Is the diameter of the entire system2.5 in? Or does the pipe go down to2 1/4 as the stock one does?
2040435
2.5 entire length, throaty sound, not as quiet as stock. muffler & tip stainless pipe aluminized. Good product
2040436
It's 2.5 in. through out. It bolts right to the catalytic. If you have the original catalytic it's a bolt on system. If you have replaced the catalytic with a universal unit, you will have to make any needed modifications.
1208888
I believe it is 1/8" NPT (National Pipe Thread). I didn't try threading it onto a known NPT fitting, but I'm pretty sure it is.
52562
I measured it , it is 3/4 inch o d . You will need a reducer . Which is very cheap. I hope this helped.
2119015
I believe it's 2.5"at the end, so as long as you mount it with an adapter pipe which any so should have than yes
1009933
Not sure why it says 1/2", but it is definitely 3/8". I checked it with my pipe caliper just now.
1880526
Hi David, the collectors are 2.5 and reducers also too Next the flange is 3/8 thick and tubing size is 1 5/8. Thanks Mark.
1791850
yes 21/2" on inlet and outlet. it made my gsr swapped civic sound a little quieter with less drone/rasp. When I redue my exhaust to a 3" I might use 2 of them. the only downside is they're heavy
764562
I believe the 1-5/8" refers to the size of the pipe assembly that the stopper sits atop. I've measured the two stoppers in the two sink vessels that I installed and they are both 2-5/8" in diameter. Hope this helps.
520616
Do you have 2 inch pipes or 1 1/2 inch? If you have 2 inch you need a 2 hp. If you have 1 1/2 it will work beautiful.
1538712
This is a cat back system so there is no down pipe with it. The pipe connecting to the cat makes the connection at 3.5 inches and then from that connection back it is a 5 inch system.
1724372
It is a standard 1/2" pipe. I believe Grohe is a standard 1/2" also. Otherwise have no idea. Good luck. Great product.
367280
Yes, the 1/2" size refers to the hose size only. End connections for both 1/2" hose and 5/8" hose are 3/4" National Hose Thread (NHT).
133430
No. The spout end is threaded for a Moen air-rater. The 1/2" IPS connections refers to the hot and cold water line connections. BTW always tape the threaded connections with pipe tape to prevent leaks. Hope this helps.
1734765
Yes part# 18124 is 2 1/2 in and out. Same length. Thanks!! WCPDIESEL 888-986-3373
1530149
No, It was a snug fit with my 2.5 O.D. pipes. There is no way it would fit a 2.562 O.D. pipe.
392741
No: the exterior threads would fit into a coupling for a 1/2 inch pipe, but not into a 1/2 inch pipe.
1543606
I believe you will have to swap the ball for a 2" as I did for my travel trailer. You will also need a reducer sleeve for the 1" shank that the 2" comes with. The one on this unit is 1 1/4". I cut a piece approximately 1/2" long from a 1" pipe and made a slit down the middle.