Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best Headers and complete exhaust systems for your street,...

EXCEPT Diesel engine. EXCEPT Dual Rear Wheels. This 3.5" diameter extension pipe is used to adapt the 158.9" Wheelbase BORLA systems to vehicles with Crew Cab with Long Bed (8' 2") 172" Wheelbase. Includes 1)...

This extension pipe is used to adapt the 147.4" Wheelbase BORLA systems to vehicles with Crew Cab with Standard Bed (6' 7") 157" wheelbase. 3" ID inlet, 3" OD outlet, 12" long. Includes 1) 3"...

EXCEPT ZR2 & AT4X models. This extension pipe is used to adapt the BORLA 147.4" Wheelbase Cat-Back systems to fit Crew Cab with Standard Bed (6' 7") 157" Wheelbase vehicles. 3.5" ID inlet, 3.5" OD...

Replace the small muffler behind the primary muffler in the BORLA S-Type system with Polyphonic Harmonizer 60680 to attain the ATAK sound level (louder than S-Type). BORLA'S Polyphonic Harmonizer Technology utilizes patented units that contain...

Replace the Polyphonic Harmonizer behind the primary muffler in the BORLA ATAK system with muffler 60679 to attain the S-Type sound level (quieter than ATAK). Built from premium T-304 stainless steel, superior to T-400 series...

BORLA 's CrateMuffler is the world's first muffler purpose-built to optimize the sound & power of crate and custom built motors. The mufflers are directional. The outlet can be identified by the mounting bracket welded...

BORLA 's CrateMuffler is the world's first muffler purpose-built to optimize the sound & power of crate and custom built motors. The mufflers are directional. The outlet can be identified by the mounting bracket welded...

BORLA 's CrateMuffler is the world's first muffler purpose-built to optimize the sound & power of crate and custom built motors. The mufflers are directional. The outlet can be identified by the mounting bracket welded...

BORLA 's CrateMuffler is the world's first muffler purpose-built to optimize the sound & power of crate and custom built motors. The mufflers are directional. The outlet can be identified by the mounting bracket welded...

This BORLA system has a valve simulator to prevent the Check Engine Light from coming on. Optional True Dual Cat-Back system available. The 3.5" into dual 2.75" system features BORLA 's classic S-Type sound and...

This Cat-Back(tm) system features the classic BORLA(r) S-Type sound level and turn down tail pipes, and is unique in the industry. It features a "True Dual" design which requires cutting the factory Y-Pipe. It was...

This system features the aggressive BORLA(r) ATAK(r) muffler and Polyphonic Harmonizer Technology which utilizes patented units that contain pipes of different diameters and lengths to create multiple exhaust notes that harmonize to deliver a clean,...

This system features the classic BORLA(r) S-Type sound level and turn down tailpipes. It was designed specifically for the Silverado 1500 ZR2 and Sierra 1500 AT4X and delivers great sound without any drone. Replace the...

This system features the mellow BORLA(r) Touring sound level and turn down tailpipes. It was designed specifically for the Silverado 1500 ZR2 and Sierra 1500 AT4X and delivers great sound without any drone. BORLA(r) Cat-Back(tm)...

This BORLA(r) Cat-Back(tm) system was specifically designed to enhance the power and sound of the Chevrolet Tahoe and GMC Yukon equipped with the 6.2L engine. This system features the popular S-Type sound level with no...

This BORLA(r) Cat-Back(tm) system was specifically designed to enhance the power and sound of the Chevrolet Tahoe and GMC Yukon equipped with the 6.2L engine. This system features the mellow Touring sound with no drone...

Features 4" black chrome on T-304 stainless steel tips. Using BORLA(r) Stainless Steel Polish p# 21461 is NOT recommended with these black chrome tips. We suggest cleaning the tips with hot water and a microfiber...