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they say 48mm but i'm assuming they used 1.875" piping in 16 gauge or so. That turns out to about .0625 wall thickness, which makes it 1.75" inner. Aka, they're not doing anything ground breaking here, that's a proper size for a big motor. So it should work well. with 1.75 ID and the near 3" exit as long as it's stepped in the right spots :D

and judging from that built motor picking up 8 whp with it i'd say it works well.

For anyone wondering what size tubing all that is inner diameter it's:

1.75" stepped to 1.825" secondaried to 2" and 75mm is about 2.84 inches ID
 
I have purchased the headers and turn down muffler as well, would you post a small video of the muffler sound? Also what's your instagram i would love to follow, maybe you can post it there?
my instagram is ht_sk and shop instagram is HT_performance ill make vid n post it
 
Discussion starter · #24 ·
I have purchased the headers and turn down muffler as well, would you post a small video of the muffler sound? Also what's your instagram i would love to follow, maybe you can post it there?
my instagram is ht_sk and shop instagram is HT_performance ill make vid n post it
I have sent you a request, my instagram is ncktstc
 
I have this header myself. Haven't gotten my engine back together yet, but I figured I'd post so i can come back and update later with dyno results.

My engine is a 2006 tsx 88x99 12.5:1 with K600 cams and supporting valvetrain, rbc with 80mm tb, 3.5" intake, 3" kteller exhaust piping, and turn down muffler. Going to be ran on pump gas
So was this header ran on a TSX or a TSX k24a2 swap? Id really like to use this on a TSX so just curious.
 
Its an 06 k24a2 with 12.5:1 supertech pistons, stock tsx rods, rrc port matched to skunk2 70mm tb, hr swap intake, type s oil pump, 50 degree vtc, 06 stock tsx cams, ktuned big tube header, 3" mandrel bent exhaust, 3" vibrant ultra quiet resonator, 3" magnaflow straight through muffler, modified oem injectors flowing 500cc. All on pump 93
 
Its an 06 k24a2 with 12.5:1 supertech pistons, stock tsx rods, rrc port matched to skunk2 70mm tb, hr swap intake, type s oil pump, 50 degree vtc, 06 stock tsx cams, ktuned big tube header, 3" mandrel bent exhaust, 3" vibrant ultra quiet resonator, 3" magnaflow straight through muffler, modified oem injectors flowing 500cc. All on pump 93
Who tuned it?

How long have you been driving on the header?
 
My buddy Dave, who is on this forum, did the initial street tune. Mike Amerson here in mobile finished it off.

I've had the header on the car for about three months.
Im leaning towards this header as well. How loud is your exhaust setup?
 
I'm going to be using a 3in exhaust with an 18in long, 4in wide resonator and prob my stock ITR muffler or something of the same. Hopefully it isn't too loud.

CHILD, any pics of the vband you welded to the header?
 
For me it was more about performance. .if the exhaust was going to be loud then oh well. That's really the purpose of buying a big tube header is for the performance aspect of it. If you're just gonna choke it out somewhere inthe exhaust then it's really not doing it's job effectively. So loud it is for me lol
 
For me it was more about performance. .if the exhaust was going to be loud then oh well. That's really the purpose of buying a big tube header is for the performance aspect of it. If you're just gonna choke it out somewhere inthe exhaust then it's really not doing it's job effectively. So loud it is for me lol
I understand that. I rather have the potential to make more power by just swapping out the muffler or dropping the exhaust, than not to have it on hand.
 
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