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I have an 07 and I'm thinking about installing headers, I presently have the npp exhaust, I don't track the car it's mostly for a more aggressive sound so what all do I need and can i hook up to my npp exhaust. Thanks
I just installed a set of ARH 1 7/8" with the high flow cats. I left my stock NPP. The sound with the muffler closed is the same its nice and quiet but opened up its sounds freaking awesome! It gave it the bark that I wanted sounds absolutely Fantastic.
I just got a set of Stainless Works long tubes for my Grand Sport. They fit real nice and I also had them coated so the heat is not so bad. Also had the X pipe they make put on with the headers. Have Corsa sports on the car already..... The sound the car makes now is unholy....... I can't get enough of it....... put a Snow Methanol kit on it also......
Kooks, American Racing or LGM. I wouldn't use any others. Works great with the NPP. 1 3/4" primaries is plenty big enough for a stock engine. Anything larger may lose a little torque down low.
We sell a ton of exhaust systems that would fit your needs at really great prices. Give us a call @443-730-9428 or check out our current sales on our website linked below.
tech at the corvette specialty shop i take my car to would only recommend ARH or kooks as they are high quality and offer the best fit for the car. ordered the kooks 1 3/4" and catted x-pipe from MarylandSpeed, nobody i could find was competitive with their call-in price. they shipped directly to the shop, arrived a few days ago. having them installed next week along with a CAI that's on the way and already have corsa sports. can't wait.
I have a thread I started on my Headers & mufflers- I hope there's something in it that will help. https://www.corvetteforum.com/forums...ufflers-3.html Someone with sensetive ears may say it drones a bit (my wife said that). I installed a complete sound deadening kit & it's a bit better (she said). It's a beast! Full 3" exhaust & Coated 1 7/8 ARH headers really woke it up with the tuning. (The car is a 2013 Grand Sport w/6spd man)
Last edited by dmoneychris; Mar 31, 2017 at 07:46 PM.
I just got Kooks LT 1 7/8 installed with off road pipes directly to the stock NPP. I shop around all over the internet and got the absolutely best price from Maryland Speed. It took a few weeks to get them but I knew that when I order them. The fit was great, they came with everything you need for the install including gaskets, bolts, clamps and O2 extensions. No fitment issues and they bolted to the NPP. You have to make sure that you order the correct fitment X pipes of 3" to 2.5". The sound is pretty awesome and loud with the NPP open. You'll be getting a lot of public attention and turning heads everywhere. Great power and performance. Now if you are investing in headers and X pipes, I recommend going a little further and get a quality CAI. You can find them here new or slightly used for half price, get a 160 thermostat and a good street or dyno tuning. I you are on a tight budget you can get a mail order tune from ECS for $149. The big expense is the headers/X pipes, the rest is a few hundred dollars but the gains are really awesome and will compliment the headers greatly. You'll be so much happier than doing just the headers. Good luck with the project.
. When I had my 2008 Vette, MarylandSpeed gave me an awesome deal on Coated Kooks. I would recommend dealing with them anytime.
The coating is thick enough to trap some extra heat in the exhaust. It cut down on the heat on the right leg from what I could tell.
Last edited by dmoneychris; Apr 1, 2017 at 09:30 PM.
You are welcome! But it is the truth, you do offer the absolutely best prices on quality parts. I did shop online for a while and you beat everyone else. I would only suggest to make sure that the customer knows the shipping time when they place an order, I know that shipping times depends on the specific item and on the specific discount. I knew, understood and accepted a little longer wait to get the special discount. I can see people getting frustrated if they didn't expect the extra shipping time.
I do appreciate you passing down the discounts to us and I'm happy to share my positive experience with Maryland Speed.
I have an 07 and I'm thinking about installing headers, I presently have the npp exhaust, I don't track the car it's mostly for a more aggressive sound so what all do I need and can i hook up to my npp exhaust. Thanks
How much do you want to spend, and do you want to do the work yourself?
