Header tube diameter
Thread Starter
Le Mans Master
Joined: Jul 1999
Posts: 5,005
Likes: 38
From: jackson nj
Header tube diameter
What size header tube would be good on an LS3 car? All my previous cars were stock cube LS1's and they all had 1 3/4" tubes. The addition of headers would be the last mod done, and the car currently only has a AirAid CAI, PATC torque converter (no runs yet with the converter) & Pat G tune, so it is a very mild car.
Burning Brakes
Joined: Mar 2012
Posts: 836
Likes: 43
From: Killeen Texas
What size header tube would be good on an LS3 car? All my previous cars were stock cube LS1's and they all had 1 3/4" tubes. The addition of headers would be the last mod done, and the car currently only has a AirAid CAI, PATC torque converter (no runs yet with the converter) & Pat G tune, so it is a very mild car.
Last edited by dmoneychris; Feb 12, 2015 at 01:11 PM.
Thread Starter
Le Mans Master
Joined: Jul 1999
Posts: 5,005
Likes: 38
From: jackson nj
I went w/Kooks 1 7/8" Longtubes on my '08. ( http://marylandspeed.com/kooks-1-78-...-ex-p-745.html ) I ordered from Marylandspeed w/the option to get them ceramic coated before they shipped them to me. Shipping was free & the coating was free when I entered the coupon code ('freecoatkooks') The coating I picked was called 'Airborn 1700 deg Silver Jet Coat'
Former Vendor
Joined: Dec 2011
Posts: 1,475
Likes: 29
From: Salt Lake City Utah
It all depends on your future plans. We generally stick to 1-3/4" headers if staying under 450 RWHP but anything over that and we'll go with 1-7/8" primaries on the LS3. Sounds like you're sticking with bolt ons, so I'd go 1-3/4".
Feel free to call, PM or email me anytime with questions or pricing. We have a great deal going on them currently!
Best regards,
Tyler
888-308-6007
Feel free to call, PM or email me anytime with questions or pricing. We have a great deal going on them currently!
Best regards,
Tyler
888-308-6007
Burning Brakes
Joined: Mar 2012
Posts: 836
Likes: 43
From: Killeen Texas
On my '08, before the mods & tune, the car was entirely stock & made 375 rwhp/376 lbft. The mods added were; Halltech MF103 CAI, Kooks 1 7/8" Headers, Kooks Catted X-pipe & Corsa Xtreme exhaust. That brought it up to the 412 rwhp/402 lbft. I went w/the 1 7/8" because "the future's uncertain"...I liked the idea of the bigger tubes, you know, (just in case). It seemed like I didn't loose out on TQ anywhere by getting 1 7/8", so I don't think you're leaving much, (if any) torque on the table by getting 1 7/8" instead of 1 3/4" headers. The LS3 can breathe.
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Last edited by dmoneychris; Feb 12, 2015 at 10:24 PM.
