LSXRT
Injection Molded Polymer Intake
Cathedral-Port Head Equipped Applications
Designed specifically for GM 4.8/5.3/6.0L cathedral port cylinder head-equipped truck engines and cathedral port LS1, -2, -6 applications where hood clearance is not a concern, the FAST™ LSXRT™102mm Intake Manifold follows the path chartered by the original FAST ™ LSX™ Gen III Intake by featuring a modular design that allows for easy porting and disassembly and a runner design that yields an incredible 25 peak horsepower gain over the stock intake, on a stock 6.0L engine with a Big Mouth 102mm Throttle Body™. Extensive testing led to a runner design that is longer and less restrictive and gives the user the ability to remove individual runners from the manifold for modification.
The LSXRT™ is constructed from a proprietary precision injection molded polymer which offers many benefits, including lighter weight, greater strength and lower heat soak propensity. While it features a 102mm air inlet that was designed for the FAST™ Big Mouth 102mm Throttle Body™, it can also be used with OEM electronic 78/90mm or aftermarket 90/92mm throttle bodies (three-bolt electronic throttle bodies require an adapter). Other features include integrated nitrous bungs and a precise bolt-on fit that permits the use of factory accessories and OEM fuel/emission connections without adjustments or clearance issues.
25 HP gain when used w/ 102mm Big Mouth Throttle Body™ on a stock 6.0L truck engine
Constructed from proprietary precision injection molded polymer; Lighter than aluminum w/ lower heat soak propensity & greater strength over stock molded intake
Innovative multi-layer design w/ removable runners for quick & easy disassembly & porting
Integrated nitrous bungs; plug-and-play w/ ZEX™ LSX™ Direct Port Nitrous System
Patented Design - U.S. Patent No 8,567,366
| 50-State Legal CARB EO #D-279-9 | Throttle Body / Fuel Rail Type |
| ‘99-‘02 Silverado/Sierra 4.8/5.3/6.0L | 3-Bolt, Cable Throttle Body / Round Plastic Fuel Rails |
| ‘02-‘06 Silverado/Sierra 4.8/5.3/6.0L | 3-Bolt, Electronic Throttle Body / Round Plastic Fuel Rails |
| ‘07 Silverado/Sierra (“Classic”) 4.8/5.3/6.0L | 3-Bolt, Eletronic Throttle Body / Round Plastic Fuel Rails |
| ’07-‘13 Silverado/Sierra 4.8/5.3L | 4-Bolt, Eletronic Throttle Body / Square Metal Fuel Rails |
| ’00-’02 Tahoe/Yukon/Suburban 4.8/5.3/6.0L | 3-Bolt, Cable Throttle Body / Round Plastic Fuel Rails |
| ’02-’06 Tahoe/Yukon/Suburban 4.8/5.3/6.0L | 3-Bolt, Electronic Throttle Body / Round Plastic Fuel Rails |
| ’06-’09 Trailblazer SS1 LS2 (6.0L) | 4-Bolt, Electronic Throttle Body / Square Metal Fuel Rails |
| ’07-’14 Tahoe/Yukon/Suburban 4.8/5.3/6.0L | 4-Bolt, Electronic Throttle Body / Square Metal Fuel Rails |
| *Drive-by-wire = Electronic Throttle Body / Drive-by-cable = Mechanical/Cable Throttle Body | |
APPLICABLE THROTTLE BODIES
FAST™ 102mm CNC Throttle Body2 (Drive-by-Cable)3
OEM/Stock 3-Bolt Throttle Body w/ FAST™ Adaptor Plate
OEM/Stock 4-Bolt Throttle Body
APPLICABLE FUEL RAILS
OEM/Stock Round Plastic Fuel Rails w/ FAST™ Adaptor Kit
OEM/Stock Square Metal Fuel Rails w/ FAST™ Adaptor Kit
1. Chevy Trailblazer SS requires some cowl modifications.
2. FAST™ throttle body requires GM purge solenoid #12581282 (Not sold by FAST™)
3. Drive-by-wire applications must re-use OEM throttle body or purchase aftermarket drive-by-wire throttle body.
4. Fuel line adaptor(s) required to connect to OEM fuel line(s).
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
If you are not 100% satisfied with your purchase, you can either return your order for a full refund or exchange it for something else, for up to 60 days from the delivery/pickup date. Following are the specific time periods of our return and exchange policy:
Drop Ship Items and Garage Sale Items are not eligible for return.
*Open-box electrical & special-order/custom-order components are not eligible for returns along with drop ship and garage sale items as stated above.*
Order Cancellations: Special order items are subject to order cancellation fees (2-5%). This includes engines, short blocks, and any items that require machine work.
Refunds (if applicable)
Once your return arrives at our warehouse, please allow 3-5 business days for proper inspection, processing, and refunds to be issued. Please note; we will release your funds as soon as the return process is completed, but your financial institution can hold funds for 1-5 business days after we release them.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at amsracing@gmail.com.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Exchanges (if applicable)
We only replace items if they are defective or damaged. If you need to exchange it for the same item, call us at 318-222-7889 and send your item to: AMS Racing, 1020 Barksdale Blvd., Bossier City LA 71111, United States.
Warranty
AMS Racing is not responsible for any labor charges associated with a defect, a failure or improperly installed component. The installer will be liable to inspect and review all components before the installation process. If a defect is found, we will work with the manufacturer directly to have it replaced.
Gifts
If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.
If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.
Shipping
To return your product, you should mail your product to: AMS Racing, 1020 Barksdale Blvd., Bossier City LA 71111, United States
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
Depending on where you live, the time it may take for your exchanged product to reach you, may vary.
If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.
Free Shipping on Qualified Orders
Within the Continental US
Excludes Freight Shipments ie. Engines
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