Skip to content
  • Home
  • Shop By Project
  • Garage Toolboxes & Storage
  • Automotive Gear
  • Backup Power & Off-Grid Gear
  • Outdoor Adventure Gear
  • Lawn, Garden & Winter Gear
  • Heavy-Duty & Construction Equipment
  • Overstock & Clearance
  • 🏠 DIY Home Spaces
Garage Gear Direct

Your cart is empty

Continue shopping
0Cart($0.00 USD)
  • Home
    • About us
    • All Products
  • Shop By Project
    • Build My Dream Garage
    • Garage Storage Makeover
      • OSM Pro Series Loaded Bundles
      • Rolling Tool Boxes
    • Home Workshop Setup
    • Pro Shop & Commercial
    • Backup Power & Off-Grid
    • Outdoor Adventure Garage
  • Garage Toolboxes & Storage
    • Hand Tools
      • Axes & Hatchets
      • Bits & Sockets
      • Chisels, Punches & Awls
      • Clamps
      • Hammers & Mallets
      • Hand Saws
      • Knives & Utility Knives
      • Masonry Tools
      • Measuring Levels, Tapes, & Tools
      • Pliers, Riveters, Snips
      • Screwdrivers
      • Specialty Tools
      • Woodworking Tools
      • Work Gloves
      • Wrench & Ratchet
    • Power Tools
      • Bits - Screwdriver, Drill, Driver, Router
      • Compressors
      • Flashlights & Lanterns
      • Grinders
      • Laser Equipment
      • Laser Measure & Level
      • Oscillating Tools & Attachments
      • Parts & Attachments
      • Polisher
      • Power Drills, Drivers, Hammers, & Screwdrivers
      • Power Nailer
      • Power Saws
      • Power Tool Batteries
      • Replacements- Blades, Grinder Wheels, Flappers
      • Routers
      • Sanders
      • Shears & Cutters
      • Specialty Power Tools
      • Vacuums
    • Tool Organization
    • Tool Selections
      • Fans
      • Ladders & Step Stools
      • Safety Gear
      • Work Lights
      • Heavy-Duty & Construction Equipment
    • Tool Sets, Tool Bags, & Tool Rolls
      • EVA Foam Sizing Tool Sets
      • Tool Rolls & Tool Bags
      • Tool Sets
    • Tool Boxes & Workbenches
      • Hand Carry Tool Boxes
      • Loaded Tool Boxes
      • Rolling Tool Boxes
      • Stationary Tool Boxes
      • Workbenches
    • Pro Build-out Modular Tool Storage
      • OSM Pro Series Modular - Custom Build Out
      • OSM Pro Series Loaded Bundles
      • Pre-Configured Modules
    • Security Gear
      • Safes
      • Surveillance Cameras
    • Storage Solutions
      • Ceiling Storage
      • Freestanding Rack Shelving & Storage
      • Storage Cabinets
      • Toy & Sports Gear Storage
      • Wall Organization & Storage Racks
    • Heavy-Duty & Commercial Construction Tools
    • Pro Cleaning Gear
    • Skid Steers & Attachments
    • Welding Tools
  • Automotive Gear
    • Autobody Shop Gear
      • Added Gear & Kits
      • Air Compressors, Tire Gauge, Vehicle Jump Boosters
      • Autobody Shop Heavy Equipment
      • Welding Tools
    • Batteries
    • Engine/Motor
      • Cooling Systems
      • Cylinder Block
      • Exhaust & Emissions
      • Filters
      • Fuel/Energy System
      • Hoses & Belts
      • Spark Plugs
      • Valve Train
    • Transmission
    • Drivetrain
      • Airbox Kits
      • Transfer Case
    • Chassis & Control
      • Brake System
      • Chassis Wiring
      • Driveline & Axels
      • Steering System
      • Suspension System
      • Tires & Wheels
    • Body & Interior
      • Exterior Gear
      • Frame/Unibody
      • Interior Gear
      • Lift, Tow, & Winch
      • Safety Features
      • Windows & Mirrors
    • Electrical & Electronics
      • Audio & Video
      • Fuses & Circuit Breakers
      • HVAC (Automotive)
      • Ignition Systems
      • Lights
      • Sensors and Actuators
      • Starting & Charging
      • Vehicle Dynamics Software
    • Electric Vehicle (EV) Parts & Accessories
    • Motorcycle Parts
    • Snowmobiles & Parts
    • Roadside Assistance
    • Welding Tools
  • Backup Power & Off-Grid Gear
    • Batteries
    • Gas Powered & Dual-Fuel Generators
    • Power Banks & Hubs
    • Power Inverters
    • Power Stations & Solar - Portable & Whole Home
    • Wind Turbines
    • Well & Water Filtration
  • Outdoor Adventure Gear
    • Bikes & Bike Gear
      • Bikes & Bike Gear
      • Cycling Apparel
    • Boats & Water Sports
    • Camping Adventure Gear
      • Backpacks & Water Packs
      • Camping Gear
      • Camp Kitchen
      • Flashlights & Lanterns
      • Hammocks
      • Rooftop Tents
      • RV & Camper Gear
      • Sleeping Bags, Pads, & Mattresses
      • Survival Gear
      • Tents
      • Vehicle Camping Gear
    • Climbing Gear
    • Hiking Gear
    • Motor Sports Gear
    • Snow Gear
    • Apparel
    • Toys & E-Toys (Land & Sea)
      • E-Bikes & Electric Off-Road Dirt Bikes
      • E-Go Kart
      • E-Scooters & E-Skateboards
      • E-SeaScooters
      • Electric Mobility Scooters & Chairs
    • ATV, UTV, Quad, Go-Kart
    • Snowmobiles & Parts
    • Saunas, Steam Rooms, & Equipment
    • Toy & Sports Gear Storage
    • Overstock - Outdoor Adventure
  • Lawn, Garden & Winter Gear
    • Barns, Sheds, Garages, & Carports
    • Coops & Pens
    • Garden Tools
    • Gates
    • Greenhouses
    • Heavy-Duty Tools (Create & Maintain)
    • Hydroponics
    • Pest & Weed Control
    • Smart Outdoor Tools
    • Winter Equipment
  • Heavy-Duty & Construction Equipment
    • Heavy-Duty & Construction Equipment
    • Skid Steers & Attachments
  • Overstock & Clearance
    • Appliances
    • Fireplaces, Pits, & Stoves
    • Grill Accessories
    • Gym Equipment & Gear
    • HVAC - Heating & Cooling
    • Pool & Spa
    • Saunas, Steam Rooms, & Equipment
    • Water Heaters
  • 🏠 DIY Home Spaces
GET $100 OFF YOUR $2000 ORDER!
Home THERMAL R&D 2012-2015 Honda Civic Si - 2.5" - 4 Door - Catback Exhaust

