# F1 tuning claims 30% hp increase, 40% tq increase, you believe it?

**URL:** https://forums.speedlife.net/t/f1-tuning-claims-30-hp-increase-40-tq-increase-you-believe-it/255754
**Category:** Shift518 Automotive
**Created:** [November 26, 2010, 5:51pm UTC](https://forums.speedlife.net/t/f1-tuning-claims-30-hp-increase-40-tq-increase-you-believe-it/255754 "2010-11-26T17:51:31Z")
**Posts on this page:** 1
**Showing post:** 31

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### Author: ![jdaniels](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jdaniels/32/6399_2.png) [@jdaniels](https://forums.speedlife.net/u/jdaniels)
#### Post date: [November 27, 2010, 5:47pm UTC](https://forums.speedlife.net/t/f1-tuning-claims-30-hp-increase-40-tq-increase-you-believe-it/255754/31 "2010-11-27T17:47:13Z")

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> [@FS Mission H-350 Rollerblades](https://forums.speedlife.net/t/fs-mission-h-350-rollerblades/37507/5):
>
> Soo you think Autohaus’s 335 was a fake? He dyno’d it stock and with an f1 tune, exhaust and intake and got a 73whp gain… exhaust might have been good for 4-6hp and intake another 3-4, wherd the rest of the gains come from?

Not fake, he added exhaust and intake which are usually pretty substantial on a **TURBO** vehicle… the fuel and timing are probably barely touched, but they add boost pressure because it’s controlled by the ecu. I bet that exhaust and intake alone were worth close to 20whp on their own.

I am just saying, with an ECU as sensitive as a BMW DME that re-learns you will be hard pressed to find ANY (substantial) gains ESPECIALLY WITH A MAIL ORDER TUNE.

Save your money, bro… mail order tunes are a joke.

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