should look (6-2-1) smooth curves, great directional flow, close to equal length tubing and key part is the 2-1 portion flange...


(supra header)

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post #43 of 237 (permalink) Old 09-14-2011, 11:33 PM
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I has magnaflow headers with the highflowcats still there. It was like $650. -.- But helps with Visual Emissions. Actually love the headers. Ill post a vid. soon

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post #44 of 237 (permalink) Old 09-21-2011, 09:32 AM Thread Starter
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Good info , this prob good option for Cali guys.

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post #45 of 237 (permalink) Old 09-21-2011, 11:55 PM
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Yeah, I've seen the headers he has it all sounds pretty nice too

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  Lexus IS Forum > 1st-Gen IS300 > Go Fast Stuff

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