https://www.corvetteforum.com/forums/ General Z06 Corvette Discussion, LT4 Corvette Technical Info, Performance Upgrades, Suspension Setup for Street or Track en Thu, 21 May 2026 09:53:59 GMT vBulletin 60 https://www.corvetteforum.com/forums/images/misc/rss.jpg https://www.corvetteforum.com/forums/ https://www.corvetteforum.com/forums/c7-z06-discussion/4992551-exhaust-mufflers-advice-new-post.html Wed, 20 May 2026 01:28:08 GMT I currently have the borla atak 2 dual mode mufflers (aka with valves). They sound good at WOT and at idle but when cruising when engine has some load at low rpm there is a very deep droning noise,... I currently have the borla atak 2 dual mode mufflers (aka with valves). They sound good at WOT and at idle but when cruising when engine has some load at low rpm there is a very deep droning noise, even with valves closed. I think this is because these mufflers were tuned for the sound of vettes that still retain a mostly stock exhaust system upstream.

For reference, my setup currently is:
2" long tubes, an xpipe, and no cats, and car makes some very good power from other mods. All the AFM stuff has been deleted too, which probably was not taken in consideration when Borla designed these mufflers.

So with these parameters being considered, does anyone have suggestion for mufflers that will get rid of the 1500-2000 rpm drone (basically 7th gear in the manual cruising at 70mph)? Should i just swap back to stock NPP mufflers (i don't even remember if these were good at cutting out that low end drone anyway)... ]]> C7 Z06 Discussion ir0nman11 https://www.corvetteforum.com/forums/c7-z06-discussion/4992551-exhaust-mufflers-advice.html https://www.corvetteforum.com/forums/c7-z06-discussion/4992364-tires-new-post.html Tue, 19 May 2026 01:00:16 GMT Hi there. Looking for some advice on a good tire. Sport cup 2 aren't lasting me long enough and I'm not really all that hard on them. For spending over 4k (cdn) I'm looking for a alternative tire that will last.

Thank you in advance.

Kent ]]> C7 Z06 Discussion Kent Rankin https://www.corvetteforum.com/forums/c7-z06-discussion/4992364-tires.html https://www.corvetteforum.com/forums/c7-z06-discussion/4992282-just-hit-40k-new-post.html Mon, 18 May 2026 16:03:38 GMT My 15 hit 40k yesterday. Do you guys think based on the year and mileage that I should change the spark plugs? The manual says 60k but the car is over ten years old now. Thanks men My 15 hit 40k yesterday. Do you guys think based on the year and mileage that I should change the spark plugs? The manual says 60k but the car is over ten years old now. Thanks men ]]> C7 Z06 Discussion LSX228R https://www.corvetteforum.com/forums/c7-z06-discussion/4992282-just-hit-40k.html https://www.corvetteforum.com/forums/c7-z06-discussion/4992253-track-mode-default-new-post.html Mon, 18 May 2026 12:50:11 GMT I have been driving my new to me Z06. Everytime I have started the car, it started in sport mode automatically. Sport mode traction control is too aggressive for my tastes. I recently started driving... I have been driving my new to me Z06. Everytime I have started the car, it started in sport mode automatically. Sport mode traction control is too aggressive for my tastes. I recently started driving in track mode. Now when I start the car, it defers to touring mode everytime. Is there a way to set the car so it starts in track mode everytime I start the car? Thx in advance ]]> C7 Z06 Discussion WildWolf https://www.corvetteforum.com/forums/c7-z06-discussion/4992253-track-mode-default.html https://www.corvetteforum.com/forums/c7-z06-discussion/4992183-magnusson-2650-pulley-clearance-new-post.html Mon, 18 May 2026 00:07:43 GMT Is anyone out there with a 2650 Magnusson on their ZO6 having a clearance issue with the front pulley? I know the lid is an issue but never heard about the pulley being a problem but seems to be a... Is anyone out there with a 2650 Magnusson on their ZO6 having a clearance issue with the front pulley? I know the lid is an issue but never heard about the pulley being a problem but seems to be a new development for me all of a sudden. Was not hitting last year but fired her up this year and it's actually hitting the frame of the grill insert on the hood for some reason. I'd be interested to hear if anyone else is having or had this issue and how it was resolved other than an aftermarket hood. ]]> C7 Z06 Discussion 2018 ZO6 4 Me https://www.corvetteforum.com/forums/c7-z06-discussion/4992183-magnusson-2650-pulley-clearance.html https://www.corvetteforum.com/forums/c7-z06-discussion/4992050-at-a-loss-need-any-advice-new-post.html Sun, 17 May 2026 00:58:28 GMT Hi everyone, I am the second owner of a 2019 C7 Z-06 M7. I bought the car with just over 14k miles, in March of 2021, I have put just over 10k more easy miles since the purchase. The vehicle has... Hi everyone, I am the second owner of a 2019 C7 Z-06 M7. I bought the car with just over 14k miles, in March of 2021, I have put just over 10k more easy miles since the purchase. The vehicle has 24,850 miles. I took it to the dealership for the25k mile routine maintenance check. The dealer rep, recommended that I replace the spark plugs, cabling for the spark plugs, the pully belt for the super charger and also the engine pully belt. The also found a small leak on a hose that they replaced. I also replaced the battery that needed to be replaced. Upon pick up of the car, I had display codes for the Rear Axle, Differential, Stabilitrack, Check Engine Light was on, the traction control light was on too, and the Rev Match no longer works for prolonged periods of time. I took it back to the dealership, and they said they would correct this along with a misfire that was found on bank 2. I went to pick up the vehicle after they called me and again the lights were displayed again, and they stated they were going to get a TAC from GM to help. A month later after noticing on the app that my car was not being moved nor the gas percentage reducing, I picked up my car and took it to a second dealer. This dealer stated that they could not reproduce the codes, and after a few weeks the car was returned to me. The codes were still visible after driving the car about 3 miles. I am now at a 3rd dealership, and they have replaced all the injectors Bank 1 and Bank 2 and stated that the codes have been removed and so has the misfire. I picked up the car today, and once again the codes were visible after a short distance. I have an extended warranty from GM, at this point, I do not know what to do. As the subject states, I am at a loss, and beyond frustrated. This vehicle is not a daily driver, and it has been babied the 5 years I have owned it. This has been going on since December of 2025. Previous to this the car never had any messages on the display.

