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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
COMP Cams Camshaft CBVI 299Th R7 ThumperDesigned to deliver an aggressive, hard hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain
Designed to deliver an aggressive, hard-hitting exhaust note at idle, the Thumpr camshaft series from COMP Cams also delivers excellent horsepower gains and a broad torque curve. A perfect choice for muscle cars and street rods, the Thumpr series' early intake valve opening and long exhaust duration create optimum overlap for that race car idle. The Thumpr grinds all require an aftermarket torque converter and lower gear ratio to ensure the drivetrain always puts the engine in its powerband. Additionally, Thumpr camshafts typically deliver reduced vacuum at idle, making a vacuum canister, pump or hydroboost a requirement for vehicles running power brakes.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1996-1997,1999-2000 | Chevrolet | C2500 | Base |
| 1996-1998 | Chevrolet | C2500 | Cheyenne |
| 1999-2000 | Chevrolet | C2500 | LS |
| 1996-1998 | Chevrolet | C2500 | Silverado |
| 1998 | Chevrolet | C2500 | WT |
| 1996-1999 | Chevrolet | C2500 Suburban | Base |
| 1996-1999 | Chevrolet | C2500 Suburban | LS |
| 1996-1997 | Chevrolet | C2500 Suburban | LT |
| 1996-1997,1999-2000 | Chevrolet | C3500 | Base |
| 1996-1998 | Chevrolet | C3500 | Cheyenne |
| 1999-2000 | Chevrolet | C3500 | LS |
| 1996-1998 | Chevrolet | C3500 | Silverado |
| 1996-2000 | Chevrolet | Express 3500 | Base |
| 1996-2000 | Chevrolet | Express 3500 | LS |
| 1996 | Chevrolet | G30 | Beauville |
| 1996 | Chevrolet | G30 | Chevy Van |
| 1996 | Chevrolet | G30 | Hi-Cube |
| 1996 | Chevrolet | G30 | Sportvan |
| 1996-1997,1999-2000 | Chevrolet | K2500 | Base |
| 1996-1998 | Chevrolet | K2500 | Cheyenne |
| 1999-2000 | Chevrolet | K2500 | LS |
| 1996-1998 | Chevrolet | K2500 | Silverado |
| 1998 | Chevrolet | K2500 | WT |
| 1996-1999 | Chevrolet | K2500 Suburban | Base |
| 1996-1999 | Chevrolet | K2500 Suburban | LS |
| 1996-1997 | Chevrolet | K2500 Suburban | LT |
| 1996-1997,1999-2000 | Chevrolet | K3500 | Base |
| 1996-1998 | Chevrolet | K3500 | Cheyenne |
| 1999-2000 | Chevrolet | K3500 | LS |
| 1996-1998 | Chevrolet | K3500 | Silverado |
| 1996-1999 | Chevrolet | P30 | Base |
| 1996-2000 | GMC | C2500 | Sierra SL |
| 1996-2000 | GMC | C2500 | Sierra SLE |
| 1996-2000 | GMC | C2500 | Sierra SLT |
| 1996-1999 | GMC | C2500 Suburban | Base |
| 1996-1999 | GMC | C2500 Suburban | SLE |
| 1996-1999 | GMC | C2500 Suburban | SLT |
| 1996-2000 | GMC | C3500 | Sierra SL |
| 1996-2000 | GMC | C3500 | Sierra SLE |
| 1996-2000 | GMC | C3500 | Sierra SLT |
| 1996 | GMC | G3500 | Magnavan |
| 1996 | GMC | G3500 | Rally |
| 1996 | GMC | G3500 | Rally Camper Special |
| 1996 | GMC | G3500 | Rally STX |
| 1996 | GMC | G3500 | Vandura |
| 1996 | GMC | G3500 | Vandura Special |
| 1996-2000 | GMC | K2500 | Sierra SL |
| 1996-2000 | GMC | K2500 | Sierra SLE |
| 1996-2000 | GMC | K2500 | Sierra SLT |
| 1996-1999 | GMC | K2500 Suburban | Base |
| 1996-1999 | GMC | K2500 Suburban | SLE |
| 1996-1999 | GMC | K2500 Suburban | SLT |
| 1996-2000 | GMC | K3500 | Sierra SL |
| 1996-2000 | GMC | K3500 | Sierra SLE |
| 1996-2000 | GMC | K3500 | Sierra SLT |
| 1996-1999 | GMC | P3500 | Base |
| 1996-2000 | GMC | Savana 3500 | Base |
| 1996-2000 | GMC | Savana 3500 | SLE |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Best non-slip no show sock!
Size: 6-10, Color: Black
I love these socks! I wear them mostly with my slip on vans. The are thin so your feet can breathe (I hate thick socks). They have a grip on the heal so that they don't slip off of your feet, and it actually works! My only negative about these socks would be that if you have bigger than a size 8 foot, I would not purchase them because they do run a bit small. I wear a size 7 and they fit perfectly! They do look very tiny upon unpacking, but they stretch to the according size. I would also recommend letting them air dry after washing them and not putting them in the dryer. The first pair I purchased, I made the mistake of drying them and they shrank to an unbelievably small size. I've had my second set of socks for over 4 months now and have not had any problems since Ive been air drying them. I have not encountered any problems with them tearing as other have stated. Even though these are thin socks, they seem to be made quite well in my opinion.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 5, 2022
★★★★★ 5
I buy these again and again through the years!
Size: Medium, Color: Austin Brown Assorted (6-pairs)
Love these. After a year or two I wear holes in the bottoms because I wear them so much. Worth the little bit higher price because of the fit and comfort. Love how they are truly no show
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 18, 2025
★★★★★ 4
Good quality but tight on toes
Size: 6-10, Color: White/Assorted
These are great socks that stay in place, but they scrunch my toes together like crazy. My feet are normal width. When I first started wearing them I noticed my feet would ache after an hour or two.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 5
My New Favorite Socks
Size: 6-10, Color: Halo Gray/Assorted
These have quickly become mine and my mom's favorite socks. We wear them with tennis shoes, Hey Dudes, and more. The fabric is incredibly soft and comfortable, they do not budge/fall in my shoe, and are extremely well made. I have become so attached to these socks, that I no longer want any other brand.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 4, 2025
★★★★★ 5
Fit is great!
Size: 6-10, Color: Halo Gray/Assorted
These socks fit perfectly and never slip!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
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