THERMAL R&D 2012-2015 Honda Civic Si - 2.5" - 4 Door - Catback Exhaust

$985.00 USD $650.00 USD / Save $335.00
Shipping calculated at checkout.
Speedzone Performance LLC

THERMAL R&D 2012-2015 Honda Civic Si - 2.5" - 4 Door - Catback Exhaust

$985.00 USD $650.00 USD / Save $335.00
Shipping calculated at checkout.
Low Stock (2)
 
 
This item is a deferred, subscription, or recurring purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted.
Payment & Security
American Express
Apple Pay
Diners Club
Discover
Google Pay
Mastercard
PayPal
Shop Pay
Venmo
Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

  • ✔ Fast, insured shipping from US warehouses
  • ✔ Authorized dealer for every brand we sell
  • ✔ Backed by full manufacturer warranty
  • ✔ Questions? Email info@garagegeardirect.com
  • Usually ships within 3–5 days and delivers within 10 business days.

    B180 - C180 System Specifications:

    • 2.5" Diameter Tubing
    • 4.5" Diameter Tip
    • 304 Grade Stainless Steel

    The 9th Generation Si exhaust is the first Honda system that introduced our True Helmholtz Technology, offering a top of the line sound in this catback exhaust system. The 2.5” system is made of T304 Stainless Steel with a resonated midpipe and Thermal's signature Helmholtz chamber. This sound control combination was engineered to achieve the desired tone at launch and acceleration, while cancelling the dreaded drone during cruising.    

    The 4.5” angle cut tip completes the Thermal’s variation on the 9th Gen exhaust. Available in both 4 door and coupe, the system’s tubing is brush finished while mufflers and tip are polished. Hangers mount up to the OEM allowing for and easy direct fit install.

    Thermal R&D Exhaust systems are designed with quality of sound and manufacturing as our number one goal. Built from T304 Stainless Steel, the fit and finish of our products are designed for performance on both the street and the track. Understanding that the exhaust is the starting point for many builds, our high-performance exhaust will allow additional modifications to perform at their peak. We engineer our products with the goal of achieving the best all-around product for a given application.   

    Company
    • About us
    • Terms of Service
    • Privacy Policy
    • Payment Policy
    • Shipping Policy
    • Track Your Order
    • Cookies Policy
    • Disclaimer
    • Returns, Refunds, & Warranty Policies
    • Mobile Terms of Service
    • Contact Us
    Featured Categories
    • All Products
    • Build My Dream Garage
    • Garage Storage Makeover
    • Home Workshop Setup
    • Pro Shop & Commercial
    • Backup Power & Off-Grid
    • Outdoor Adventure Garage
    • Automotive Gear
    • Tool Boxes & Workbenches
    • Hand Tools
    • Power Tools
    • Lawn, Garden & Winter Gear
    • Heavy-Duty & Construction Equipment
    • Overstock & Clearance
    Subscribe for Email Updates and Discounts!
    YES, We are open and accepting online orders!

    Sign up for our newsletter and receive up to 10% off your first order!
    Contact Us:

    Skyli Holdings LLC
    dba
    Garage Gear Direct

    Business Address:
    2823 Red Wheat Ln
    Berthoud, CO 80513

    Customer Service Phone:
    (970) 699-4343

    American Express
    Apple Pay
    Diners Club
    Discover
    Google Pay
    Mastercard
    PayPal
    Shop Pay
    Venmo
    Visa

    © 2026 Garage Gear Direct, All rights reserved. Powered by Shopify