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Description
Borla 11856CB - Axle-Back Exhaust System ATAK(r)EXCEPT Grand Sport with Manual Transmission. This Axle Back system includes both AFM and NPP valves. System features a durable high temperature Ceramic Black finish on 4. 25" T 304 stainless steel tips. Polished T 304 stainless steel tips are also avaiable. BORLA(r) Cat Back(tm) & Axle Back multi core technology is designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive
EXCEPT Grand Sport with Manual Transmission. This Axle-Back system includes both AFM and NPP valves. System features a durable high-temperature Ceramic Black finish on 4.25" T-304 stainless steel tips. Polished T-304 stainless steel tips are also avaiable. BORLA(r) Cat-Back(tm) & Axle-Back multi-core technology is designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA(r) Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. BORLA(r)'S C7 Corvette Axle-Back exhaust systems are covered under our Million-Mile Warranty for non-moving parts, the exhaust valves are warrantied for 1 year. Failures of original equipment AFM and NPP actuators are not covered by the BORLA(r) warranty
Specifications:
| Description_ASM | 2014-2019 Chevrolet Corvette (C7) 6.2L V8 Automatic/ Manual Transmission Rear Wheel Drive 2 Door With AFM Valves With NPP Valves. EXCEPT Grand Sport With Manual Transmission. |
| Description_DEF | Exhaust System Kit |
| Description_DES | Axle-Back Exhaust System - ATAK(r) |
| Description_EXT | ATAK(r) Axle-Back Exhaust System 2014-2019 Chevrolet Corvette (C7) 6.2L V8 Automatic/ Manual Transmission Rear Wheel Drive 2 Door With AFM Valves With NPP Valves. EXCEPT Grand Sport With Manual Transmission. |
| Description_FAB | System contains AFM and NPP valves |
| Description_FAB | EXCEPT Grand Sport models with Manual Transmission |
| Description_INV | BORLA(r) Axle-Back System |
| Description_MKT | EXCEPT Grand Sport with Manual Transmission. This Axle-Back system includes both AFM and NPP valves. System features a durable high-temperature Ceramic Black finish on 4.25" T-304 stainless steel tips. Polished T-304 stainless steel tips are also avaiable. BORLA(r) Cat-Back(tm) & Axle-Back multi-core technology is designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA(r) Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. BORLA(r)'S C7 Corvette Axle-Back exhaust systems are covered under our Million-Mile Warranty for non-moving parts, the exhaust valves are warrantied for 1 year. Failures of original equipment AFM and NPP actuators are not covered by the BORLA(r) warranty |
| Description_SHO | Axle-Back System |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.1 ★★★★★
Based on 2287 reviews
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Product Reviews
★★★★★ 5
If pump doesn't seem to work
Size: For 85-300 HP, Size: For 85-300 HP
Hi....I apologize it took me a while to get back to you with my results. Here is what I discovered about the pump and will also apply to some of the other comments I read in the reviews with people not getting the pump to work:
1.) I removed the pump to check the proper direction of the impeller and it was correct as can be seen in the photo.
2.) I built a pump shaft attachement so that I could operate the pump with a power drill.
3.) I attached the water muff to the unit and tried to pump water.....it wouldn't do so. What I did see however was that even at high hose discharge and small leakage at the muff I could not fill the water cavity in the housing.
4.) I installed a strap around the muff and tightened it very tight and THEN at high hose pressure I was able to get the cavity to fill with water.
5.) At that point I activated the drill and was able to get the pump to actually pump water. I then removed the pump housing and removed the O-Ring that resides on top of the impeller, reassembled and it would not pump water. Since the O-Ring sits higher than the original does I wanted to make sure that it was necessary to have it in the pump.
6.) I reassembled the engine and kept the tight strap on the bottom and finally it pumped water into the engine.
My conclusion that you can reply to other buyers if they have a problem:
Do NOT underestimate 2 things....1.)the lack of ability of the pump to draw water up AND 2.)the fact that if the muff leaks it will NOT fill the cavity when common sense says it should. This was a 120hp Johnson. The engine bottom must be immersed fully or the muff must be very tight on the lower unit for the pump to function.
Please feel free to post this if you wish.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 12, 2024
★★★★★ 5
Exelente
Size: For 85-300 HP
Exelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
★★★★★ 5
Good as new
Size: Package Dimensions 6.02 x 4.02 x 2.05 inches
Fitment was great and works as it should. Good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2025
★★★★★ 3
Incorrect motor listed. Far smaller impeller than what's in the 6 horse johnson.
Size: For 5.5HP 6HP 7.5HP
It seems to be of good quality. However it does not fit a 6 horse johnson as it states. Therefore it will not pump water or function for my purposes. It was a waste of money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 15, 2025
★★★★★ 5
Good product
Worked for what I needed. Fit great and easy to install.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
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