JTRATX
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- Nov 30, 2017
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I emailed them to see if the headers will fit on a 17' XL. Waiting for their response.
Did you ever get a response from them?
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I emailed them to see if the headers will fit on a 17' XL. Waiting for their response.
Do you happen to have a video showing how it sounds? Would be great to hear it. Also, what type of kooks headers did you use?We just put some Kooks on one of our DDs, great quality. Sounds real nice when paired with boost!
The truck that was used, is it a 6.2L or 5.3L?Unfortunately there is no video, but they installed the 1-3/4 with catted y pipe.
I would love to get some AHR's, but they weren't much help when I talked to them. Not sure what size I need for my 5.3L. Also, not sure if I will have issues connecting to my Corsa exhaust.I highly recommend ARH. I have them in my 08.
Have you spoken to BlackBear? Generally for a NA motor, 1 3/8 would be perfect. Going with a larger 1 7/8 could cause you to loose some power as it would be to large of a diameter. Unless you have a supercharger that can benefit from the larger piping and help flow.I would love to get some AHR's, but they weren't much help when I talked to them. Not sure what size I need for my 5.3L. Also, not sure if I will have issues connecting to my Corsa exhaust.

Have any problems dropping the trans pan? Looks a little tight.Have you spoken to BlackBear? Generally for a NA motor, 1 3/8 would be perfect. Going with a larger 1 7/8 could cause you to loose some power as it would be to large of a diameter. Unless you have a supercharger that can benefit from the larger piping and help flow.
When I spoke to Justin at BlackBear, I was told that a NA can’t utilized the larger diameter of a 1 7/8 header without the help of a FI. Best to use 1 3/8 long headers for NA as shorties don’t do much for performance gains and use 1 7/8 for FI. This info was last body style Tahoes but I imagine it’s the same for yours.
As far as Fitment, you shouldn’t have any problems. Unlike the stock y pipe that’s solid, the y section on my ARH has clamps so the pipes have some adjustablity to them. It should bolt up no problems.
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We would be happy to help. Send us an email [email protected].I would love to get some AHR's, but they weren't much help when I talked to them. Not sure what size I need for my 5.3L. Also, not sure if I will have issues connecting to my Corsa exhaust.
Have any problems dropping the trans pan? Looks a little tight.
Tuned? How much WHP you can get all this upgrades?I just had my ARH's installed, 1 7/8th no cats, paired with a aFe cold air intake & Corsa catback.
Here is a video of it front a cold start.
Also got her dyno tuned & have been loving the results, just FYI it's loud when you get on it. Pretty normal when just driving normal
Do you know the model number of these headers so I can look at the specs?Have you spoken to BlackBear? Generally for a NA motor, 1 3/8 would be perfect. Going with a larger 1 7/8 could cause you to loose some power as it would be to large of a diameter. Unless you have a supercharger that can benefit from the larger piping and help flow.
When I spoke to Justin at BlackBear, I was told that a NA can’t utilized the larger diameter of a 1 7/8 header without the help of a FI. Best to use 1 3/8 long headers for NA as shorties don’t do much for performance gains and use 1 7/8 for FI. This info was last body style Tahoes but I imagine it’s the same for yours.
As far as Fitment, you shouldn’t have any problems. Unlike the stock y pipe that’s solid, the y section on my ARH has clamps so the pipes have some adjustablity to them. It should bolt up no problems.
View attachment 198924 View attachment 198925 View attachment 198926
Spark plug non fouler...these guys just don't knowHey, what do you know! I'm in California. Lol. No way in hell that I'm going to pay extra money for a Catalytic Converter just to gut it. Good thing is, there's always a way around this to make it pass smog here. Man, this info you provided is very good stuff. Thanks alot for sharing!
Do you know the model number of these headers so I can look at the specs?