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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
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Description
1967-1972 Chevrolet and Exhaust Flowmaster Stainless SteelOverview: This Flowmaster American Thunder dual exhaust system is specifically designed for 1967 1972 Chevrolet and GMC K10, K15 K1500, K20, and K25 K2500 4wd trucks with V8 engines. The system is perfect for the person looking for an aggressive to moderate interior and exterior sound level. Starting at the Crossmember Back, the exhaust comes complete with a built in H pipe crossover for better exhaust scavenging, all mandrel bent 2. 50 inch stainless
Overview:
This Flowmaster American Thunder dual exhaust system is specifically designed for 1967-1972 Chevrolet and GMC K10, K15/K1500, K20, and K25/K2500 4wd trucks with V8 engines. The system is perfect for the person looking for an aggressive to moderate interior and exterior sound level. Starting at the Crossmember-Back, the exhaust comes complete with a built-in H-pipe crossover for better exhaust scavenging, all mandrel-bent 2.50-inch stainless steel tubing, a pair of Super 44 Series performance mufflers, and your choice of three tailpipe exits (Turndown behind rear tires, side exit behind rear tires, or straight out the back under the bumper). The system includes all hardware necessary for installation and is covered by our Lifetime Limited Warranty. Fits both short and long wheelbase trucks.
Features:
Specs:
Applications:
- 1967-1969 Chevrolet K10 Pickup 327 CID
- 1967-1967 Chevrolet K10 Pickup 283 CID
- 1968-1972 Chevrolet K10 Pickup 307 CID
- 1968-1969 Chevrolet K10 Pickup 396 CID
- 1969-1972 Chevrolet K10 Pickup 350 CID
- 1970-1972 Chevrolet K10 Pickup 402 CID
- 1967-1969 Chevrolet K20 Pickup 327 CID
- 1967-1967 Chevrolet K20 Pickup 283 CID
- 1968-1972 Chevrolet K20 Pickup 307 CID
- 1968-1969 Chevrolet K20 Pickup 396 CID
- 1969-1972 Chevrolet K20 Pickup 350 CID
- 1970-1972 Chevrolet K20 Pickup 402 CID
- 1967-1968 GMC K15/K1500 Pickup 327 CID
- 1967-1967 GMC K15/K1500 Pickup 283 CID
- 1968-1972 GMC K15/K1500 Pickup 307 CID
- 1968-1969 GMC K15/K1500 Pickup 396 CID
- 1969-1972 GMC K15/K1500 Pickup 350 CID
- 1970-1972 GMC K15/K1500 Pickup 402 CID
- 1967-1968 GMC K25/K2500 Pickup 327 CID
- 1968-1972 GMC K25/K2500 Pickup 307 CID
- 1968-1969 GMC K25/K2500 Pickup 396 CID
- 1969-1972 GMC K25/K2500 Pickup 350 CID
- 1970-1972 GMC K25/K2500 Pickup 402 CID
Emissions:
- This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
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
4.2 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Great for recovery
Flavor Name: Berry, Size: 30 Servings (8.0 Ounce) (Pack of 1)
Really helps with post work out recovery. I feel noticeably less sore when I take this after a workout. Definitely prefer the lemon flavor over the berry.
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Reviewed in the United States on April 28, 2026
★★★★★ 3
Great formula, but desperate for an unflavored option
Flavor Name: Berry, Size: 30 Servings (8.0 Ounce) (Pack of 1)
I’ve been incorporating Thorne’s Amino Complex into my daily stack, and from a nutritional standpoint, it’s hard to beat. The clinical dosing of essential amino acids is exactly what I’m looking for to support my recovery and fitness goals. Thorne is usually my go-to for purity and quality, and this product is no exception when it comes to the actual ingredients.
However, the flavor profile is a significant drawback. To be blunt: the flavors are just not good. They feel chemically and overly sweet, which makes it a chore to drink rather than a supplement I look forward to.
I would much prefer an unflavored and unsweetened version. Having the option to just mix the raw powders into water or my own beverage without the unnecessary flavorings and sweeteners would be a game-changer. If you’re sensitive to artificial tastes or just prefer a "cleaner" experience, the current options might be a struggle.
Pros:
High-quality amino acid profile.
Trusted brand with great sourcing.
Cons:
Flavors are unpleasant and too sweet.
No "naked" or unflavored option available.
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Reviewed in the United States on February 18, 2026
★★★★★ 5
Taste and Quality are Excellent!
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
Thorne has a reputation for high quality products so I thought I’d try this whey protein. It tastes really good! I find it easy to digest, and it dissolves easily. I plan to make this my go-to whey protein.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Definitely sweet but good mixed
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
The vanilla would be too sweet on it's own for me but with strawberries and spinach it's perfect.
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Reviewed in the United States on February 15, 2025
★★★★★ 1
Horribly ‘weird’ sweet flavor
Flavor Name: Vanilla, Size: 30 Servings (Pack of 1)
Horrible taste - synthetic sweetness than destroys my shakes. I bought Thorne because of its high quality but this is one of their products that won’t work for me. I’m struggling through the jar because it’s too expensive to waste. Using cacao powder, cinnamon & cardamom to try to tone down the overwhelming ‘sweet.’
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Reviewed in the United States on May 18, 2026