Thanks for that info. When I was looking to get the tips on my cat-back coated black I was told by 1 powder coater that exhaust tips won't get above 200 degrees, and was told by another powder coater that they wouldn't powder coat my tips because if they get above 300 degrees the coating will start to soften. I also called the manufacturer of my cat-back system and asked them what they use to black coat their tips and they also used ceramic coating. I decided it was 2 to 1 in favor of ceramic and went with ceramic black coating on my tips.

 

COMPLETELY Agree! If you're local to ATL, bring it over man and we can take care of that sucker in my garage!

 

When I first measured I measured the literal tips (90-100) but noticed a huge reading inside at the flare in the perforation. While I got the angle cut intercooled tips with the Borla S (NPP) I do not think there is any Cooling advantage to that design.

 

I got my black tips borla attack shipped to the house, and the box was in pretty rough shape but no damage. I'm feeling really lucky!

 

Good on ya brother ...so both Of the boxes that I received, while in a bit worn out, did not have any damage. Their position relative to the other items in the box had to have shifted as it was definitely metal on metal that did the damage, I was not there for either unboxing,

 

Ok gents just got back from muffler shop and it started pouring down rain so I did not get a chance to really put it thru the test. Here is my initial opinion:
From the moment you “cold start” with the Borla Stype (NPP) and hear the sound there is no mistaking this is another level of tone, not just from a volume perspective, although it is louder than OEM NPP by at least 3 orders of magnitude (give me a day and I will have a video up), It’s the robust deep “Burble” at idle that puts a smaller on my face. The tone between 3k-5k on the needle is sublime...truly. It’ s more toward what you’d here from a stang’ , deeper, nastier. No drone I could here inside.
I am 95% happy despite the hassles I have experience. The other 5% is to tweak the tips better, I did not want the Muffler dudes to touch that aspect of these given what I have been thru.
I am attaching a quick shot I took, please do not add insult to injury and overstate the obvious, I need to ask those that have been down this road the best way to do the adjustment so if you have suggestions that worked ...please share.
The powder coat came out great, I changed the color/type at the last minute, from Black “Matte” to “Gloss” to better match the carbon flash trim.
Finally I reached out to Borla CS, who gave me the email of Chris @ Borla to relay my experience to and he has responded with a very sincere “we will take care of whatever costs you are out of pocket” email. I was not looking for any $$ back but he offered. Additionally he said he was having a meeting with QC to figure out how to better protect the tips on shipment.
I hope this helps ......despite hassles ...would do it agin in a heart beat !!

 

Looks great. And yes, you certainly need to align those tips.

Question...... What made you decide to powder coat instead of ceramic? Will powder coat stand up to the 400* temps you saw the other day?

 

For all I know this is ceramic, I knew PC had limits and I voiced my concern. His shop was full of different tips and systems that were PC and they looked fantastic. I got this done “thru” the muffler shop and only because it was my only alternative. Hand this been “planned” it would have been me doing the vendor work and I would have had the chance to talk to the source. His response was “ I have been using them for 8 years and none of his work has ever come back with issues” looking around he had a lot if race type cars there. I checked temps when I got home pretty much the same 380’s on outer tips and the finish looked pristine...time will tell

 

I just did mine on a lift 2019 GS … Xpipe and Billy Boat axel backs less than 3 1/2 hours.

 

Thats really interesting. Seeing as the shop says it does them all the time, has a bunch of hi-po cars, and has been around near a decade, I think you’ll be fine.

Good luck with it.

 

I revisited this above... he told me 6 when were talking on day 1 .... billed me for 4 on the OEM / re-Install and 3 on the install of the Borla

 

Just went out and started her up.....man what a dif !! I will be doing some seat time today ...pumped .
You know, I am on my 3rd C7, got my first one in late 2013, back when they might as well been a Ferrari given their new look and popularity, like the C8 is today....and I cannot remember a MOD that excited me this much and I have done a lot over the years. It is a sizable investment at $2100, but have to tell you ...the baby’s got a “Bark” now.

 

Hey bud!

here is that alignment guide that @ShadowGray19 and I spent a little time on awhile back. Show them this and they’ll be dead straight!




Here is how to adjust exhaust tips. It takes 2 techs to do it correctly:

1. The 2 - 13mm bolts on the center plate between the inner tips need to be loosened along with the 4 rear exhaust hanger bolts behind the mufflers and the 2 over axle clamps (loosen only, do not remove any of the bolts)

2. The first tech then pulls the mufflers closer together while rotating them (Counter Clock Wise for the right and Clock Wise for the left). This will lift outside tips away from the bottom of the valance and straighten all the tips out.

3. Once the exhaust tips are properly aligned, the first tech holds the mufflers in place while the second tech re-tightens the two 13mm center bolts between the inner exhaust tips.

4. One of the techs then re-tightens the 4 rear exhaust hanger bolts and the 2 over axle clamps and the job is done.

Note 1: If after the above steps, the 4 aligned exhaust tips are still too close to the bottom of the plastic valance:

** The first tech can loosen the axle back exhaust connections to the X-Pipe. The second tech pulls the pipes down together and holds in place. This will " rock back" the mufflers and pull the tips up a little.

** The first tech re-tightens the connections to the X-Pipe.

Note 2: As a last resort (should not be necessary):

** If the level pipe tips are still too close to the valance, the final solution is to carefully bend down the rearmost muffler hangers. A tech can do this by sticking a pipe over the hanger for leverage and prying down.

** The tech has to be very careful with this since a little bend will go a long way.

 

Thanks this is awesome ... heading down tomorrow to tweak ....

 

Nice. Keep me posted and if anything odd comes up text me.

the hard part is done!

 

Thanks Brother...while I did not achieve perfection ( seems to me the flaps should be parallel to the ground a little more) , as far as spacing, distance of depth, I am fine with it. While I am sure others are more adept at it, to me, unless you are way back and eye level the detail of the flap position is not a huge deal.
Thanks agin for all of your help !!

 

Final comments
What a sound ...totally pleased with the result despite the challenges with the process.
The challenge I had, that I did not put a lot of thought in initially, was finding a place that will work on late model Vettes ( a lot of places see it as a liability). Additionally a lot of the shops I contacted were not interested because they did not sell the system. So I had very limited choices and wound up at a muffler shop in my small town.
Thanks for all of the comments

 

Thanks Brother...while I did not achieve perfection ( seems to me the flaps should be parallel to the ground a little more) , as far as spacing, distance of depth, I am fine with it. While I am sure others are more adept at it, to me, unless you are way back and eye level the detail of the flap position is not a huge deal.
Thanks agin for all of your help !!

 

Wow that looks GREAT! Congrats man!!!!

On the flaps, you actually do want them canted a little. The reason is because the NPP servos extend down quite a bit on the passenger side and if you run them totally straight, you will likely start digging them into the lower valance a little. I'd call it perfect (so long as they are the same angle).

That exhaust looks specifically great on the orange car. LOVE IT!



(I keep mine angled a little bit too)

 

Thanks.... knowing that about the flaps ....takes what little sting I had ...out of it. Got her home and cleaned up...