3580990C1 International Bus Long Pipe 4" x 141.5" OD-OD
SB12-0990IH International Bus Long Pipe 4" x 141.5" OD-OD
We offer the largest variety of International Bus exhaust systems for sale online.
All of our International bus exhaust systems deliver the exact same performance that the OEM offers, but our International Bus Exhaust Parts are sold at a much lower price.
Aftermarket Bus Exhaust systems are designed and fabricated in the USA.
We make the online buying process easy for you. Simply add the item to your cart and check out on our ULTRA secure Payment processor. We ship the exhaust parts direct to you.
Browse the Catalog below by Clicking on the Picture.
Don't pay full retail for your International Bus or Truck Exhaust!!
Shop online with us and SAVE!!
Grand Rock 1-Year Warranty
This product is covered by a 1-year warranty from the date of purchase.
In the rare event that a product does not perform as expected, Grand Rock warrants its products against failure due to defects in materials and workmanship for the period specified under Terms and Conditions for the particular part. Grand RockÂ’s obligation under this warranty covers replacement of the failed part, including transportation charges. Grand Rock is not responsible for labor costs. Please note that, due to the higher heat output of Emissions Components, Grand Rock cannot warrant the Chrome Plating for any item installed on any truck made after 2007.
The Length of Warranty for replacement parts provided under warranty coverage is the balance of the warranty period reÂmaining on the part being replaced. It is important that the customer handles, stores, and installs all products properly. This warranty does not cover failure due to misapplication, misuse, abuse, neglect, rust through and corrosion (muffler), imÂproper service practices or non-approved modification. If you have any questions about proper handling, storing or installation do not hesitate to contact Grand Rock.