An OBX header kit with High flow cats, some better bolts, and a quick trip down to the muffler shop to have the X section welded up once fitted correctly (instead of just it clamped together and chancing a leak, will run you less than $1K, including the needed Pre-O2 extension sensor cables.
Note, with header and the post 02 sensors so far back away from the heads , they are not used and just tuned out of play with the tune.
Also, keep in mind that once you have installed the header system, you will have to get the car re-tuned, since the headers scavenge a lot better than the stock manifolds in play (why you gain power with headers).
So that about another $500 on top to have the car re-tuned.
And yes, you want to run high flow cats, since they will only rob you of a total of about 3hp total, but keep the car cabin from stinking of un-burnt fuel at every stop light instead.
One last thing, and with headers in play on the car (even if coated), your still increasing the heat at the starter solenoid area, and the starter solenoid has to be heat shielded, or your going to heat crack off one of the terminals.
How much do you want to spend, and do you want to do the work yourself?
An OBX header kit with High flow cats, some better bolts, and a quick trip down to the muffler shop to have the X section welded up once fitted correctly (instead of just it clamped together and chancing a leak, will run you less than $1K, including the needed Pre-O2 extension sensor cables.
Note, with header and the post 02 sensors so far back away from the heads , they are not used and just tuned out of play with the tune.
Also, keep in mind that once you have installed the header system, you will have to get the car re-tuned, since the headers scavenge a lot better than the stock manifolds in play (why you gain power with headers).
So that about another $500 on top to have the car re-tuned.
And yes, you want to run high flow cats, since they will only rob you of a total of about 3hp total, but keep the car cabin from stinking of un-burnt fuel at every stop light instead.
Or, another direction would be to pick up a full 3" OE LS7/LS9 system from the manifolds all the way back to the mufflers. Probably fairly inexpensive and will net you some power as well. Just some food for thought.
One last thing, and with headers in play on the car (even if coated), your still increasing the heat at the starter solenoid area, and the starter solenoid has to be heat shielded, or your going to heat crack off one of the terminals.
All good points to consider.
OP, if it's just for sound, why not a good axle back system? Maybe even pick up a gently used system in the for sale section.
Or another direction would be to pick up a used full 3" OE LS7/LS9 system from the manifolds back. Would be all stock appearing, but you'd pick up some power as well.
One last thing, and with headers in play on the car (even if coated), your still increasing the heat at the starter solenoid area, and the starter solenoid has to be heat shielded, or your going to heat crack off one of the terminals.
Dano,
Good info ... I have a set of Pfadt headers on my 2011 GS. I have not checked to see if it looks like I am damaging the starter solenoid yet.
Question ... If I do damage the starter solenoid, can this solenoid be purchased separately, or do you have to replace the whole starter assembly ?
Question for Dano, and I am not being a wise guy
Since the OEM Cats are in very close proximity to the starter and assuming they get very hot then why would the headers be any different in heat for that area
NSF
Question for Dano, and I am not being a wise guy
Since the OEM Cats are in very close proximity to the starter and assuming they get very hot then why would the headers be any different in heat for that area
NSF
When I did my headers a few months back I thought the same exact thing.
Question for Dano, and I am not being a wise guy
Since the OEM Cats are in very close proximity to the starter and assuming they get very hot then why would the headers be any different in heat for that area
NSF
OEM cats have head shields and prevent this from happening to the bakelite end of the starter solenoid longer term instead.
Headers
https://www.corvetteforum.com/forums...ufflers-3.html Someone with sensetive ears may say it drones a bit (my wife said that). I installed a complete sound deadening kit & it's a bit better (she said). It's a beast! Full 3" exhaust & Coated 1 7/8 ARH headers really woke it up with the tuning. (The car is a 2013 Grand Sport w/6spd man)
When I had my 2008 Vette, MarylandSpeed gave me an awesome deal on Coated Kooks. I would recommend dealing with them anytime. 
