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Two Step Performance

4.5 (123)

Stage 1 to Stage One+ UPGRADE for the 2017-2020 Si (Existing Stage 1 Owners Only)

Name: Two Step Performance Stage 1 to Stage One+ UPGRADE for the 2017-2020 Si (Existing Stage 1 Owners Only) - Stage 1 to Stage One+ UPGRADE for the 2017-2020 Si (Existing Stage 1 Owners Only)
Brand: Two Step Performance
SKU: 34529222197380
Price: 99.99 USD
Availability: InStock
Rating: 5 (13 reviews)

4.5 (1,234)

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Black

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Existing TSP Stage 1 Si tune owners can use this product listing to upgrade to our new Stage One+ tune at a discounted rate! This is eligible to anyone that has purchased the TSP Stage 1 tune directly from us, either as a standalone tune...

Reviews

5.0

17 ratings

Absolutely worth it

Just for the idle fix alone, worth it. I have the lower mount insert and the vibration was so awful. Smooth as can be now, and the power across the board feels bumped up. Not like going from stock to stage 1, but a definite increase. If you have any motor/trans mount mods, do it.

Matthew · August 26, 2024

Great best tune for 1.5t if you don’t want flex fuel

Travis · June 27, 2024

Fantastic

Have been running the TSP Stage One tune that I got with my Ktuner about 3 years ago up until I upgraded to the Stage One+ about a week or so ago. I honestly regret that I didn't upgrade sooner. Stage One was great don't get me wrong but you can really tell the One+ has been refined especially when it comes to the throttle mapping, WOT shifting seems a lot smoother from my limited experence testing it out too.

Brandon · April 1, 2024