P1-Underground Tuning

P1-Underground Tuning

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P1 Underground Tuning is a full service location that completes installs on all cars and trucks including engine swaps, go fast parts, long tube headers, etc.

We are located at 808 Jonesboro Rd West Monroe, LA 71292

Come on out and see us!

08/06/2026

:)

08/06/2026

The RCA100 long tube headers are delayed a few weeks fellas. I spoke with Javi this evening and he has about 150 sets coming.

:)

Photos from P1-Underground Tuning's post 08/05/2026

1320 Ported Cobra Jet for sale.

Gen 1, 2, 3 or 4. If its for a 4, I have Boschma's TB adapter also.

This unit does not come with a Throttle Body.

Please message the page if interested.

Photos from P1-Underground Tuning's post 08/04/2026

Here is a sneak peak on what we are bringing to Fords at the Shore. Only difference, itll be 2 of them......to be continued.

08/03/2026

We are closed August 4th from 1130am until the following day for a training seminar.

No logs will be updated during that time. If you are in need of anything, please email [email protected]

Thanks

Photos from P1-Underground Tuning's post 08/01/2026

It begins.......

Photos from P1-Underground Tuning's post 07/31/2026

Welp, we had fun. What started as just a regular old S650 turned into a ported s650 intake manifold, over to a ported 1320 Cobra Jet. We made huge power. Loved it, slapped it on PCMtec for tuning on the wheel, but, now the games are over...

In the next 2 weeks, we will be prepping for Fords at the Shore.

Bobby's GT350 is going to get the Cobra Jet now. His car already loves high rpm.

Marc's car is going with the Predator Swap. We are waiting on the Carbon Fiber hood to get here and hope it arrives next week or the week after at the latest.

Its go time.

07/29/2026

I keep seeing dyno vs street tune for someone. What is your preference and why? Me personally, I would say both. I love seeing the numbers and it is much easier to dial in someone in on one of our dyno's rather than dialing in on the street.

Does it make a difference? Absolutely. If the dyno operator and tuner is good at what they do, they can find power in all aspects of a tune file. So, it takes the issue of Johnny Law stopping Speed Lightning. :)

What are your thoughts? I dont think there is 1 correct answer in this, but, I am definitely curious.

One more question. Would you like to see our shop open on Saturday's for not just installation, but dyno tuning as well?

Thanks

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Address


808 Jonesboro Road
Monroe, LA
71292

Opening Hours

Monday 12pm - 8pm
Tuesday 12pm - 8pm
Wednesday 12pm - 8pm
Thursday 12pm - 8pm
Friday 12pm - 6pm
Saturday 9am - 5pm