Universal 2.5 inch muffler Long offset Oval 2.5" inlet 3.5" outlet 1320 Performance Extended Wheel Stud Kit M12 x 1.5 Compatible with 88+ Honda RSX Civic Si CRV similar to 100-7712 arp 88-91 civic

88-91 civic

the OEM position

350˝ Diameter - Pitch M12 x 1

we used dual seat reclining adjustment knobs for fine adjustment and also more reliable

Toyota Scion™ - manual: 12mm x 1

Universal 2.5 inch muffler Long offset Oval 2.5" inlet 3.5" outlet 1320 Performance Extended Wheel Stud Kit M12 x 1.5 Compatible with 88+ Honda RSX Civic Si CRV similar to 100-7712 arp 88-91 civic1320 Performance StreetFlow Universal Mufflers offer a perfect balance of providing unrestricted exhaust flow thanks to our "True Straight Through" while effectively controlling exhaust tone and drone due to the dense, multi layer sound suppression materials packed into each of these mufflers. All StreetFlow Universal Mufflers feature PREMIUM 304 Stainless Steel construction, polished to a beautiful mirror finish. PLEASE SEE ALL 21 PICTURE FOR EXTACT