TPIS ??
From what I've heard ..yes. They are way too expensive though considering it only takes a few bucks to make one. If you have several mods done to your car expect to pay around $450.
Another option, Performance Resource (http://www.performanceresource.com)
I have seen cold hard data on PR and it was impressive.
They'll burn you a custom one for $400.
------------------
'92 Formula
305 TPI
Mods: SLP catback,SLP air foil,ported plenum,Crane AFPR (49psi),MSD6AL,homemade cold air,K&Ns,3:73s
Another option, Performance Resource (http://www.performanceresource.com)
I have seen cold hard data on PR and it was impressive.
They'll burn you a custom one for $400.
------------------
'92 Formula
305 TPI
Mods: SLP catback,SLP air foil,ported plenum,Crane AFPR (49psi),MSD6AL,homemade cold air,K&Ns,3:73s
Supreme Member

Joined: Aug 1999
Posts: 2,441
Likes: 1
From: sweden
Car: GTA -89
Engine: Blown 415"
Transmission: 4L80E
Axle/Gears: Strange 12-bolt
I have good exp. with their PROM level 5 but they cost plenty of $$$$....
------------------
GTA -89:Free flow muffler,dual 3" HF cats, Edelbrock headers, Vette heads, 1.52 RR 7/16, ZZ-9 cam, Big Mouth, AS&M LTB, ported plenum, 52 TB, MSD 6AL, TPIS level V prom, Mod .MAF, Superior shift-kit and some minor mods. and more to come!
http://www.itv.se/tacs/members_cars/m279/m279.html (Swedish Trans Am Club)
------------------
GTA -89:Free flow muffler,dual 3" HF cats, Edelbrock headers, Vette heads, 1.52 RR 7/16, ZZ-9 cam, Big Mouth, AS&M LTB, ported plenum, 52 TB, MSD 6AL, TPIS level V prom, Mod .MAF, Superior shift-kit and some minor mods. and more to come!
http://www.itv.se/tacs/members_cars/m279/m279.html (Swedish Trans Am Club)
i've actually heard bad things about them. I would first go to Ed Wright (did not hear too great of things either) but at least he has full throttle programming and a 30 day guarrantee, so if you dont like it, send it back. Who else does that? no one i know of.
But i just got a level 4 prom for my car from TPIs. Cost 450. with lifetime guarantee. can't beat that. and i've had no problems with it. car runs extremely strong and i get 18mpg on highway with a 350 with melling cam.
Supreme Member
Joined: Jul 1999
Posts: 1,827
Likes: 1
From: Indianapolis, IN
Car: 2000 Trans Am
Engine: LS1
Transmission: T56
ive heard bad things about TPIS proms. Plus they are expensive to boot.
I personally would not buy one from them.
------------------
-86 IROC
Vortech stuffed EFI 406 in progress
-=ICON Motorsports=-
I personally would not buy one from them.
------------------
-86 IROC
Vortech stuffed EFI 406 in progress
-=ICON Motorsports=-
Member
iTrader: (2)
Joined: Jul 2000
Posts: 386
Likes: 0
From: helldon, fl
Car: 87 trans am GTA
Engine: tesla permanent magnet
Transmission: 93 T-56
Axle/Gears: moser 12bolt w/ 3.73
i had mine done by ed wright at fastchip.com it was only $300 plus shipping he's reallly good and has awesome turnaround. i dont have any problems with mine. at least check it out!!
------------------
87GTA looking for a super ram!!! 355, A4 ran high 12's with old school setup and radials, hoping for low 12's or better
/91 TA daily driver LB9 A4 2.73,
------------------
87GTA looking for a super ram!!! 355, A4 ran high 12's with old school setup and radials, hoping for low 12's or better
/91 TA daily driver LB9 A4 2.73, Trending Topics
Junior Member
Joined: Feb 2000
Posts: 85
Likes: 0
From: New Mexico
Car: 85 Mercedes 500SEL
Engine: 5.0 DOHC
Avoid TPIS at all costs. They advertised a Banks cat back for a 4 bolt converter then when I received it there was no 4 bolt flange and the wrong intermediate pipe. So the best they will do is send me a flared pipe, still with no flange. I will have to have that welded on they say. And they made me pay shipping to send it back to them. Sorry so long, had to vent. Go with Ed Wright, I am very pleased with my Stage 2 chip and he knows the meaning of customer service.
------------------
85 IROC,5.0 TPI,T-Tops,fully loaded,black with red Lear-Siegler "Camaro" interior,Decal Delete,91 Bose stereo,Stage 2 Fastchip,AFPR,TB Airfoil,K&Ns,March pulleys,Alum. Driveshaft,92 police version 700r4
"The Devil drives a Camaro"
------------------
85 IROC,5.0 TPI,T-Tops,fully loaded,black with red Lear-Siegler "Camaro" interior,Decal Delete,91 Bose stereo,Stage 2 Fastchip,AFPR,TB Airfoil,K&Ns,March pulleys,Alum. Driveshaft,92 police version 700r4
"The Devil drives a Camaro"
TPIS chips are definitely worth it. With my rebuilt, modified motor, I dropped .7 from the chip alone. But like others said, it is worth it only as your last mod to compliment everything else, and it will cost you $$$.
------------------
1989 IROC-Z 5.7L
------------------
1989 IROC-Z 5.7L
Thread
Thread Starter
Forum
Replies
Last Post
Sanjay
Engine/Drivetrain/Suspension Parts for Sale
1
Aug 12, 2015 03:41 PM





