Applications:2012-15 Honda Civic Si. Fits both 2 and 4 door vehicles.
Note: It is highly recommended to upgrade your rear engine mount to a Hasport rear mount to limit movement.
You must tune the car if you are going to run the high flow cat. Without tuning the car will not run properly and can burn up the cat.
The 9th Gen Honda Civic SI seems to be following right along in the footsteps of the 8th Gen design. Both cars are pretty similar in style on the outside, but under the hood, the 2012 and up chassis now comes with a bigger K24Z engine and a brand new cylinder head design. Looking a bit more closely at the exhaust side, you'll notice that the exhaust ports all merge together into a single outlet flange that is cast directly into the head itself. Bolted up to this flange you'll find the stock catalytic converter positioned right before the exhaust piping. It is pretty much common knowledge that stock catalytic converters can be very restrictive and when they are deleted or replaced with high flow units, the result is noticeable increases in performance.
The K-Tuned 9th Gen Downpipe completely replaces the factory cat section with a free flowing 3" downpipe. We started things off with a cast stainless steel housing, designed to offer a smooth transition from the head flange to the exiting 2-bolt exhaust flange. The T304 stainless 3" diameter pipe section is beautifully tig welded and bolts up to the housing, before heading downward perfectly past the factory subframe and swaybar. Welded into the lower part of the downpipe is a high quality Vibrant Turbo Flex section with interlocking inner liner to absorb the normal engine movement. On the cast housing, we positioned 2 x O2 sensor bungs, one for the primary O2 and a second for an accessory O2 sensor, which we also include a plug for in case it is unused. The downpipe is available with or without a high flow cat and both setups greatly reduce overall exhaust system restriction. Note that our cat option keeps the cat positioned properly, as close to the head as possible to keep it hot and functioning efficiently. Cats that are positioned too far away from the head do not heat up enough to work effectively. We include all the hardware needed for installation, including: 1 x O2 plug, 2 x serrated M8 nuts, 1 x M8 bolt and 1 x M8 washer for the housing to head connection. Note that some of the original hardware will still be used to hold the housing in place. Be sure to check out our K-Tuned 9th Gen 3" Exhaust System, it will mate up perfectly to our downpipe and gains will increase even more with our complete system.
Note: Replacement studs are 40mm/1.55' and nuts are 3/8ths -24. Replacement hardware is available as special request.
Delivery time breakdown, depending on where this item is available.
Laval Location: Typically ready to ship within 24 to 48 hours.
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Canadian Warehouse: Typically ready to ship within 2 to 4 business days.
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Manufacturer Stock: We have transfers coming from the US Manufacturer warehouses every 3 weeks. Canadian customers can expect a delivery time of approximately 3 to 4 weeks from the date your order is placed, to the day the order will be delivered to your door.
For US and/or International customers, this item can be dropship from the manufacturer straight to your door.
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US Warehouse Stock: We have transfers coming from this US warehouse into Canada every 3 weeks. Canadian customers can expect a delivery time of approximately 3 to 4 weeks from the date your order is placed, to the day the order will be delivered to your door.
For US and/or International customers, this item can be dropshipped from this warehouse straight to your door.
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US Shipping Warehouse: This warehouse is only for shipping to our US customers, which means this item can dropship from this warehouse straight to your door.
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Out of Stock (Contact us to check availability): This means we either do not have live inventory for this manufacturer, this item is a special order from the manufacturer, or this can also mean that the product is on backorder at the manufacturer. If you would like a more precise ETA, please contact our sales team prior to placing your order.
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*** PLEASE NOTE: All Shipping and Delivery dates are estimated and can change at any time. We try our best to be as precise as possible, however, unforseen delays are completely out of our control.
Shipping
OverDosed Performance reserves the right to use any shipping method available. Shipping time estimates are for reference only. We set no "exact or specific" dates and or times. Unfortunately, delays do happen from time to time. We try our best to be as accurate as possible on delivery times, however, it's sometimes impossible to predict some delays beforehand. Some items may be out of stock or on backorder, so we kindly ask you to be patient. OverDosed Performance is not to be held liable for any delays due to the early or lateness of a product´s arrival. All orders ship via ground shipping, either using Canpar, Dicom, Purolator, UPS or FedEx. International orders are shipped via Air.
Cancellations
If you place an order and decide you want to cancel it within 24 hours, even if it's just a few minutes after the order is placed, you will be charged a 3% cancellation fee. NO EXCEPTIONS. Every cancellation is done only at OverDosed Performance discretion. Some special order items can not be cancelled. To ensure rapid service, all of our products are processed once we received payment. If you wish to cancel, we strongly urge you to contact our staff within 24 hours. A 3% cancellation fee will be charged. All cancellation orders after a 24hr period will be accessed a 5% cancellation fee. (This only applies to orders that are not already in transfer to our Canadian warehouse.) If the items you order were a special order and are already in transfer to our Canadian warehouse, then there will be a 20% restocking fee. NO EXCEPTIONS.
Returns
If you want to return or exchange a product that you ordered, you will need to contact OverDosed Performance first before sending the product back to us. OverDosed Performance must approve all returned items and will ask to please fill out our Return Form. Sending back a product without a Return Form will be refused. All Items must be in their original package and in "new/resalable" condition. For wheels, we can only accept a return if the wheels have NOT had any tires mounted/installed and are still brand new in the original boxes with all the original packaging. All Approved returns will be credited for "store credit only" NO EXCEPTIONS! Store Credit must be used within 14 Days of item´s return, or the credit will be lost! A 20% restocking fee will apply to all approved returned orders. OverDosed Performance is not responsible for shipping charges when returning a product.
