Testimonials & Reviews

5.0
Based on 422 reviews
5 star
98
98%
4 star
2
2%
3 star
0%
2 star
0%
1 star
0%

Customer Images

Image #1 from Rich Klein
Image #1 from Patrick Baker
Image #2 from Patrick Baker
Image #1 from Seth Davis
Image #1 from Craig Villacorte
Image #2 from Craig Villacorte
Image #1 from Kyle
Image #1 from matt tuell
Image #2 from matt tuell
Image #1 from Gary Barr
Image #1 from Rich Klein

Rich Klein

Fast service and now my bike runs better than ever, how cool is that!?! 😎👍

(0) (0)
Image #1 from Patrick Baker

Patrick Baker

This is the third top end kit I’ve bought from South Bay! I love the organized packaging, fast shipping, reasonable pricing and knowing that I’m spending my money with a local, hard working family that are part of the sport!

(0) (0)
Image #2 from Patrick Baker

Patrick Baker

This is the third top end kit I’ve bought from South Bay! I love the organized packaging, fast shipping, reasonable pricing and knowing that I’m spending my money with a local, hard working family that are part of the sport!

(0) (0)
Image #1 from Seth Davis

Seth Davis

Great product. Shipped it out and within 4 days got my ecu back. Love the tune lots of power. They also gave me a sucker🤣

(0) (0)
Image #1 from Craig Villacorte

Craig Villacorte

Awesome product well engineered thanks! Steve! Well done

(0) (0)
Image #2 from Craig Villacorte

Craig Villacorte

Awesome product well engineered thanks! Steve! Well done

(0) (0)
Image #1 from Kyle

Kyle

This kit was worth every penny and was the best $ I've spent on a bike other than suspension. As TSP mentions, the factory tune on these TBI's are just OK and their cylinder head with tune really does make the bike feel like a 280. My XC-W had a real blubbery feeling down low and at part throttle. That is now gone and on the green map the bike runs like a scalded ape. The soft white map is perfect for slower single track and what not, but still feels worlds better than the stock white map. I have to say it is now the cleanest running smoker I've ever ridden. I also highly recommend going the ERM route versus the mail in ECU flash as it avoids downtime and the ERM has so many other useful features. It's a gauge monitor, trouble code reader, can reset the TPMS and it's obviously a handheld tuner. Highly, highly recommend this kit! The service from Steve at South Bay was awesome as well. If you have any questions, don't hesitate to ask them!

(0) (0)
Image #1 from matt tuell

matt tuell

I was skeptical but it really made a difference with Low RPM grunt. Very happy and love the fast shipping like always.

(0) (0)
Image #2 from matt tuell

matt tuell

I was skeptical but it really made a difference with Low RPM grunt. Very happy and love the fast shipping like always.

(0) (0)
Image #1 from Gary Barr

Gary Barr

I have been running the TSP low compression head in extreme type terrain and was very happy with it. Lately though I’ve gone back to doing some hare scrambles and was looking for a little more low end hit so I gave the medium compression insert a try. Just what I was looking for but still smooth enough for the nasty stuff. Very happy with it and love the option of going back and forth with both inserts.

(0) (0)
Image #1 from Rich Klein
Image #1 from Patrick Baker
Image #2 from Patrick Baker
Image #1 from Seth Davis
Image #1 from Craig Villacorte
Image #2 from Craig Villacorte
Image #1 from Kyle
Image #1 from matt tuell
Image #2 from matt tuell
Image #1 from Gary Barr
1-10 of 414 reviews
  1. RK

    Gotta have spark, and this is a good one!

    (0) (0)
  2. RK

    Love it!

    (0) (0)
  3. RK

    Fast service and now my bike runs better than ever, how cool is that!?! 😎👍

    Image #1 from Rich Klein
    (0) (0)
  4. DH

    One of those mods that KTM should install by default! Makes it so much easier to get the air and idle balanced.

    (0) (0)
  5. DH
    (0) (0)
  6. DH

    The TSP ERM is definitely a must-have for anyone who owns a TPI/TBI but misses tuning their carb to fit their riding. Thanks South Bay for the quick shipping and awesome support!

    (0) (0)
  7. SA
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  8. SA
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  9. SA

    Great guys to work with. Responsive and knowledgeable. Thanks!

    (0) (0)
  10. PM

    Great upgrade to my 23 250xc

    (0) (0)
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