Thank you in advance.
]]> C7 Z06 Discussion Icemanx42x https://www.corvetteforum.com/forums/c7-z06-discussion/4992050-at-a-loss-need-any-advice.html https://www.corvetteforum.com/forums/c7-z06-discussion/4991504-corroded-obd2-interface-new-post.html Wed, 13 May 2026 14:14:51 GMT Hey all, going to get my 16’ Z inspected next month. Last time, my garage had difficulty getting the obd2 plug to communicate properly with their computer. Somehow some water has corroded some of... Hey all, going to get my 16’ Z inspected next month. Last time, my garage had difficulty getting the obd2 plug to communicate properly with their computer. Somehow some water has corroded some of the pins and it needs to filed to get a better contact. Not a big deal imho, Amazon has some small needle files and CRC QD contact cleaner. If I carefully clean and file one at a time do I need to disconnect neg terminal? If so, what will be lost when reconnecting battery? TY ]]> C7 Z06 Discussion chasboland https://www.corvetteforum.com/forums/c7-z06-discussion/4991504-corroded-obd2-interface.html https://www.corvetteforum.com/forums/c7-z06-discussion/4991181-carbon-fiber-front-fender-flairs-new-post.html Mon, 11 May 2026 18:51:49 GMT I have carbon fiber front flairs on my 2015 z . They are cracking from track use. They were on the car when i bought the car . I am not sure who made them . Who has be best , strongest ones ( they... I have carbon fiber front flairs on my 2015 z . They are cracking from track use. They were on the car when i bought the car . I am not sure who made them . Who has be best , strongest ones ( they are exposed carbon , not painted ) ?? I WANT TO REPLACE THEM

Thanks for any help
]]> C7 Z06 Discussion WICKED Z https://www.corvetteforum.com/forums/c7-z06-discussion/4991181-carbon-fiber-front-fender-flairs.html https://www.corvetteforum.com/forums/c7-z06-discussion/4991124-replaced-stock-xpipe-with-awe-xpipe-car-is-now-idling-rough-new-post.html Mon, 11 May 2026 13:07:25 GMT Replaced xpipe tightened everything down checked for leaks, seem to be ok. But car is idling rough, OBD reader has picked up codes p102, p107, p300 as well and barometric pressure codes. Should I... Replaced xpipe tightened everything down checked for leaks, seem to be ok. But car is idling rough, OBD reader has picked up codes p102, p107, p300 as well and barometric pressure codes. Should I check my o2 sensors on exhaust manufolds. Has anyone else experienced this? Car is 2017 z06 I’ve had for 5 years. First exhaust mod. Any guidance for troubleshooting would be greatly appreciated. Thank you ]]> C7 Z06 Discussion JaDon79 https://www.corvetteforum.com/forums/c7-z06-discussion/4991124-replaced-stock-xpipe-with-awe-xpipe-car-is-now-idling-rough.html https://www.corvetteforum.com/forums/c7-z06-discussion/4991082-disabling-features-that-automatically-unlock-the-doors-when-the-fob-is-detected-new-post.html Mon, 11 May 2026 00:54:19 GMT I like to disable the feature that detects the key fob being close and allows you just to open the door when they are locked. I have a 2015 Z06. I did a search here and did not come up with anything... I like to disable the feature that detects the key fob being close and allows you just to open the door when they are locked. I have a 2015 Z06. I did a search here and did not come up with anything and when I Googled it I found this which did not work. Anyone ever done this?Center Display - Select Settings > Vehicle > Remote Lock, Unlock, Start > Passive Door Unlock > Off ]]> C7 Z06 Discussion wrknbum https://www.corvetteforum.com/forums/c7-z06-discussion/4991082-disabling-features-that-automatically-unlock-the-doors-when-the-fob-is-detected.html https://www.corvetteforum.com/forums/c7-z06-discussion/4991027-trans-tube-going-bad-new-post.html Sun, 10 May 2026 17:03:28 GMT Hi everyone. Was taking my c7z out today and noticed a weird faint vibration from stopped to 20 mph. Then noticed this weird sound from the rear (https://streamable.com/r0gzkz). Anybody have any... Hi everyone. Was taking my c7z out today and noticed a weird faint vibration from stopped to 20 mph. Then noticed this weird sound from the rear. Anybody have any experience on this topic?

