do flowmaster make gtps faster?

**blueguy** · 01-04-2009

Here is everything in a nutshell and I'm tired of reading this thread

1) Take off the 3.4" Pulley
2) Install a 180* T-Stat, if not done already
3) Install colder plugs if not done already
4) Get a Set of headers (they are what they are...you pay more for better fitment and coating materials...and yes a name brand.)
5) Get a PCM. ZZP = EPIC FAIL, do not go that route. Whoever does their tuning sucks ass. Go with a DHP, or Overkill. You can get a DHP from PFYC.com or 3800performance
6) Flowmasters = awesome. As long as you keep the resonator they are fine. No performance increases but the stock mufflers are the best muffs perf. wise anywhere.
7) SLP GTX is the Grand Prix that had a Ram Air Hood, 3.5" Pulley, SLP Catback, and Intake from the factory.

Hope this clears it all up.

**1998xGTP** · 01-04-2009

Yeah I think we covered it all, I just wasn't smart enough to do a synopsis

Thanks for the wrap up blue

**GTPRiley** · 01-04-2009

Thanks Nick!

**blueguy** · 01-04-2009

Double Post...I know I have put this one here...This is my car with Flowmaster 40's, Pacesetter headers, 3" Custom Exhaust, No Cat, Stock Resonator...and yes a ported blower from hell in the background...oh and a cam too

YouTube - GTP Exhaust

**98SilvermistGTP** · 01-05-2009

Whoa dude....you need to get a 3" downpipe before the headers. The stock downpipe has a ubend behind the cat that restricts exhaust flow. If you get headers, some of them come with a downpipe with a cat. But if you dont go headers just yet, make sure you do something about the downpipe. I run a 3.4 with the mods I have with very little knock. I had about 1-2 degree's and the mini afc 2.0 took care of that.

**blueguy** · 01-05-2009

The reason we say headers is because if you get them after a Downpipe then why waste the money? Just save for the headers and btw...the ones off of Ebay are maybe like $100 more than a ZZP Full 3" DP...just a thought though...