TPIS headers
Thread Starter
Safety Car
Joined: Jun 2003
Posts: 4,510
Likes: 240
From: Coconut Creek FL
TPIS headers
Can anyone tell me about them? Good, Bad, other...I may have a chance to get a used set for a great price...97 coupe...they are from a 99...will they fit?
Thanks!
Thanks!
Le Mans Master
Joined: Sep 2002
Posts: 5,187
Likes: 6
From: Oakville Ontario,Canada
Originally Posted by BT-01-vette
I have them and the only thing I noticed is that they began to form light rust spots in a short period of time. Post this over in the tec section, you'll have more info to work with
Did you get the coated ones? I've had mine a couple years and they still look new. They were one mod that made me feel a difference....big sound difference...
My car dyno'd at 324 and stock is about 300-305... so there is a decent HP increase. I also have Corsa exhaust and the Vortex Breather but Im betting the 2 of those only add about 10hp together... for the price you cant go wrong
Race Director
Joined: Aug 1999
Posts: 13,300
Likes: 2,510
From: Bluffton SC via Canton Oh
I've had mine maybe 3 years. Most noticible mod I did to increase HP. I think there were some quality concerns early on but the ones I have look brand new with maybe 15K on them.
Racer
Joined: Jun 2005
Posts: 481
Likes: 0
From: Lake Forest CA
You might consider a 3.90 transaxle instead. I considered headers, but the long tubes that really perform are illegal in California.
The 3.90 will give you instant performance at any RPM. I got mine from DynoTech Engineering, had it installed at a local shop, all for about $2k.
I just completed the 300mi break-in, so I haven't been able to open it up. But I can FEEL the difference just in normal driving.
Doesn't hurt top end either--1750 RPM @ 70 MPH in 6th gear vs 1500 RPM before conversion.
Will have it dyno'd soon. I got 319 RWHP and 323 ft.lbs torque with a Vortex intake and B&B PRT exhaust.
The 3.90 won't change the HP, but should have a big (hopefully) affect on torque.
The 3.90 will give you instant performance at any RPM. I got mine from DynoTech Engineering, had it installed at a local shop, all for about $2k.
I just completed the 300mi break-in, so I haven't been able to open it up. But I can FEEL the difference just in normal driving.
Doesn't hurt top end either--1750 RPM @ 70 MPH in 6th gear vs 1500 RPM before conversion.
Will have it dyno'd soon. I got 319 RWHP and 323 ft.lbs torque with a Vortex intake and B&B PRT exhaust.
The 3.90 won't change the HP, but should have a big (hopefully) affect on torque.
Le Mans Master
Joined: Jan 2002
Posts: 7,275
Likes: 19
From: Camden County NJ
Originally Posted by GettReal
Did you get the coated ones? I've had mine a couple years and they still look new. They were one mod that made me feel a difference....big sound difference...
My car dyno'd at 324 and stock is about 300-305... so there is a decent HP increase. I also have Corsa exhaust and the Vortex Breather but Im betting the 2 of those only add about 10hp together... for the price you cant go wrong
My car dyno'd at 324 and stock is about 300-305... so there is a decent HP increase. I also have Corsa exhaust and the Vortex Breather but Im betting the 2 of those only add about 10hp together... for the price you cant go wrong
Yes they were coated
