Street Headers
Thread Starter
Pro
Joined: Jun 2011
Posts: 681
Likes: 14
From: Beverly Hills Michigan
St. Jude Donor '12-'13
Street Headers
I thinks it's the year for headers on my 05. I already have Corsa exhaust. I looking for recommendations on fit and performance. What's your experience been?
Instructor
Joined: Dec 2016
Posts: 209
Likes: 42
From: Chestertown Maryland
Not sure if you are aware but on most any of the headers for these cars you have to use the header manufacturers crossover pipe also. Keeping cats on the car will help with exhaust smell which will be a little more with headers.
I have also seen the Kooks headers installed and they fit well. My tuner warned me against some of the cheap headers as they some times don't fit as well and hang down which will hit speed bumps.
Melting Slicks
Joined: Jun 2006
Posts: 2,497
Likes: 261
From: Miami Florida
Kooks I had ARH and they leaked all four both sides had to cut the collector to finish their job but worth yet have to remove starter and right knock sensor to get them in or out the Kooks if you loose your handle will fall to the floor no joke. Oh by the way 1 7/8 and 3 inch X
Retired & lovin' it!
Joined: Mar 2005
Posts: 4,475
Likes: 549
From: Jackson NJ
Like Fly N Low, I'm also running AR Headers with their X-pipe, hi-flo cats & Corsa mufflers. Fit was perfect, the setup sounds great & after a tune by ECS here in Jersey, picked up 20-25 hp. The system has been on for about 8 years now with no problems at all.....highly recommended.
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,727
From: Atlanta GA
I ran LG's with High Flow cats ( u will regret it if u don't run cats , not worth the 5 HP ) on my c6 , fit perfect , no leaks , no scrapping , did not have to remove the starter .....strictly a bolt in easy installation
Dave
Dave
Melting Slicks
Joined: Jul 2010
Posts: 3,001
Likes: 243
From: Surprise, Az
Jimmy, lots if header threads for comparisons on the forum. There is even a direct comparison test performed by one of the vendors comparing ARH, Kooks, and Pfadt, not sure if LG was included. It is suggested to use 1-3/4" if naturally aspirated, they will give you more torque in the lower RPM band where we do most of our driving, conversely, 1-7/8 will give a little more HP in the upper RPM's where we don't drive that often.
Either way, high flow cats for street use. I can smell non-catted cars several cars ahead of me on the freeway, IMHO not worth deleting them.
Either way, high flow cats for street use. I can smell non-catted cars several cars ahead of me on the freeway, IMHO not worth deleting them.
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Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,727
From: Atlanta GA
bad advice , unless you like smelling like gas ...
I had high flow green cats and my car still has a smell when the cats were cold ....
not worth the 5 hp .....
Dave
Pro
Joined: Nov 2016
Posts: 577
Likes: 93
From: North Alabama
Myth. Only time I notice a smell is if mine is running backed into the garage and I'm in the garage. Never smells inside the car. I don't understand all of the complaints about smell. Hell my wife don't even complain about it.
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,727
From: Atlanta GA
because yours does not do it it must not smell ......
and that is why literally 100's of folks say it does ....but they are all wrong ....
Dave
Pro
Joined: Nov 2016
Posts: 577
Likes: 93
From: North Alabama
It is an urban legend that 100% of folks say their cars with no cats have a so terrible smell that it's not worth it. That's a fact.
Last edited by ONEBADZ; May 7, 2018 at 01:39 PM.
Instructor
Joined: Dec 2016
Posts: 209
Likes: 42
From: Chestertown Maryland
Just my 2 cents
Melting Slicks
Joined: Jul 2010
Posts: 3,001
Likes: 243
From: Surprise, Az
Think of the cats/no cats argument from a little different perspective - that of the cars behind you while driving in town or down the freeway. I can smell a little Toyota Hi-Lux pickup three cars ahead of me and its a 4 cylinder (as example), or a newer lexus someone has modified the exhaust on. Personally I don't want to breathe someone else's unburned hydrocarbons. The cats do a great job of cleaning up the exhaust with a minimal performance hit.
Pro
Joined: Nov 2016
Posts: 577
Likes: 93
From: North Alabama
Think of the cats/no cats argument from a little different perspective - that of the cars behind you while driving in town or down the freeway. I can smell a little Toyota Hi-Lux pickup three cars ahead of me and its a 4 cylinder (as example), or a newer lexus someone has modified the exhaust on. Personally I don't want to breathe someone else's unburned hydrocarbons. The cats do a great job of cleaning up the exhaust with a minimal performance hit.
