SKU: 82117325145

Kline Innovation BMW M5/M8 2021+ 100cell cat pipe set

Sale price$1567.35 Regular price$1741.50
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

Kline Innovation BMW M5/M8 2021+ 100cell cat pipe setTHE SOUND Replacement of the stock 600cpsi catalysts, with either high flow HJS cores, or de cat pipes, opens up the sound significantly, as well as drastically improving turbo spool for increased power, and reduced spool time. This coupled with the twin 70mm dual oversized down pipes, allows the engine to reach its full potential. The addition of a 20 degree x pipe to the center section, raises the pitch of the exhaust, complementing the inline 6

THE SOUND

Replacement of the stock 600cpsi catalysts, with either high flow HJS cores, or de-cat pipes, opens up the sound significantly, as well as drastically improving turbo spool for increased power, and reduced spool time. This coupled with the twin 70mm dual oversized down pipes, allows the engine to reach its full potential.

The addition of a 20 degree x pipe to the center section, raises the pitch of the exhaust, complementing the inline 6 scream, with a more visceral sonic experience. we also offer the option of a resonated (silenced) or non-resonated center section, to suit sound requirements.

The rear silencer section, working with the cars stock electronic actuated valve system, becomes completely freeflow on valve open, bypassing the silencer for optimum performance, and aggressive sound. under valve closure, exhaust gases are diverted through a series of chambers and acoustic filled section, tuned towards low rpm torque, and a very quiet volume at cruising speeds.

The rear section is finished off with a set of either, F1 grade pre preg, carbon fiber, or Inconel double walled tails.

THE SPECIFICS

Cross Sections

Downpipes and center, 70mmOD dual.

Rear section, 70mm dual pipe (valve open), dual 57mm (valve closed), chosen for a balance of fast turbo spool, torque, and peak power.

Materials

Available in standard 304 grade stainless steel
Inconel 625 formula one grade material

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 82117325145

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4.0 ★★★★★
Based on 7 reviews
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A
Verified Purchase
Amazon Customer
Lexington, US
★★★★★ 1
Sole separation
Size: 3 Big Kid, Color: Black/Orange, Size: 3 Big Kid, Color: Black/Orange
I really dont like to write reviews, let alone a negative one. Have had the shoe 1 month and the out sole on both shoes are peeling up. Normally we have had great success with saucony shoes for my boys. But this one we haven't had good luck. I have been super gluing the soles back down everything they peal up. Hopefully this is just a 1 off incident. Both side of one shoe and a large chunk of the heal on the other. You can see the glue marks and separation in pictures.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2025
B
Verified Purchase
BoysGrandma
Charlottesville, US
★★★★★ 5
Will last!
Size: 5.5 Big Kid, Color: Black/Orange
Done wasting money on cheap shoes that fall apart! My grandson loved the colors and I like the durability. This is a great brand. Fits great and will last!
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Reviewed in the United States on August 20, 2025
M
Melodic Maven
Massapequa, US
★★★★★ 5
No tying necessary
Size: 1 Little Kid, Color: Fuchsia, Size: 1 Little Kid, Color: Fuchsia
I ordered a kids size 1 for my child, and so far, I’ve been really happy with these shoes. Here’s what I like: ✅ Stylish design and comfortable fit. My daughter loves wearing these. ✅ They don’t show scuffs or scratches easily. ✅ The color is what I expected from the item pictures and it’s really cute. ✅ The Velcro straps make these easy to get off and put on. ✅ There’s a piece of Velcro on the tongue to help keep it in place. Really smart. ✅ The seams have not pulled apart and overall, these seem to be really well made. They have offered good support for my child’s feet, and a shoe that my child can put on by themselves is a win for me!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
J
Jan
Boise, US
★★★★★ 5
Durable girls sneakers
Size: 1 Little Kid, Color: Fuchsia, Size: 1 Little Kid, Color: Fuchsia
These Saucony girls sneakers in fuchsia are great. The design and coloring are fun and vibrant and the cushioning on the insole is good with just enough bounce. The material and construction seem durable. The Velcro strap secures in two places so you get a snug fit without the shoe “tongue” moving around. The sizing seems true to size. Overall these are a very solid, comfortable and functional pair of sneakers. $47, the current price, is about the price for similar products these days.
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Reviewed in the United States on May 24, 2026
K
Verified Purchase
Kimberlie Carrell
Grantham, US
★★★★★ 4
Great shoes but seem to run bigger than other styles of Saucony
Size: 4 Wide Big Kid, Color: Navy/Pink
We pretty much stick with one or two brands. I have a kiddo with wide feet, who recently wore out her size 3 wides (big kid) in another pair of Saucony shoes, but she was also right at the end of the shoe, so I went with a whole size up. She picked these. The size 4's are enormous, so we had to pick another style in a 3.5w, as these didn't have 1/2 sizes and will hold on to these for fall. I picked up another brand in 4W that actually fit really well now, but they are not as heavy duty as these. I'm hoping the next style in a 3.5 isn't too small. Love these shoes, but the sizing on them feels less and less predictable. Compared to most shoes I have always had to size down in these, but now even between styles in their brand.n
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Reviewed in the United States on May 15, 2026

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