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Pontiac Trans Am 5.7L 1987-1992, 3" Adj™ Stainless Steel Cat-Back Exhaust System by Borla®, AGGRESSIVE SOUND, 3" Tubing, Split Rear Exit, and 2.5" Inlet / 7" Outlet Dual Round Angle-Cut Tips. This unique system allows you to adjust your level of sound and power, from quiet and restrictive to louder and free flowing. It features a patented Borla straight-through muffler and mandrel bent pipes constructed from aircraft grade austenitic stainless steel, and it’s backed by Borla’s unequalled one million mile warranty.
- Aggressive Sound
- A selection of block-off plates allows you to adjust exhaust flow
- Plate with larger hole for increased power and a more aggressive exhaust note
- Plate with smaller hole for quieter operation
- Custom designed for each application
- Patented straight-through muffler design reduces backpressure while absorbing sound waves
- Mandrel-bent stainless steel tubes with diameters optimized for reduced restriction while maintaining exhaust gas speed
- Made from the finest austenitic stainless steel for long-lasting durability
- All welded construction
- Includes polished exhaust tips
- Includes everything required for installation, including detailed instructions
- Backed by the exclusive Borla Million-Mile warranty
- Proudly made in the USA
Imagine being able to change the sound of your car and its power level with just 3 bolts! That’s how many bolts retain the block-off plate on the Borla 3” Adjustable Series Stainless Steel Cat-Back Exhaust System. Borla starts by giving you the best raw materials:
The patented straight through muffler design reduces restriction and increases exhaust gas velocity, making sure each cylinder is completely evacuated to make room for the incoming charge. This design absorbs the sound waves without disturbing the power waves, in contrast to the chambered mufflers used by most aftermarket companies. Chambered mufflers use partitions or baffles to subdue sound waves, which also creates backpressure and reduces power.
The shape and diameter of the exhaust tubing is optimized for volume and exhaust gas velocity. Borla mandrel bends the stainless steel tubing for smooth bends and to make sure the pipe maintains its size and shape throughout the entire length. Tubes that aren’t mandrel bent can lose a percentage of their diameter in sharp bends.
Then you get to be the tuner. A block-off plate is positioned at the junction of the passenger side exhaust pipe and the entrance to the muffler. You can change the block-off plate to determine how much exhaust flow goes through the muffler and how much bypasses the muffler and goes straight out the passenger side pipe. With the solid plate all exhaust is directed through the muffler and out the driver exhaust pipe, for the quietest operation. Or use the plate with the largest hole so most of the exhaust exits from the passenger exhaust pipe, for the most exhaust flow and a more raucous exhaust note.
Finally, the best power and sound is meaningless if the exhaust system rots away in a few years. Borla uses the finest materials and construction techniques to make sure this won’t happen. They use austenitic stainless steel for their systems, which contains high levels of nickel and chromium, to resist corrosion. This material is harder than the lower grade stainless steel used by the OEM manufacturers, yet is very ductile. Nevertheless, the increased hardness requires special equipment to form and bend. The muffler contains a stainless steel perforated tube wrapped with several layers of stainless steel sound absorbing material and a layer of ceramic sound absorbing, high temperature material, all contained in a fully welded stainless steel shell.
The Borla 3” Adjustable Series Stainless Steel Cat-Back Exhaust System comes complete with everything required for installation, including detailed instructions. Borla is so confident in the quality of this system that it’s guaranteed against defects in materials and workmanship for one million miles.860.19Brand: Borla Part Number: 14888 UPC: 808422148887
Borla® is the leading manufacturer of stainless steel performance exhaust products. The company began three decades ago making exhaust systems for concours classic Rolls Royce and Ferrari models, and gradually evolved to become the premier manufacturer of performance exhaust products for street, off-road and racing. Borla pioneered many improvements in the design of performance exhaust systems, holds several patents for innovative exhaust system technology, and has won numerous “Best New Product” awards. Today the company operates a state of the art research and development center in Oxnard, California, and makes all of its products at a world-class manufacturing facility in Johnson City, Tennessee.Product Reviews (4)
Every Customer can leave a review about our service and the product that was purchased. In order to leave your review for your new product, please follow the link in the email you receive after completing your purchase. You can rate appearance, ease of installation, price/value and product quality.Borla® - 3" Adj™ Stainless Steel Cat-Back Exhaust System - Split Rear ExitAverage Rating: 5 of 5APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYAll Borla Reviews(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYInstalled on 1997 Pontiac Grand Prix Gt2003 Pontiac Grand Prix
| Posted by Anthony Stolzenberger S. | (Platteville, CO)
Great addition to the car that has a new engine as of three weeks ago. After the break in period, people were looking twice because they couldn't believe it was a Grand Prix. Has the perfect level of aggressive sound.Was this review helpful for you? YesNo(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITY(5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYTail Pipe CoverPontiac
| Posted by Kristie D. | (Sussex, NJ)
Honestly, looks so cool. I'm in love with the way it looks. Spices up my 2010 Ford Focus.Was this review helpful for you? YesNo(4.5)APPEARANCEEASE OF INSTALLATIONPRICE/VALUEQUALITYBorla® - Cat-Back System; 2.4L 4CYL RWD AT/MT 2DR2007 Pontiac Solstice
| Posted by Hubert A. | (Baytown, TX)
I had a local muffler shop install the system. They had no problems, and their install price was reasonable. At first, I was somewhat disappointed in the system, as I expected the exhaust note to change dramaticallly, and it did not. However, after a rather lengthy (to me) burn in period, it did change. I was suprised at the time required for the system to "burn in". I did not make any long trips, and it took several shorter "in town" runs for the "burnt smell" to go away and the exhaust note to noticablly change. So far, I'm quite satisfied with the system.Was this review helpful for you? YesNo
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