ok guys, here is the deal..i have a jdm 4-1 header, spoon n1 axel back, adrian teo high flow cat, and b pipe.. but my problem is..the header is 2.5', cat is 2.5', spoon n1 axelback is 2.5'...but the b pipe is 2.25..will it work?

 

will it work? yes.

should you upgrade? yes.

 

but for now itll work right? i just cant afford a b pipe righ tthis moment..

 

yeah, sure it will work...you'll just get better flow when you eliminate that lil bottle neck..

for now...your good to go

 

will it bolt right up though? thanks bro...

 

I thought the spoon n1 axle-back was 60.5mm, which is 2.38", not 2.5". At least that's what it says in my spoon catalog. did they change it recently?

oh, and as for will it bolt up, as long as the bolt holes in the flanges line up, everything will bolt-up fine.

 

I thought that the Spoon axle back was only 2.25"

 

you'll be fine billy. for a while i had my 2.5" cat going into a stock Si b-pipe. was there a difference after i changed it to a 2.5" bpipe? lord yes

Brian

 

are you planning to get the spoon b-pipe? if so, let me know, i can get them for you....

 

thank you guy!! Brian, you da' man!!

 

what b-pipe are you going to use? that is pretty close to what i am using.