Hey guys, i think i am going to order these two. However, what kind of power gain will i be looking at? How is that combo? any help would be appreciated.

 

As long as you get the catback for the '86-'90 TPI single cat application, it'll be fine.

Gains will depend upon what else you've done to the engine/car.

 

OK, so i bought both things but now i have a question, since i wont be installing a new cat, im just going to put straight pipe there. should i still hook up the little tubes that are on the headers? or should i leave them? should i remove the smog pump? and this may be a nooby question, but the headers will come with gaskets and header bolts right? and do i spend the $$ to have a shop install the headers or could i do it? isnt there a big risk of breaking a manifold bolt in the head? thanks for your help and sorry for all the questions

 

anyone know what the hp gain will be on a stock tpi 350 with both of these? honest true numbers?

 

I have this setup it works very nicely did it all myself, headers go in very nicely, and i noticed a very nice difference in hp and tourque

 

did you get the Y pipe that goes with the 2055 headers? if you didnt i would, fits great and saves hassle from having to build a Y pipe.

 

Yes I did it worked great, even after my motor swap from a 305 to my 355

 

thats one of the main points i like about my 2055's, you can unhook the Y from the headers if you have to do any work and no gaskets involved.

 

Yes that is a great feature of them

 

Only on TGO can you resurrect a 3 yr. old thread.

 

I gained 20rwhp on a bone stock L98 with shortie hedmans and flowmaster exhaust. went from 214 to 234 at the wheels, dyno'd.

Will

 

well i just ordered my magnaflow cat back to add to my hooker 2055 i bought used off someone here... hope i made the right choice....


however i think the 3" walker cat i have is ****. dont see how to install that without welding. gonna be a pain in the ***