[TX] Original Hypertech chip 5.7 auto part # 121321

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Aug 7, 2025 | 05:37 PM

topduarte

Thread Starter

Supreme Member

iTrader: (10)

Joined: May 2001

Posts: 1,431

Likes: 505

From: Pflugerville, Texas

Car: 92 Heritage Camaro Z28

Engine: 350 TPI

Transmission: auto

Axle/Gears: 3.23 Limited Slip

Original Hypertech chip 5.7 auto part # 121321

SOLD.

Price drop.

Brought this about a year ago but decided to stay stock.
Original Hypertech chip from 1991 part # 121321. Never used.

$60 shipped CONUS. I take USPS money order or PayPal as friends and family.

Feel free to pm me here or text me at 512 947-5537 or email me with any questions or if you need more pics.

Thanks Manny

Last edited by topduarte; Dec 21, 2025 at 07:07 PM.

Oct 15, 2025 | 08:47 PM

topduarte

Thread Starter

Supreme Member

iTrader: (10)

Joined: May 2001

Posts: 1,431

Likes: 505

From: Pflugerville, Texas

Car: 92 Heritage Camaro Z28

Engine: 350 TPI

Transmission: auto

Axle/Gears: 3.23 Limited Slip

Re: Original Hypertech chip 5.7 auto part # 121321

Price drop bump

Dec 5, 2025 | 09:16 PM

topduarte

Thread Starter

Supreme Member

iTrader: (10)

Joined: May 2001

Posts: 1,431

Likes: 505

From: Pflugerville, Texas

Car: 92 Heritage Camaro Z28

Engine: 350 TPI

Transmission: auto

Axle/Gears: 3.23 Limited Slip

Re: Original Hypertech chip 5.7 auto part # 121321

Bump

Dec 21, 2025 | 04:49 PM

Thirdgen4me2

Junior Member

Joined: Feb 2024

Posts: 30

Likes: 8

Car: 91 Z28 / 86 Iroc

Engine: L98 / TPI 305

Transmission: 700r4 / 700r4

Axle/Gears: 3.23 / 2.77?

Re: Original Hypertech chip 5.7 auto part # 121321

I’ll take it. Ill send you a pm

Jan 5, 2026 | 12:59 PM

Thirdgen4me2

Junior Member

Joined: Feb 2024

Posts: 30

Likes: 8

Car: 91 Z28 / 86 Iroc

Engine: L98 / TPI 305

Transmission: 700r4 / 700r4

Axle/Gears: 3.23 / 2.77?

Re: Original Hypertech chip 5.7 auto part # 121321

i dont know how to comment in the itrader rankings for this transaction so I will here. Topduarte was very responsive and despite the holidays packaged, shipped and followed up on everything promptly. It was a first class transaction experience. Thanks again Manny!🫡