]]> C7 Z06 Discussion BreakLoos https://www.corvetteforum.com/forums/c7-z06-discussion/4991027-trans-tube-going-bad.html https://www.corvetteforum.com/forums/c7-z06-discussion/4991012-diy-ramps-for-2015-z07-new-post.html Sun, 10 May 2026 14:58:13 GMT Hey Guys,
I am interested in building my own wooden ramps for my 2015 Z06/Z07 with Stage 3 aero.
I've looked at the old threads on this subject in this forum (some 10 years old), and cannot find concrete information.
Not really interested in buying Race Ramps, nor QuickJacks, nor twin floor jacks.
I've seen the Mike Mercury "lowered C5" version at https://tim-yvonne.com/mikemercury/lowered.htm, but I see no confirmation they would work on my car. The "email" link at that site no longer works, so I can't email MM (aka Tim) to ask him.
As far as I can tell from the Race Ramp website measuring technique, my approach angle needs to be less than 9 degrees. The low spot on my car is not the front wickerbill/splitter, but rather a rubber air dam about 19" in front of the leading edge of the front tire contact patch, sitting only 3" above the pavement.
I see that Mike Mercury DIY "lowered C5" version starts at 7.5 degrees, then kicks up to 12 degrees. Can anyone confirm these would work on my car? Or do you know of other ramp designs that would work?
Thanks!! ]]> C7 Z06 Discussion GeorgeZ06 https://www.corvetteforum.com/forums/c7-z06-discussion/4991012-diy-ramps-for-2015-z07.html https://www.corvetteforum.com/forums/c7-z06-discussion/4990873-2019-z06-7-spd-gear-selection-message-new-post.html Sat, 09 May 2026 14:11:15 GMT I have a 2019 Z 7 SPD, 5000 Miles I changed clutch fluid and a new battery along with other fluid changes Got a message on my dash - Gear Slipped? What is this? I did feel a slight grind... I have a 2019 Z 7 SPD, 5000 Miles
I changed clutch fluid and a new battery along with other fluid changes
Got a message on my dash - Gear Slipped?
What is this?

I did feel a slight grind between first and second earlier to this
I thought this was my fault, however I now think it might be connected?

Thoughts on both?? ]]> C7 Z06 Discussion Mr Ski https://www.corvetteforum.com/forums/c7-z06-discussion/4990873-2019-z06-7-spd-gear-selection-message.html https://www.corvetteforum.com/forums/c7-z06-discussion/4990697-auxjection-new-post.html Fri, 08 May 2026 12:05:23 GMT Seems promising - what do we think AuxJection | LT4 Stock Supercharger Auxiliary Fuel Injection System – Wisher Performance... Seems promising - what do we think

AuxJection | LT4 Stock Supercharger Auxiliary Fuel Injection System – Wisher Performance ]]> C7 Z06 Discussion R3DRUM https://www.corvetteforum.com/forums/c7-z06-discussion/4990697-auxjection.html https://www.corvetteforum.com/forums/c7-z06-discussion/4990683-tires-for-18-19-setup-new-post.html Fri, 08 May 2026 04:57:21 GMT I'm very smitten with the new Apex SL-12RT wheels in a 18x10 and 19x12 setup (https://apexwheels.com/vehicles/chev...ize=19x12-et50). Any ideas on what tires you'd recommend for this set up? All the online tire shops are being difficult with matching a size for that wheel so I figured id just ask the experts here. ]]> C7 Z06 Discussion ASH503 https://www.corvetteforum.com/forums/c7-z06-discussion/4990683-tires-for-18-19-setup.html