There are many companies that make bolt-on aftermarket headers and exhaust systems for prevalent Euros such as Honda Civics and Accords, but only a company like Bosal also has applications for the more “unusual” vehicles like the

{{{Acura Integra}}}, BMW, {{{Mitsubishi Eclipse}}}, Dodge/{{{Plymouth Neon}}}, Mazda, Volkswagen and the {{{Ford Probe}}}. So, when we decided to replace the exhaust system on our Project ’95 Probe from the head to the tip, we chose Bosal’s popular Brospeed bolt-on stainless steel performance exhaust system.

Bolt-On Power

A Little Background

The history of Bosal dates back to the 17th century when the Bos family, originally blacksmiths from Germany, settled in the Dutch town of Alkmaar. Bosal’s name derives from the Bos family name and the initial letters of their hometown Alkmaar. There Karel Bos (1896) started supplying the first exhaust systems in 1923. The present cfhairman of the Bosal Group, Karel Bos (1928), founded the first Bosal plants in South Africa in the 1950s where he started the first production facility for exhaust systems.

After establishing a manufacturing operation in Canada, Mr. Bos started production in Europe in 1968. Now, Bosal has 28 production plants in 17 countries and 45 distribustion centers and is regarded as one of the most important suppliers of exhaust systems in the world.

From the production of steel tube for exhaust systems, Bosal has expanded and developed its product ranges. The company has also become one of the foremost producers of welded steel pipes, tow bars, roof carriers, warehouse racking and cabs for industrial vehicles. Bosal products are now sold in more than 100 countries throughout the world and have become an OE supplier for GM, Rover, Jaguar, Saab and Audi.

The Specifications

Each Brospeed exhaust system is manufactured from T-304 stainless steel, and the headers are made of ceramic-coated mild steel. All Brospeed systems include polished chrome tips with a true rolled edge, high-quality MIG welded joints to prevent vibration fatigue, a low restriction muffler with tuned expansion chambers, a double-wrap, 20-gauge aluminized steel casing and double end caps. Mandrel tube bending ensures uniform tube diameter, header and exhaust tubes use 14-gauge mild steel, a unique “flex joint” absorbs front-wheel-drive (FWD) engine torque and vibration, and all connections are fitted with heavy gauge flanges, jig-drilled and ground to ensure gas-tight seals.

Brospeed’s free-flow systems and headers are precision engineered and dynamometer-tuned for optimum engine performance. (Typical increases in engine output are from 10- to 15-percent when the systems are installed with headers and from five- to seven-percent with a “cat-back” exhaust only.) Using our previously established baseline figure of 89.5 horsepower to the wheels, we got approximately a nine-percent gain, boosting the 2.0-liter four-banger’s output to 97.5 HP. Not bad for a smog-legal exhaust system. And, the improved looks of the stainless steel system and the cool chrome “can” (tip) are real pluses.

To determine just how truly “bolt-on” the Brospeed system really is, we called on performance exhaust builder/installer Lee Watts at Chino Valley Muffler (Chino, California). Lee made quick work of the project, bolting everything up with no cutting, welding or modifications necessary. The factory “flex pipe” was replaced with a simpler, more effective “ball joint” and donut between the header collector pipe and the catalytic converter (which remained in line). The oxygen sensor and EGR were retained on the new header and all factory rubber hangers were utilized. Gaskets, bolts and self-locking nuts are included and all systems are guaranteed for five years.

In a nutshell, Lee said of the system, “I’m impressed!” The fit and finish are flawless, and the ease of installation of everything was great. Because we were replacing the entire exhaust system as well as the header, Lee started at the rear end of the Probe. After watching him do the work, we’d have to agree, start at the tailpipe, not the engine. Take a look at the photos and you’ll see just how simple it is to help your engine pass gas better with Brospeed.