I have a SOHC 1.8 and my exhaust is dead.....i need to do cat back...i have a muffler.......and a guy that is gonna do the piping.....about $150 canadian for Stainless mandrel bent.....but i wanna know about the sizes i should do .....will the SOHC benifit from 2.25 inch piping....or will it lose power? i don't know exactly what im' going to be doing in the next 2 years for engine.....but possible turbo is in the works... just looking for input...should i stay with the 1 7/8 stock size....or go to a 2.25 ?

 

WOW! 150 CD for mandrel bent cat back is a SUPER deal compared to US costs!

The recommended size for the 1.8L DOHC is 2.25" for manual and 2" for auto.

 

so...you are saying....with the SOHC i should probubly stick with 2" and not 2.25"... would there be any loss in power with the 2.25? b/c i don' tknow what i'm going to be doing in the next year...and i don't wanna have to redo the exhaust....would 2" be more effective in the SOHC.....anyone kmnow from experience?

BTW.....its a 92 SE SOHC 5 Speed....

 

Agreed. And when you go turbo you're going to want 2.5" anyways, which is too big for NA, so I wouldn't include future turbo in your exhaust plan.