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The Buick Rainier is one of the most successful mid-size SUV models ever sold. Yet it can be upgraded to give even more power than is released by the stock components. Installing a custom exhaust system is one of the easiest ways to boost performance. Stock exhausts, including the Rainier exhaust system, are made in a smaller size than they should be. This is done in an effort to keep the cost of production down. One reason why a custom exhaust system is best for your car is because it has wide exhaust pipes and headers that are a precise fit for the engine. This automatically increases exhaust flow, leaving the engine to perform optimally. As a result, your engine gives more horsepower and torque. Find the best quality custom exhaust systems at CARiD. The shop stocks different exhaust models for the Rainier from top manufacturers such as Flowmaster, MagnaFlow, Borla, Gibson, MBRP, Zunden, Weapon-R and Onki.

With the Flowmaster cat back system for the Rainier, you can expect between 5% and 10% more power. Individual exhaust parts that you can custom fit into the existing exhaust system for a change in tone and performance are catalytic converters, headers and exhaust mid-pipes from Borla, RBP, Flowmaster, Gibson, MagnaFlow, MBRP, Onki and Weapon-R. In addition to increase in power and torque, a custom exhaust will give your Rainier a deeper exhaust note. There are variations in the sound produced by each exhaust system, and you have plenty of options to choose from. From a deep, roaring sound to a mild, controlled rumble or a loud but clean note, you will achieve the sound you want with a custom exhaust from CARiD.

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    • Fel-Pro Exhaust Manifold Gasket Set
      (0 reviews)
      # sp4472
      Exhaust Manifold Gasket Set by Fel-Pro. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets meet specific OEM...
      $5.32 - $101.55
    • Fel-Pro Exhaust Pipe Flange Gasket
      (1 reviews)
      # sp4473
      Exhaust Pipe Flange Gasket by Fel-Pro. If you need durable gaskets to prevent leaks on your vehicle, Fel-Pro is the way to go. Engineered using the latest technologies and global engineering resources, the gaskets meet specific OEM...
      $1.98 - $35.32
    • Spec-D Exhaust System
      (27 reviews)
      # sp2790
      Exhaust System by Spec-D. Make whatever you drive run and sound like a high-performance machine with a Spec-D Exhaust System. The Spec-D system replaces your restrictive factory pipes and mufflers with large diameter mandrel bent...
      $14.24 - $623.00
    • BBK CNC-Series Performance Exhaust Header
      (1 reviews)
      # sp2369
      CNC-Series Performance Exhaust Header by BBK Performance. Each set of BBK long tube, full length headers is CAD designed and manufactured with 1 5/8" CNC mandrel bent tubing and a 3" collector with a leak-free ball and socket...
      $349.99 - $569.99
    • DNJ Engine Components Exhaust Manifold Gasket Set
      (0 reviews)
      # sp13359
      Exhaust Manifold Gasket Set by DNJ Engine Components. Get this top-grade quality replacement for your worn out part from DNJ. Expertly crafted from premium materials, this product is of the finest quality to provide you with...
      $5.08 - $45.70
    • MBRP Smokers Exhaust Stack
      (0 reviews)
      # sp7447
      Universal Smokers Exhaust Stack by MBRP. Nothing says big-rig brawn like a set of stacks belching diesel exhaust straight up in the air. Its a great look for a diesel pickup, as well as being totally practical. Pick the stack size...
      $159.99 - $274.99
    • GReddy Exhaust Gasket
      (0 reviews)
      # sp17181
      Exhaust Gasket by GReddy.
      $4.75 - $23.75
    • MagnaFlow Direct Fit Catalytic Converter
      (34 reviews)
      # sp839
      Direct Fit Catalytic Converter by MagnaFlow. If your cat needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the factory unit, with little or no...
      $164.99 - $1,748.68
    • MagnaFlow Direct Fit Pre-OBDII Catalytic Converter
      (24 reviews)
      # sp7280
      Direct Fit Pre-OBDII Catalytic Converter by MagnaFlow. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace the factory unit, with...
      $79.39 - $1,095.80
    • Spectre Performance Header Bolt Set
      (1 reviews)
      # sp17230
      Universal Header Bolt by Spectre Performance.
      $9.96 - $16.60
    • Walker Direct Fit Catalytic Converter
      (19 reviews)
      # sp4303
      Direct Fit Catalytic Converter by Walker. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an...
      $82.51 - $846.42
    • Walker Universal Fit Catalytic Converter
      (0 reviews)
      # sp4304
      Universal Fit Catalytic Converter by Walker. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker,...
      $59.08 - $435.22
    • Walker Catalytic Converter
      (19 reviews)
      # sp4305
      Catalytic Converter by Walker. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an industry...
      $59.08 - $846.42
    • Walker Exhaust Gasket
      (13 reviews)
      # sp4409
      Exhaust Gasket by Walker. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker accessories, you get...
      $2.08 - $29.51
    • Walker Exhaust Hanger
      (11 reviews)
      # sp4410
      Exhaust Hanger by Walker. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker accessories, you get...
      $1.82 - $50.90




