L98 Headers
Thread Starter
Pro
Joined: Jun 2004
Posts: 534
Likes: 0
From: Duncan South Carolina
St. Jude Donor '10
L98 Headers
I was thinking about putting some headers on my 90 L98. I was thinking they would make the car run cooler and give my a little more HP.
Your thoughts out there about:
#1 - Are there any benefits in the performance,
#2 - Should I go with long or short tube,#
#3 - Should I go with painted or ceramic coated
#4 - Just leave it stock
Your thoughts out there about:
#1 - Are there any benefits in the performance,
#2 - Should I go with long or short tube,#
#3 - Should I go with painted or ceramic coated
#4 - Just leave it stock
Race Director
Joined: Oct 2005
Posts: 11,770
Likes: 175
From: Rolla Missouri
2021 C4 of the Year - Unmodified Finalist
St. Jude Donor '10 thru '25
I was thinking about putting some headers on my 90 L98. I was thinking they would make the car run cooler and give my a little more HP.
Your thoughts out there about:
#1 - Are there any benefits in the performance,
#2 - Should I go with long or short tube,#
#3 - Should I go with painted or ceramic coated
#4 - Just leave it stock
Your thoughts out there about:
#1 - Are there any benefits in the performance,
#2 - Should I go with long or short tube,#
#3 - Should I go with painted or ceramic coated
#4 - Just leave it stock
#2 - See answer to #1
#3 - Ceramic is the way to go, but expensive (You get what you pay for though).
#4 - That's a personal choice. Totally up to you
Safety Car
Joined: Dec 2006
Posts: 4,290
Likes: 6
From: St Marys GA
Everything he said x2. If you get long-tubes, you will have to get new cats also, since the stock ones are displaced. A set of Random Technology bullets can be had for about $150 each, I think. Or you can go catless (no endorsement from me...im running RT's).
Melting Slicks
Joined: May 2000
Posts: 2,029
Likes: 63
I agree with the others with one side note: you already have stainless short tubes (like all L98's do) from the factory (and they are useless) so like others said long tubes are the way to go.
jwalker: his car is L98, there is one main cat in the middle (precats are gone after the long tubes). He doesn't have get a new cat at all, the stock one will work but a free flow cat would help with the power aspect. Bullet cats will not fit his system until he plans to do a total separate pipes thing to his car.
jwalker: his car is L98, there is one main cat in the middle (precats are gone after the long tubes). He doesn't have get a new cat at all, the stock one will work but a free flow cat would help with the power aspect. Bullet cats will not fit his system until he plans to do a total separate pipes thing to his car.
Melting Slicks
Joined: Jan 2001
Posts: 2,940
Likes: 5
From: Chesapeake VA
Here is a photo doc of my header install on my 86'. Corvette came with a mini starter starting in 1988, so you can use your factory starter just fine.
http://members.***.net/effergyvette/...r_Install.html
http://members.***.net/effergyvette/...r_Install.html
Instructor
Joined: Jan 2008
Posts: 163
Likes: 1
From: Idianapolis Indiana
#1 - Good long tubes=good torque
#2 - All shorties do is create underhood temp rise
#3 - At least get them thermal painted but ceramic is best
#4 - Lol stock, thats funny. Trade vette for minivan
#2 - All shorties do is create underhood temp rise
#3 - At least get them thermal painted but ceramic is best
#4 - Lol stock, thats funny. Trade vette for minivan
Le Mans Master
Joined: Jun 2006
Posts: 5,642
Likes: 5
From: One day you're a Comet...the next day you're dust... Arkansas
I agree with the others with one side note: you already have stainless short tubes (like all L98's do) from the factory (and they are useless) so like others said long tubes are the way to go.
jwalker: his car is L98, there is one main cat in the middle (precats are gone after the long tubes). He doesn't have get a new cat at all, the stock one will work but a free flow cat would help with the power aspect. Bullet cats will not fit his system until he plans to do a total separate pipes thing to his car.
jwalker: his car is L98, there is one main cat in the middle (precats are gone after the long tubes). He doesn't have get a new cat at all, the stock one will work but a free flow cat would help with the power aspect. Bullet cats will not fit his system until he plans to do a total separate pipes thing to his car.
You can weld on a 3" universal Magnaflow main cat if you want and delete the pre cats. I got mine on eBay for $65. Leaving the main cat will help with resonance as well.
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Burning Brakes
Joined: Aug 2006
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From: Rockland County NY
