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Grand Rock

Grand Rock Pickup Smoke Stack Kits

http://www.grpipes.com/

Equip your truck with stand-out parts that are a cut above the rest.  Pure Diesel Power supplies a wide array of kits, components and modifiers for diesel trucks from leading American suppliers, including Grand Rock exhaust systems.  Grand Rock manufactures exhaust systems for America’s hardest working trucks and semis, making their stack kits the best in the business for high-performance modifications. 

Grand Rock kits are made of corrosion-resistant aluminized steel with USA-made double nickel chrome stacks.  Cheaper kits and stacks may warp and weather, and the chrome peels and corrodes over time, but Grand Rock enhancements are built to last.  Like all Pure Diesel Power’s products, Grand Rock exhaust kits aren’t made just for looks; they’re made for performance.  With smooth-flowing exhaust through larger pipes, modified exhaust systems reduce backpressure and enable higher volume flow, giving you enhanced speed, power and fuel mileage. 

Choose from a variety of truck stack kits including turbo-back single and dual kits, T-pipe kits and chrome stacks in Aussie, Turnout, Bull Hauler, Straight Cut and Mitre styles.  Order online or contact Pure Diesel Power for more information on any product.


From Grand Rock Grand Rock

4" Stack Pickup Truck T-Pipe Kit
By Grand Rock

The 4 inch T-Pipe sits in the bed, and only one hole needs to be cut in the bed of the truck.
It is designed to fit full-size Ford, Chevy, & Dodge pickup trucks.
This kit fits 4" OD Stacks.

Please allow 1-2 weeks for delivery.
Kits include everything needed to mount the stacks and connect to your existing exhaust system.
A section of flex pipe is included as is a reducer to connect to your existing exhaust.

Smaller exhaust pipe hookup sizes increase the price as we then include reducers & clamps. 

Kit includes bright stainless unistrap clamp to secure stacks
Quality AccuSealTM heavy gauge band clamps included in kits

Everything included except chrome stacks. Down Pipes, Muffler and Intermediate Pipe not included with these kits.

Under-bed T-pipes are not available, due to fuel tank clearance issues.


From Grand Rock Grand Rock

High Quality Dual Chrome Pickup Truck Smoke Stack Kit

By Grand Rock

These kits use a 4" T-Pipe that sits sits in the bed, and only one hole needs to be cut in the bed of the truck.

A 4" underbed 90 degree bend connects to your stock (or aftermarket) exhaust between the cab & truck bed.

A small section of stainless flex pipe goes between the 90 degree elbow and the existing exhaust on your truck, to allow the bed and cab to flex without causing damage to the exhaust.
Reducers are included for trucks that have 3" & 3.5" exhausts, so everything you need is included!

These stack kits sound great on Ford Powerstrokes, Dodge Cummins & Chevrolet/GM Duramax Diesel Pickups!

4" Chrome Stacks can be ordered in four styles, including: Mitre Cut, Straight Cut, & Turnout. Unchromed Stacks are also available, please call for pricing.

Under-bed T-pipes are not available, due to fuel tank clearance issues.

Please allow 2-3 weeks for delivery.
Kits include everything needed to mount the stacks and connect to your existing exhaust system.


36" Stacks are standard and protrude above the cab 1-2 inches in most cases, or about 46" above the bed floor.
48" Stacks are optional and the top of the stack will be about 58" above the bed floor.




From Grand Rock Grand Rock

4" Single Stack Pickup Truck S-Pipe Kit
By Grand Rock

The 4" S-Pipe sits in the bed, and only one hole needs to be cut in the bed of the truck. This allows you to mount a single 4" stack on the right side of the pickup bed.
The S-pipe kit is designed to fit full size Ford, Chevy, & Dodge pickup trucks.

This kit fits 4" OD Stacks, the tube has a 4" I.D..

Please allow 1-2 weeks for delivery.
Kits include everything needed to mount the stack and connect to your existing exhaust system.
A section of flex pipe is included as is a reducer to connect to your existing exhaust.

Smaller exhaust pipe hookup sizes increase the price as we then include reducers & clamps.

Kit includes bright stainless unistrap clamp to secure stack
Quality AccuSealTM heavy gauge band clamps included in kits

Everything included except chrome stacks. Down Pipes, Muffler and Intermediate Pipe not included with these kits.

Under-bed T-pipes are not available, due to fuel tank clearance issues.


From Grand Rock Grand Rock

4, 5, 6, or 7 Inch Dual Turbo-Back Stack Kit
01-06 Chevy/GM 6.6L Duramax Diesel, CLASSIC ONLY, NO LMM ENGINE
By Grand Rock

Gives your Chevy Duramx Diesel Pickup that "Big Rig" look!

  • Great flow-improved performance.
  • Functional-Routes exhaust fumes above and away from livestock, car haulers, and cargo where diesel smoke is unwanted.

Complete turbo-to-stack kit, aluminized 4" pipe with 5" in-bed s-pipe. (4 Inch stack kit only has 4" in bed s-pipe) Internal mufflers are also included, but do not have to be installed for proper mounting.
01-07 Chevy/GM 2500/3500 6.6L LB7 & LLY Duramax Diesels: 4" inch front-pipe with 4" pipe to stack s-pipe.
These kits will NOT fit the new body style LMM Duramax Diesels.
These kits do eliminate all stock mufflers & cat converters, for off road use only.

These kits include your choice of: aussie style stacks, mitre cut, bull hauler, straight-cut, or turnout.
Please note that Aussie & Bull-Hauler Stacks are NOT available in 4".

The selection of your stack size & style may affect the price as noted in the drop down options.

Kits include everything needed, including down-pipe, intermediate pipe, s-pipe, & all mounting hangers & hardware to mount the stacks.