    Guides & Articles

    • Performance Exhaust Systems
      Are Headers Worth The Performance Improvement?
      Engines have often been compared to air pumps, because the engine that’s most efficient in terms of economy and power is the one that can get air in and out of its cylinders the easiest. That’s why most performance modifications like conical air filters, cold air intake systems, headers, and cat-back exhaust systems are aimed at making the intake and exhaust systems less restrictive. These parts increase the flow of air into the engine and ease the flow of exhaust gas out of the engine. Among these components, headers may be the most difficult to install. In this article, we’ll discuss what headers do, their different types, and how much performance they can add to your car.
    • Performance Exhaust Systems
      Are X-pipes and H-pipes Better Than Straight Pipes on Dual Exhaust Systems?
      You may be wondering why so many aftermarket performance exhaust system manufacturers are offering dual exhaust systems connected by "H-pipe" or "X-pipe" sections. After all, aren't two separate pipes, or so-called "true duals", the best for performance? The answer is no, but to understand why we have to examine how a typical internal combustion engine works.
    • Performance Exhaust Systems
      Power, Sound, Looks | Can I Have It All With a Cat-Back Exhaust System?
      It's an age-old question that many have asked. Will an aftermarket exhaust be worth the expense? While they definitely can be, an important question to ask yourself is do you care more about the deeper sound they’re designed to produce, or the added performance gained from being less restrictive? As car enthusiasts, we’ve become accustomed to associating the sound of a car with its exhaust. After all, doesn’t everyone have a childhood memory or two of a car and the particular sound it made?
    • Bed Accessories
      Pickup Truck Cab And Bed Sizes Are Important When Selecting Accessories
      Americans love to have choices. Buying a dress shirt? Decide solid or stripe, short or long sleeve, cotton or poly blend, button or spread collar, regular fit, slim fit, or big & tall. How about a meal at your favorite steak house? Will it be porterhouse, T-bone, or sirloin? Cooked rare, medium-rare, or medium? With baked, mashed, or French fried potatoes? Thirsty for a fancy cup of coffee? Let's not even get started on options that let you end up with a "grande caramel macchiato with 1% low-fat milk, 2 Splendas, and an extra espresso shot".
    • Replacement Exhaust Parts
      Direct Fit vs. Universal Mufflers
      Regardless of whether you're shopping for a simple replacement muffler that delivers original equipment (OE) sound and performance or an upgraded muffler which provides a deeper growl with increased power through freer exhaust flow, you'll see choices between "direct fit" mufflers and "universal" mufflers. In this article, we'll help you understand the differences between these two styles so you can make a more informed purchase.

    Popular Products

    Buick Rainier Performance Exhaust Systems Reviews

    Average rating:  4.5  4.5 - 39 reviews
    5 of 5
    CanAmMex® 00747-212 - Thunderbolt™ Hi-Polished Single Rolled Angled Oval Tip
    These appear to be of very good quality, good welds.
    JPosted by John (Enfield, CT) /
    Was this review helpful for you? Yes
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