All other issues aside, for your climate I would be careful even with a 3.5. Balls hot is pretty hot. Without any other airflow mods I don't know if you can really pull off much of a drop.

Nice thing with an mps is you can swap pulleys all day. I'd start with the 3.5. Scan, tune, assess.
yea ...

yea its been tuned, i have 0 knock at WOT from 0-120, so thats not a concern anymore

Some things i noticed.

IF you have headers, you cant have a downpipe, it is built into the headers

The 160* thermo is too cold for your car. Remove it for a 180 and have the fans properly set

you will need to get with your tuner, and scan AFTER the pulley is installed to see what kind of ...

Just got finished doing some work lol
Headers
3" downpipe
3.5" FWIC
160* Stat
Custom HP Tuners Tune
NGK TR6's

Finally thinking about dropping pulley sizes, might do a 3.5, or should i just do a 3.4?? If i do either do i need to get different size belt? Thanks

Well we installed them today, it was eventful, the fit wasn't great but they're in after a little fabbing and cutting lol

Dang it!!!!! And of course they're horrible with customer service trying to get ahold of them is gonna be a PITA!

Bs009-YES!! Well I have they're headers and was going to install them this weekend but now I'm concerned after seeing your thread!!

Has anybody installed these on your bonneville? if so did you have any issues with fitmet besides the tranny dipstick? I saw a build thread from another member saying he had a problem and was wondering if anybody else has? Any info greatly appreciated! Thanks

Are these chrome or polished stainless?

No other modifications are necessary? If i install them will it bolt right up the catback? do i need to add or cut any pipe for roper length? Much of a performance gain and or MPG?

Any users of SSAChromes? They seem reasonable?

What kind of modifications besides trans dipstick?

Iv searched a bit but have heard mix reviews, does anybody have any experience and or input on being able to use aftermarket Grand Prix headers on our SSEI's? I know theres a few different companies such as SSA, SD, PS... Can i bolt these up without any real fitment problems? Thanks!

http://www.ssautochrome.com/level.itml/icOid/1886
Anybody install these on a 2000+ SSEI? Any fitment or installation issues? Any issues with quality? Any info greatly appreciated!

yes for the most part, some mods are needed like W-Body dipstick for trans... I appologize for the size postings being in accurate... i have read about 10 different places and they all list different sizes.
What other modifications are required to fit http://www.ssautochrome.com/level.itml/icOid ...

will most "grand prix" aftermarket headers fit our cars?

Thanks for the input! greatly appreciated!!
Im searching different forums for a DHP, MAN are they hard to find, but wayyyyy cheaper than HPTuners!!!
FASGP: What kind of MPG you seeing? Any track times?

anybody use this from ZZP
http://shop.zzperformance.com/store/p/5 ... oller.aspx

What can I tune with myself that doesn't cost a fortune?