# Grand Prix Gtp

**URL:** <https://forums.speedlife.net/t/grand-prix-gtp/165816>\
**Category:** PittSpeed Automotive\
**Created:** [April 19, 2004, 3:54pm UTC](https://forums.speedlife.net/t/grand-prix-gtp/165816 "2004-04-19T15:54:40Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![slpgtp2000](https://avatars.discourse-cdn.com/v4/letter/s/a87d85/32.png) [@slpgtp2000](https://forums.speedlife.net/u/slpgtp2000)\
**Post date:** [April 19, 2004, 3:54pm UTC](https://forums.speedlife.net/t/grand-prix-gtp/165816/1 "2004-04-19T15:54:40Z")

</div>

Hey, i run a 1999 gtp with an air intake and catback exhaust. I was wondering if it was safe to run a 3.25 inch supercharger pulley with a reprogrammed pcm. Also i’m looking for a pulley puller to either buy or borrow( i will give u some money) so that i could install the pulley. If you know of anyone selling any gtp parts please let me know. thanks

---

<div class="post-metadata">

**Author:** ![GNocide](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/gnocide/32/5947_2.png) [@GNocide](https://forums.speedlife.net/u/GNocide)\
**Post date:** [April 19, 2004, 3:59pm UTC](https://forums.speedlife.net/t/grand-prix-gtp/165816/2 "2004-04-19T15:59:26Z")

</div>

yes although its recomended you get 1.9 rockers and a down pipe. but first a scan tool (scan master. snap-on, ect) to moniter kr and spark advance is your best freind.

---

<div class="post-metadata">

**Author:** ![grandamld9](https://avatars.discourse-cdn.com/v4/letter/g/48db29/32.png) [@grandamld9](https://forums.speedlife.net/u/grandamld9)\
**Post date:** [April 19, 2004, 5:27pm UTC](https://forums.speedlife.net/t/grand-prix-gtp/165816/3 "2004-04-19T17:27:29Z")

</div>

you can rent a pulley puller from places like auto zone and so on.

---

<div class="post-metadata">

**Author:** ![imported\_Sleeper](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/imported_sleeper/32/5939_2.png) [@imported\_Sleeper](https://forums.speedlife.net/u/imported_Sleeper)\
**Post date:** [April 20, 2004, 4:42pm UTC](https://forums.speedlife.net/t/grand-prix-gtp/165816/4 "2004-04-20T16:42:28Z")

</div>

> _Originally posted by 97GrandAMLD9_   
> **you can rent a pulley puller from places like auto zone and so on.**   
> Not these ones:mad: Jim,just like i told you and gnocide said too,you need either rockers or headers,on few occasions i have seen very few people run a 3.25 with none of those and be fine. You need to get that 3.4 on first and run it for awhile till you atleast get rockers. You,ll learn:D Oh and john…spark advance OWNES you:D

---

<div class="post-metadata">

**Author:** ![Broken041](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/broken041/32/5968_2.png) [@Broken041](https://forums.speedlife.net/u/Broken041)\
**Post date:** [April 27, 2004, 4:21pm UTC](https://forums.speedlife.net/t/grand-prix-gtp/165816/5 "2004-04-27T16:21:07Z")

</div>

3.25 pulley and what reprogrammed PCM? If it’s a GPS PCM, no. Maybe on a custom DHP, but I doubt it seriously. Do the 3.4 as SleeperGTP has said.