redvett22

Looking at picking up some headers for my 94 and heard that this is one of the better choices. Went to there web site but they had nothing. Do they still make them?

JackDidley

I found them.
http://tpis.com/parts/view/235

iamjeff76

I sent them an email recently about the headers and they said they would have more in March. I had asked about headers for a 96 LT4.

ghoastrider1

I don't really care for their website. Could be a bit easier to find what your looking for..such as a NON roller cam for a L-98.

JackDidley

When I bought mine, they just lied. I called and asked if they were in stock. Reply was "Sure we'll ship them out Friday" . I should have asked, which Friday ? It was 3 weeks, I think, maybe more. Been a while. That said they are the best fit Ive ever seen for headers.

redvett22

Thanks for all the input gonna try and get in contact with them. Was also lookin at Exotic muscle as well as Melrose but witch one of the three has a better figment? I know there will be some modifying as they are long tubes.

MDstar2

I had to wait 5 weeks for TPIS to make my headers. That was miserable. They fit like a glove and are a nice quality piece though. It was worth the wait for me.

whalepirot

TPIS long tubes are still running on my car, but the heads' angled plugs required dimpling #7 tube for spark plug clearance. Even then, I had to go with ceramic boots to stop the burn-through, arcing, and the recurring miss.

C4in mesa

I have seen TPIS long tube headers and they are very nice. However are they worth the money ? This must be asked in my opinion because I don't have hundreds falling out of my pants. The key with choosing headers as far as I am concerned is the thickness of the flange. The next concern is choosing the right bolts. With my L98 and I learned the hard and expensive way is spacers. My Hedman headers cost me $495 from Summit and they are ceramic coated with EGR and O2 sensor ready. They do not have the spacers and my lack of attention cost me a $1,000 in repairs. Had I paid attention and seen that the spacers were vital in getting the A/C and alternator brackets hooked up. Not to mention making it much easier to bolt the headers up to the heads. In any case I am not trying to deter anyone from spending the extra money on TPIS headers. Just be aware that youmcan save $500 by buying a different brand. Choose allen head bolts and use spacers. Getting bolts up against the tube is the trick.

Drew95

I went with ARH. Had them in a week. Absolutely NO modifications required - they went right in.

I added the catted X (I still have to pass emissions for a couple more years on my 95), and they hooked up fine to my Corsa catback.

Dave Schotz

ARH for the win IMO as well!

Best regards,
Dave

grandspt

I have the ARH also on my 96 LT4. They are very good and fit very well. But with cats make sure you add some type of shielding underneath the car (I used Thermotec). I also needed an O2 sensor extension which ARH sent out quickly. Ask ARH to include header bolts as mine were not included. And also there is a small bracket on the back of the alternator on the 96 LT4 I had to modify, some people eliminate it. I wanted to keep it so I made it fit properly and it looks factory fit. But I am happy with the ARH headers overall.

1993C4LT1

We need exhaust vids!!

dizwiz24

I have had both tpis 1 3/4" and arh 1 7/8" stepped headers.

The tpis headers are the better of the two In terms of fitment.

Spark plug changes and header bolt stud access was easier on the tpis..also, the arh headers wont fit (without adapters) if you run a canton road race oil pan with swingouts. The tpis fit fine.

Now to be fair...sure a bigger 1 7/8" header is going to be tighter to shoehorn in. The arh is good for what it is.

Arh headers boast of their ultra thick header flange but i am not sure what advantage it gives.
to me, it just makes their product heavier when every pound counts.

So why did i go with arh? Because they are 1 7/8" and i wanted their great 3" x-pipe setup which fits awesome.

If i was choosing standalone 1 3/4" headers, tpis would be my choice .

I say standalone because if you want the complete arh header/ 3" dual exhaust system which includes xpipes and cats that will mate to your existing mufflers then this would make me do the arh.

markvett

I chose the TPIS headers and it was a wonderful choice. They have been on for 8 yrs now with NO leaks, easy spark plug replacement and still look great also. Definately worth the extra money

Dr.DoomsTPI

I've run TPIS headers in my 87 since about 07 with no issues - now looking for headers for my 94 LT1 and might go the TPIS route

dizwiz24

Forgot to add to my post above:

Ive gotten some burned wires with the arh headers.

Never had any issues with the tpis

But maybe thats my fault because i expected the wires to route the same as with the tpis.

Blue Vert 91

I had TPIS and they are a quality product, I had their intake also , it was a sweet running car

aklim

I don't know about your car but with the L98, I don't have to do much to remove the plugs which I do annually. I don't have to get under the car, remove my starter to make it easier (91 Firebird). I would THINK it is the same for an LT1 motor.

Jonnymac

I have Ems now and will be switching over at some point.