36" Stacks are standard and protrude above the cab 1-2 inches in most cases, or about 46" above the bed floor.
48" Stacks are optional and the top of the stack will be about 58" above the bed floor.

Please select the size of the stack you wish to mount in the kit below so that we can include proper mouting hardware. Please remember that the bottom of your stack MUST be 5" O.D. to properly work with this kit.


Please allow 2-3 weeks for delivery.

Due to availability issues, we need to allow to up to 6 weeks delivery time on certain stack styles. Please call for availability before ordering.



From Grand Rock Grand Rock

There is a 2-3 day lead time on this part before item ships. 5" 90° 10"X 10" ID-OD Aluminized Elbow

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From Grand Rock Grand Rock

High Quality Dual Chrome Diesel Pickup Truck Smoke Stack Kit


These kits use a 5" T-Pipe that sits sits in the bed, and only one hole needs to be cut in the bed of the truck.

The 5" T Pipe necks down to 4" (unless ordered to connect to a 5" exhaust) and a 4" 90 degree bend connects to your stock (or aftermarket) exhaust between the cab & truck bed.

A small section of stainless flex pipe goes between the 90 degree elbow and the existing exhaust on your truck, to allow the bed and cab to flex without causing damage to the exhaust.
Reducers are included for trucks that have 3" & 3.5" exhausts, so everything you need is included!

These stack kits sound great on Ford Powerstrokes, Dodge Cummins & Chevrolet/GM Duramax Diesel Pickups!

5" Chrome Stacks can be ordered in four styles, including: Mitre Cut, Aussie, Bull Hauler, Straight Cut, & Turnout.
Unchromed Stacks are also available, please call for pricing.

Under-bed T-pipes are not available, due to fuel tank clearance issues.

Please allow 2-3 weeks for delivery.

Due to availability issues, we need to allow to up to 6 weeks delivery time on certain stack styles. Please call for availability before ordering.


Kits include everything needed to mount the stacks and connect to your existing exhaust system.

36" Stacks are standard and protrude above the cab 1-2 inches in most cases, or about 46" above the bed floor.
48" Stacks are optional and the top of the stack will be about 58" above the bed floor.

Aussie Stack


From Grand Rock Grand Rock

Grand Rock Hood Stack

Universal Competition Stacks and Kits:

Intended for Race/Competition Off-Road Use ONLY!  *Lowers your EGT's! Universal Grand Rock Hood Stack Kits and Hood Stacks are available in 5", 6" and 7". Hood Stack Styles include Mitre or Straight Cut 20 inch Hood Stacks in Chrome or Raw Finish, ready for you to paint any color you want! Grand Rock Universal Hood Stack Mounting Kit includes everything you need to mount the Grand Rock Hood Stack each sold separately.

Stack only does not include turbo pipe.

Image for reference only.

Grand Rock part number:  P5-20SBC

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From Grand Rock Grand Rock

Grand Rock Hood Stack

Universal Competition Stacks and Kits:

Intended for Race/Competition Off-Road Use ONLY!  *Lowers your EGT's! Universal Grand Rock Hood Stack Kits and Hood Stacks are available in 5", 6" and 7". Hood Stack Styles include Mitre or Straight Cut 20 inch Hood Stacks in Chrome or Raw Finish, ready for you to paint any color you want! Grand Rock Universal Hood Stack Mounting Kit includes everything you need to mount the Grand Rock Hood Stack each sold separately.

Stack only does not include turbo pipe.

Image for reference only.

Grand Rock part number:  S5-20SBC

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From Grand Rock Grand Rock

5" Stack Pickup Truck Smoke Stack T-Pipe Kit
By Grand Rock

The 5" T-Pipe sits in the bed, and only one hole needs to be cut in the bed of the truck. It is designed to fit full-size Ford, Chevy, & Dodge pickup trucks.

This kit fits 5", 6" or 7" stacks that have an base O.D. of 5", the T-pipe stack tubes have a 5" I.D.

Please allow 1-2 weeks for delivery.
Kits include everything needed to mount the stacks and connect to your existing exhaust system.
A section of flex pipe is included as is a reducer to connect to your existing exhaust.

Smaller exhaust pipe hookup sizes increase the price as we then include reducers & clamps.

Kit includes bright stainless unistrap clamp to secure stacks
Quality AccuSealTM heavy gauge band clamps included in kits

Everything included except chrome stacks. Down Pipes, Muffler and Intermediate Pipe not included with these kits.

These T-Pipe kits are 5" and neck down to 4" just as they go through the floor of the bed.
However, if you select the 5" exhaust option, the full kit, elbow, and flex pipe is 5".

Please select the size of the stack you wish to mount in the kit below so that we can include proper mouting hardware. Please remember that the bottom of your stack MUST be 5" O.D. to properly work with this kit.


Under-bed T-pipes are not available, due to fuel tank clearance issues.


From Grand Rock Grand Rock

High Quality Dual Chrome Diesel Pickup Truck Smoke 6" Stack Kit Kits include everything needed to mount the stacks and connect to your existing exhaust...


From Grand Rock Grand Rock

Grand Rock Hood Stack

Universal Competition Stacks and Kits:

Intended for Race/Competition Off-Road Use ONLY!  *Lowers your EGT's! Universal Grand Rock Hood Stack Kits and Hood Stacks are available in 5", 6" and 7". Hood Stack Styles include Mitre or Straight Cut 20 inch Hood Stacks in Chrome or Raw Finish, ready for you to paint any color you want! Grand Rock Universal Hood Stack Mounting Kit includes everything you need to mount the Grand Rock Hood Stack each sold separately.

Stack only does not include turbo pipe.

Image for reference only.

Grand Rock part number: P6-20SBC

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