Construction - All systems are constructed of mandrel-bent, T-304 stainless steel (or aluminized mild steel) in 3", 2.5" and 2.25" diameter. BRM's systems are not "mass-produced" and are manufactured by hand. Our fabricators have over 100 years combined experience in custom exhaust design, and we recently sold our 700th catback for the S-chassis.
By the way, we're the exhaust of choice for one of the only 200whp naturally-aspirated KA cars: 200whp-naka-pump-gas-done-t547243.html
MIG welding is used for most welds, some TIG welding is utilized. Welds are cleaned up afterwards for a nicer, finished appearance.
Flanges are 3/8" billet pieces, whereas the competition uses thin, flimsy STAMPED STEEL flanges.
Muffler, resonator, catalytic converter, and tips are ALL Magnaflow units. We've found their stuff to be the best-suited to these applications.
Sound - BRM catbacks are designed for a non-ricey, throaty sound. Deep rumble at idle, and an aggressive, deep tone throughout the RPM range. Can't say much more here, except for NO RICE.
Appearance - BRM believes in maintaining a stock fitment and appearance, and as such, the flashiest thing you'll see is the chrome tips. No weird, unnecessary angled canisters or anything like that. Just clean, timeless style.
Tips - All systems are available with either a 4" single chrome tip or dual 2.5" beveled chrome tips (add $30).
Resonator - A resonator can be added to any system for $70. A 14", 18" or 22" resonator can be selected. Longer resonator = deeper tone. NOTE: 3" systems are ONLY available with the 14" resonator.
Fitment- Our system bolts up to the factory cat flanges and uses the factory hangars.
Catalytic Converter - A high-flow cat (any size) can be added to any system for $135, and can be purchased separately for $155. This is a direct bolt-in catalytic converter, in the stock length, complete with flanges and hardware.
Pricing - S13/S14 pricing (with resonator) is as follows:
2.25"aluminized $400, stainless $500
2.5" aluminized $400, stainless $500
3.0" aluminized $460, stainless $560
ADD $30 FOR DUAL TIPS.
Shipping (48 states) is $45. Shipping to Canada is $75.
Turnaround time is roughly 8 days. Sometimes we're faster!
Aluminized or Stainless - Which to choose? - Aluminized (not aluminum) tubing is a coated mild steel. It's basically what most auto manufacturers use for OEM systems. Not as resistant to corrosion and weighs about a half-pound more. Performance is identical.
Aluminized steel is great if you live in an arid climate and don't really worry about rust. If you live in an area with a lot of snow, rain, or near the ocean, stainless is a smarter choice. Stainless will not corrode and is guaranteed for as long as you own the car.
Contact and ordering - http://www.brmexhaust.com .
Note - BRM is incorporated along with NICO, and any profits from BRM go towards offsetting the enormous expense of keeping NICO up and running as the #1 Nissan/Infiniti resource on the web.
FREQUENTLY ASKED QUESTIONS:
What is a resonator, and do I need one?
A resonator is critical for a street-driven car. Here are some basic, layman's terms explanations:
There are 3 common ways to reduce sound in an exh system: Resonator (reflected waves), muffler (wave absorbtion and reflection) and silencer (reflected waves and restriction). BRM uses a resonator and a straight-through muffler on its systems for the S13 and S14.
Resonator is a straight-through chamber sized larger than the inlet / outlet, sometimes with baffles or slots (think old-school cherry bombs). Tuned properly (through placement, diameter, length, shape and location) it will actually cancel out certain frequencies as the sound waves collide, yet does not impede flow.
Muffler is a chamber with internal walls (think of a maze) that the gasses travel through. As the waves pass through, they are disrupted and "chopped up" and the sound is absorbed by the surrounding packing (think of an insulated room). Can be restrictive depending on design - if it's a straight-through design, it will not impact flow and actually makes very little impact on the sound (primarily "fine tunes" the exhaust note).
Silencer is a conical obstruction placed in the exhaust system which reflects sound waves back against themselves, cancelling certain frequencies, much like a resonator. But it also works by restricting the amount of flow, thereby reducing sound levels. May as well shove a potato in your tailpipe and bore a small hole in it.
What size should i get?The most commonly-asked question by far... Short answer - The KA and SR both function VERY well with 2.5" exhaust. Many will tell you that a turbo car needs a 3" exhaust to function properly, to which we say, NOPE.
Keep in mind that 2.5" is a significant increase in size over the stock system, and there are far less bends / restrictions in our system. Unless you're pushing 400+ hp, there's really no need for 3". However, we understand that some folks prefer a larger pipe diameter, so if that's what you want, then we'll build it for you!
PICS PICS PICS!!!
good luck on your decision!